FIELD OF THE INVENTION
[0001] The present invention concerns an air-conditioned building and the corresponding
method for air-conditioning a building, either used for residential or industrial
use, or for other uses such as for example for making air-conditioned rooms.
[0002] In particular, the present invention can be applied during the reconstruction of
already existing buildings or during the construction of new buildings.
[0003] Moreover, the present invention can be applied both to buildings built in the traditional
way, for example, with masonry or concrete, and to buildings made with new concepts,
for example, with low energy consumption, low environmental impact, with pre-fabricated
elements or not.
[0004] Here and hereafter in the description and in the claims, the term air-conditioning
comprises both the action of cooling and heating a room.
BACKGROUND OF THE INVENTION
[0005] Known buildings are provided with air-conditioning systems and/or apparatuses able
to manage and control ambient conditions, for example the temperature and/or humidity,
of at least an area or room of the building.
[0006] In particular, air-conditioning plants are known, installed in a building, for example
in one or more rooms, and which can comprise one or more air-conditioning apparatuses
such as radiators, radiant plates, convectors, fan coil units, air-conditioners, heat
pumps, floor-type radiant heaters or other similar or comparable heating bodies.
[0007] These air-conditioning apparatuses are connected to each other by a fluid-dynamic
circuit in which a thermodynamic or heat-carrying fluid is made to flow, necessary
to carry out the heat exchange toward the room in which the air-conditioning apparatus
is inserted.
[0008] The thermodynamic fluid used can be for example air, water, or generally a liquid
or a gas.
[0009] The fluid-dynamic circuit typically comprises a plurality of pipes or channels which
connect the air-conditioning apparatuses and in which the thermo-dynamic fluid is
made to flow.
[0010] In the heating sector, radiators and radiant plates are known, installed in a fixed
zone of a room and which, exchanging heat with water, determine the heating of the
room, substantially by irradiation.
[0011] Thermal convectors and fan coil units are also known, also installed in a fixed position
in a room or zone to be heated and consisting of a plurality of finned tubes inserted
in a casing open at the ends. Inside the thermal convector the column of warm air
that is generated determines a chimney effect with consequent circulation of hot air
in the room. Fan coil units, unlike thermal convectors, are also provided with a fan
to provide forced ventilation of the ambient air and increase the efficiency of heat
exchange.
[0012] These air-conditioning apparatuses have the disadvantage that, in the room where
they are installed, they generate zones of differentiated temperature due precisely
to the concentrated heating action of the apparatuses themselves. Even the adoption
of forced ventilation, although reducing this disadvantage, is extremely unsuitable
since it causes the movement of dust and generates annoying air currents for the users
present in the immediate vicinity.
[0013] To obtain an almost uniformly distributed heating on the surfaces of a room in a
building, or construction, floor installations of radiant panels are known, in which
the radiant body consists of the floor itself and in the structure of which tubes
are inserted for the passage of the heat-carrying fluid, generally water.
[0014] Even though it allows heat distribution over the whole surface of the building in
which it is installed, floor heating has the disadvantage of generating air stratifications
at different heights in the room. Moreover, for some applications, for example domestic
ones, this type of heating has proven unsuitable, since it causes people health problems,
for example of the cardiovascular apparatus.
[0015] In the field of cooling of spaces, air-conditioning plants are known which, using
the principles of a refrigeration cycle, cool a thermo-dynamic fluid and generate
a cooling action of the space.
[0016] In this case conditioning units are installed, possibly served by suitable air feed
pipes, that provide to emit cooled air into a space to reduce the temperature.
[0017] These conditioning units, in some cases, can have not only an air cooling function
but also an air heating function, providing, for example, to use heating elements,
such as electric resistances.
[0018] In practice, conditioning units do not define a homogeneous distribution of heat
in the space either, and can generate unpleasant air currents, damaging for people's
health.
[0020] The known air-conditioned buildings described in these documents also comprise external
perimeter walls and separation walls between habitable floors inside which the living
spaces are disposed.
[0021] The perimeter walls and separation walls, together with the walls of the living spaces,
define one or more hollow spaces for the passage of a heat-carrying fluid.
[0022] The heat-carrying fluid is heated or cooled by a conditioning unit connected to the
hollow spaces.
[0023] In all the solutions presented in the above documents, it is difficult to optimize
the flow of the heat-carrying fluid in the hollow spaces because the hollow spaces
of the different habitable floors are reciprocally connected to each other. The difficulty
of optimizing the heat-carrying flow does not allow to obtain uniformity and homogeneity
of temperature inside the living spaces and therefore causes the creation of hotter
and colder living spaces, even on the same habitable floor.
[0024] Surface zones which are hotter and/or colder of the same living space can also occur,
triggering upward and/or downward drafts in the living space.
[0025] The solutions described in documents
JP-A-H09.170784 and
JP-A-2003.042484 also provide that the heat-carrying fluid that circulates in the hollow spaces is
also made to circulate inside the living spaces themselves.
[0026] This solution is particularly complex to obtain in that it is necessary to suitably
and accurately treat the heat-carrying fluid in order to introduce clean, uncontaminated
air into the living space, which can be breathed by persons residing therein. Moreover,
in these solutions, the heat-carrying fluid introduced into the living space can generate
annoying drafts for the persons residing therein, or a movement of dust which is damaging
for users' health.
[0027] In the solutions described in documents
JP-A-2008.101462,
JP-AH10.132301, and
JP-A-2011.226677 the conditioning unit is located directly in the hollow space. This condition causes
uncontrollable variations at least of the temperature of the heat-carrying fluid inside
the hollow spaces due to overheating of the conditioning unit for example. Moreover,
possible moving parts of the conditioning unit, or possible breakdowns of the latter,
can cause a contamination of the heat-carrying fluid in the hollow space.
[0029] The air circulating in the hollow spaces is subsequently expelled through apertures
made in the external walls of the air-conditioned building.
[0030] This causes considerable consumption by the conditioning unit since the thermal power
accumulated by the air present in the hollow spaces when expelled is completely dispersed.
[0031] One purpose of the present invention is to make an air-conditioned building that
allows to resolve the disadvantages linked to the non-uniformity of heating of living
spaces.
[0032] Another purpose of the present invention is to make an air-conditioned building that
allows to increase the heat exchange efficiency inside the building.
[0033] Another purpose of the present invention is to put into action energy saving measures,
and measures intended to obtain comfortable ambient conditions.
[0034] The invention thus proposes to manage and to put into practice the construction plan
of an air-conditioned building so that the behavior of the building is optimized during
the various seasonal cycles, combining the traditional energy conservation approach
with aspects connected to the inertial behavior of the building, the dynamic control
of exposure to the sun, the architectural structure in relation to an upgrading of
natural ventilation, the control of excessive exposure to the sun and the physical
contextualization in relation to exposure to breezes, shade and similar phenomena
and the exploitation of possible renewable energy sources present on site.
[0035] The Applicant has devised, tested and embodied the present invention to overcome
the shortcomings of the state of the art and to obtain these and other purposes and
advantages.
SUMMARY OF THE INVENTION
[0036] The present invention is set forth and characterized in the independent claims, claim
1 and claim 9, while the dependent claims describe other characteristics of the invention
or variants to the main inventive idea.
[0037] In accordance with the above purposes, an air-conditioned building according to the
present invention comprises a plurality of first walls configured to define together
at least a first compartment, and a plurality of second walls located inside the first
compartment and connected with each other to define together at least a second compartment,
which, during use, can define one or more rooms of the air-conditioned building, or
one or more rooms or spaces which can be air-conditioned depending on particular needs.
[0038] Each of the second walls faces at least one of the first walls and is distanced from
the latter so as to define at least a continuous hollow space, closed with respect
to the second compartment, and configured to contain a heat-carrying fluid.
[0039] The building also comprises an air-conditioning apparatus configured to regulate
the thermal state of the heat-carrying fluid present in the hollow space.
[0040] In order to regulate the thermal state it is provided that the heat-carrying fluid
can be heated or cooled according to needs by means of heat exchange.
[0041] According to one aspect of the present invention, the air-conditioning apparatus
comprises a conditioning unit located outside the hollow space and a fluid-dynamic
circuit that connects the hollow space to the conditioning unit with a closed-ring
circuit, to make the heat-carrying fluid circulate in the hollow space and to provide
thermal control of the second walls. The heat-carrying fluid, heated or cooled by
the conditioning unit, transmits the heat by convection to the second walls which,
in their turn, act as a radiant body, both for heat and for cold, toward the second
compartment.
[0042] The hollow space that substantially surrounds the whole second compartment allows
to make the thermal conditions inside the latter uniform, consequently making the
temperature uniform too, and preventing the onset of unwanted and annoying air currents
to persons residing therein.
[0043] A uniform temperature condition inside the second compartment allows to obtain controlled
and uniform conditions of humidity both in the second compartment and in the hollow
space. A uniform and controlled condition of humidity guarantees optimal conditions
of thermo-hygrometric well-being for the persons residing therein.
[0044] In this way it is also possible to prevent the onset of hot and cold points inside
the second compartment and therefore the generation of mold.
[0045] The positioning of the conditioning unit outside the hollow space allows to control
the thermal state of the heat-carrying fluid precisely and accurately, preventing
contamination thereof.
[0046] Moreover, a closed-ring circulation of the heat-carrying fluid in the hollow space
allows the conditioning unit to always control the thermal state of the heat-carrying
fluid, preventing heat dispersions to the outside and reducing energy consumption
in the functioning of the conditioning unit.
[0047] According to a possible form of embodiment of the present invention, the building
comprises one or more habitable floors, and the at least one first compartment, the
at least one second compartment and the at least one hollow space are present in one
of the one or more of said habitable floors. The conditioning unit and the fluid-dynamic
circuit are connected only to the at least one hollow space of one of the habitable
floors. This allows to precisely control point-by-point the thermal conditions of
the second compartments of each habitable floor, because each habitable floor has
its own conditioning unit which allows to optimize the flows of heat-carrying fluid
in the hollow space so that all the second walls of a habitable floor are affected
uniformly by a flow having the same heat power.
BRIEF DESCRIPTION OF THE DRAWINGS
[0048] These and other characteristics of the present invention will become apparent from
the following description of some forms of embodiment, given as a non-restrictive
example with reference to the attached drawings wherein:
- fig. 1 is a section view of a possible form of embodiment of an air-conditioned building
according to the present invention;
- fig. 2 is a section view along the section line II-II of fig. 1 according to a possible
form of embodiment of the present invention;
- fig. 3 is an enlarged view of detail A in fig. 1;
- fig. 4 is an enlarged view of detail B in fig. 1;
- fig. 5 is an enlarged view of detail C in fig. 1;
- fig. 6 is a cross section of fig. 1 according to a possible form of embodiment,
- fig. 7 is an enlarged view of detail D in fig. 6;
- fig. 8 is a longitudinal section view of an air-conditioned building according to
a possible form of embodiment;
- fig. 9 is an enlarged view of details E in fig. 8;
- fig. 10 is a partial section view along the line X-X in fig. 9, of a construction
detail;
- fig. 11 is a longitudinal section view of an air-conditioned building according to
another form of embodiment;
- fig. 12 is an enlarged view of detail F in fig. 11;
- fig. 13 is a longitudinal section view of an air-conditioned building according to
another form of embodiment;
- fig. 14 is a section view of fig. 1 according to a possible variant form of embodiment;
- fig. 15 is a graph comparing the air-conditioning method according to the present
invention and known air-conditioning methods.
[0049] To facilitate comprehension, the same reference numbers have been used, where possible,
to identify identical common elements in the drawings. It is understood that elements
and characteristics of one form of embodiment can conveniently be incorporated into
other forms of embodiment without further clarifications.
DETAILED DESCRIPTION OF SOME FORMS OF EMBODIMENT
[0050] A possible embodiment of an air-conditioned building 10 is shown schematically in
figs. 1 and 2 and comprises a plurality of first walls 11 configured to define together
at least a first compartment 12.
[0051] Here and hereafter in the description, except where expressly specified, the term
wall means any constructive element of a building with the function of defining the
lateral perimeter, or part of it, the ceiling or the floor.
[0052] The first walls 11 can include for example first lateral walls 11a, at least a first
upper wall 11b, or ceiling, and a first lower wall 11c, or floor.
[0053] The air-conditioned building 10 also comprises an air-conditioning apparatus 13 configured
to regulate the thermal state of a heat-carrying fluid and to consequently manage
the air-conditioning conditions of the air-conditioned building 10.
[0054] In particular, the air-conditioning apparatus 13 can be able to manage at least one
of either the temperature, the humidity or possibly also the emission speed of the
heat-carrying fluid.
[0055] In the air-conditioning apparatus 13 the heat-carrying fluid is heated and cooled
by heat exchange, in order to obtain pre-determined thermal/thermal-dynamic conditions.
[0056] The air-conditioning apparatus 13 can be chosen from a group consisting of a heating
plant, a cooling plant, a geothermal plant, a solar thermal plant, or possible combinations
thereof.
[0057] As heat-carrying fluid it can be provided to use air or gas, possibly treated opportunely
as will be described hereafter.
[0058] According to one aspect of the present invention, a plurality of second walls 14
are disposed inside the first compartment 12, positioned facing the first walls 11
and distanced from the latter.
[0059] The second walls 14 can include second lateral walls 14a, at least one second upper
wall 14b, or ceiling, and at least one second lower wall 14c or floor.
[0060] The second walls 14 are connected to each other so as to define together at least
a second compartment 16 which can constitute, for example, one or more rooms of the
air-conditioned building 10, or one or more chambers or cells which can be air-conditioned
depending on the applicative needs of the application.
[0061] In other words, the second walls 14 define a container which is substantially closed
on all its sides, whose internal cavity is the second compartment 16.
[0062] Between each of the first walls 11 and the second walls 14 a substantially continuous
hollow space 15 is defined, in which the air-conditioning apparatus 13 is connected
in order to make the heat-carrying fluid circulate inside it.
[0063] By substantially continuous hollow space 15, we mean that each hollow space which
is defined between the first walls 11 and the second walls 14 is fluidically connected
to the adjacent one and there are no interruptions or dividing walls which can interrupt
or obstruct the flow of the heat-carrying fluid. That is, the hollow space 15 is comprised
between the whole external perimeter development of the container 30 and the first
compartment 12 defined by the first walls 11.
[0064] The hollow space 15 is closed on itself between the first walls 11 and the second
walls 14.
[0065] In this way, the heat-carrying flow hits all the second walls 14 of the second compartment
16 homogeneously, thus guaranteeing a uniform heat exchange on all the second walls
14. Moreover, the heat-carrying flow does not go into the second compartment 16, generating
annoying drafts harmful for the people residing in the second compartment 16.
[0066] According to possible formulations of the present invention, the hollow space 15
can have a thickness comprised between 10mm and 100mm, preferably between 20 mm and
80 mm, even more preferably about 30 mm.
[0067] According to possible formulations of the present invention, the air-conditioning
apparatus 13 can comprise a conditioning unit 22 of the heat-carrying fluid and a
fluid-dynamic circuit 23 that connects the conditioning unit 22 to the hollow space
15 with a closed-ring circuit. In this way the heat-carrying fluid present in the
hollow space 15 is constantly re-circulated upon itself and in the hollow space 15
itself, preventing heat losses toward the outside.
[0068] The conditioning unit 22 can comprise, for example, a boiler, one or more electric
resistances, a conditioner, a humidifier, a heat pump or possible combinations thereof.
Filters for the treatment of the heat-carrying fluid which is introduced into the
hollow space 15 can also be associated to the conditioning unit 22.
[0069] The conditioning unit 22 is located outside the hollow space 15 in order to prevent
possible contamination of the heat-carrying fluid contained in the hollow space 15
and to prevent the latter from undergoing uncontrolled variations of its thermal state.
[0070] According to a possible form of embodiment, shown in figs. 1 and 13, the conditioning
unit 22 is located outside at least the first compartment 12, in this case, outside
the building 10, and the fluid-dynamic circuit 23 is positioned through, through at
least the first walls 11 of the first compartment 12.
[0071] According to a variant embodiment, shown for example in fig. 8, the conditioning
unit 22 is located inside the building 10, in this case inside one of the second compartments
16, and the fluid-dynamic circuit 23 connects the conditioning unit 22 to the hollow
space 15.
[0072] The first walls 11 or the second walls 14 can be provided with at least two apertures,
respectively a first aperture 26 and a second aperture 27 provided to allow the connection
of the air-conditioning apparatus 13 with the hollow space 15 and allow the introduction
and discharge of the heat-carrying fluid in the latter.
[0073] In particular, according to the forms of embodiment in figs. 1-4, 6, 13 and 14, the
first aperture 26 and the second aperture 27 are made in the first walls 11. According
to this form of embodiment the conditioning unit 22 can be located outside the second
compartment 16, in this case outside the building 10, even if it is not excluded that
in possible forms of embodiment the conditioning unit 22 is located inside the second
compartment 16.
[0074] According to the form of embodiment in fig. 8, the first aperture 26 and the second
aperture 27 are made in the second walls 14. According to this form of embodiment
the conditioning unit 22 can be located inside the second compartment 16, as shown
in fig. 8, or outside the second compartment 16.
[0075] In particular, it can be provided in some forms of embodiment that the conditioning
unit 22 is predisposed to introduce the heat-carrying fluid through the first aperture
26 in a forced way, using ventilators for example, and to aspirate, for example by
a depression action, the heat-carrying fluid through the second aperture 27, or vice
versa.
[0076] According to some formulations of the present invention, the first aperture 26 is
made in a high part of the hollow space 15 while the second aperture 27 is made in
a low part of the hollow space 15.
[0077] According to possible forms of embodiment of the present invention (figs. 1-4, 6,
13 and 14) it is provided that the first aperture 26 is made in the first upper wall
11b, while the second aperture 27 is made in the first lower wall 11c.
[0078] According to the form of embodiment in fig. 8, the first aperture 26 is made in the
second upper wall 14b and the second aperture 27 is made in the second lower wall
14c.
[0079] The opposite disposition of the first aperture 26 and the second aperture 27 allows
to make the passage and movement conditions of the heat-carrying fluid uniform inside
the hollow space 15, and to prevent heat stratification phenomena.
[0080] According to one solution, the fluid-dynamic circuit 23 is connected on one side
to the first aperture 26 and on the other side to the second aperture 27 to connect,
with a closed circuit, the hollow space 15 to the conditioning unit 22.
[0081] According to a possible formulation of the present invention the first aperture 26
and the second aperture 27 are made in a central portion of the surface extension
respectively of the at least one first upper wall 11b and of the at least one first
lower wall 11c, or of the at least one second upper wall 14b and of the at least one
second lower wall 14c.
[0082] This allows the air-conditioning apparatus 13 to generate a flow of heat-carrying
fluid that uniformly laps all the walls of the second compartment 16, also those defining
a ceiling or a floor of a living space, preventing a direct passage of the heat-carrying
fluid from a lower part to an upper part of the second compartment 16.
[0083] In particular, if a heating action of the second compartment 16 is provided, the
heated heat-carrying fluid is introduced from the first aperture 26 and removed from
the second aperture 27. This solution prevents air stratification conditions and allows
to generate spontaneous convection motions able to make the temperatures in the second
compartment 16 uniform.
[0084] Vice versa, if it is necessary to cool the second compartment 16, the cold heat-carrying
fluid is introduced from the second aperture 27 and removed from the first aperture
26.
[0085] Possible implementations of the present invention provide that the first aperture
26 and the second aperture 27 are provided with mouths 28 to connect to the conditioning
unit 22. An example embodiment of the connection of the mouths 28 to the first aperture
26 and to the second aperture 27 is shown respectively in figs. 3 and 4.
[0086] The mouths 28 can be served by closing means, manual or automated, which allow to
control the flow of heat-carrying fluid through the first aperture 26 and the second
aperture 27. The flow can be controlled by simple choking or total interception thereof.
[0087] The fluid-dynamic circuit 23 can comprise one or more pipes 25 provided to connect
the conditioning unit 22 at least to the first 26 and to the second 27 aperture, possibly
by means of the mouths 28, if provided. The pipes 25 can be provided, in a known manner,
with insulating materials, provided to contain the heat losses to the outside.
[0088] A forced ventilation device 24 can be associated with the conditioning unit 22, provided
to move the heat-carrying fluid inside the fluid-dynamic circuit 23 and subsequently
inside the hollow space 15, with a determined intensity or speed. The speed of the
flow of heat-carrying fluid allows to regulate the thermal exchange modalities of
the latter with the second walls 14, and consequently of the second walls 14 with
the second compartment 16.
[0089] The forced ventilation device 24 can comprise at least one of either a ventilator,
a blower, an aspirator or similar or comparable devices and suitable to the purpose.
[0090] The conditioning unit 22 can be served by a commutation member 29 provided to invert
the flow of heat-carrying fluid in the fluid-dynamic circuit 23, between the first
aperture 26 and the second aperture 27. In this way, depending on the cooling or heating
actions of the second compartment 16, it is possible to commutate the delivery and
the aspiration of the heat-carrying fluid into or from the hollow space 15, to optimize
the flow of the heat-carrying fluid in the latter.
[0091] Some solutions of the present invention can provide that the commutation member 29
is connected to the forced ventilation device 24 and is configured to invert the direction
of feed of the heat-carrying fluid through the first aperture 26 and the second aperture
27. It can be provided for example that the commutation member 29 inverts the movement
of the forced ventilation device in order to invert the direction of the feed flow.
[0092] In possible forms of embodiment, the second walls 14 can be distanced from the first
walls 11 by means of spacer elements 17.
[0093] The spacer elements 17 can be attached to the first walls 11 and to the second walls
14 by means of substantially known attachment members such as threaded connections,
pins, blocks or suchlike. Other forms of embodiment can provide a connection of the
spacer elements 17 by means of glues or adhesive tape for example.
[0094] According to possible forms of embodiment, the spacer elements 17 can extend for
at least part of the length of the second walls 14.
[0095] According to other forms of embodiment, the spacer elements 17 can extend for the
entire length of the second walls 14.
[0096] Possible solutions of the present invention can provide that the spacer elements
17 comprise oblong bars disposed parallel to each other and reciprocally distanced
on the surface extension of the first 11 and the second 14 walls. In this way it is
possible to guarantee the correct positioning of the second walls 14, preventing flection
and deformation thereof.
[0097] According to possible forms of embodiment of the present invention it can be provided
that the portion of hollow space 15 comprised between the first upper walls 11b and
the second upper walls 14b, and between the first lower walls 11c and the second lower
walls 14c is wider, with respect to the portion of hollow space 15 comprised between
the first lateral walls 11a and the second lateral walls 14a. This solution allows
to optimize the convective motions that are generated spontaneously in the hollow
space 15, for example due to the effect of the different temperatures of the first
11 and second walls 14, and to speed up the flow of heat-carrying fluid in the vertical
direction.
[0098] To this purpose it can be provided that the spacer elements 17 connected to the first
11a and to the second lateral walls 14a are less thick than the spacer elements 17
connected to the first 11b and the second upper walls 14b and to the first 11c and
the second lower walls 14c.
[0099] According to possible forms of embodiment, the spacer elements 17 associated to the
first lateral walls 11a and the second lateral walls 14a, that is, to the walls that
during use are substantially vertical, are disposed with their longitudinal development
in a vertical or sub-vertical direction. This disposition has the function of containing
the losses of load of the heat-carrying fluid in transit, and limiting the obstruction
effect conferred by the spacer elements 17 in the hollow space 15.
[0100] In possible forms of embodiment, the spacer elements 17 have a first edge 18 and
a second edge 19, opposite the first edge 18 which, when functioning, are disposed
resting against the first walls 11 and against the second walls 14 or vice versa.
[0101] In possible solutions, shown for example in figs. 1, 2 and 5, the first edge 18 of
at least some of the spacer elements 17 is provided on the surface with a plurality
of concavities 20 that, in the condition where the spacer elements 17 are attached
to the first walls 11 or to the second walls 14, define with the latter corresponding
apertures 21 for the passage of the heat-carrying fluid.
[0102] In possible variant embodiments, not shown in the drawings, it can be provided that
the spacer elements 17 are provided with a plurality of passage apertures made through
in the thickness of the spacer element 17.
[0103] The presence of apertures 20 allows to make the passage of the heat-carrying fluid
in the hollow space 15 uniform and homogeneous, in order to optimize the heat exchange
toward the second compartment 16.
[0104] According to possible formulations of the present invention, the spacer elements
17 associated with the first walls 11 and the second walls 14, which are vertical
during use, have the first edge 18 disposed resting against the second walls 14. Thanks
to the presence of the concavities 20, this solution allows to reduce the usable contact
surface between the spacer elements 17 and the second lateral walls 14a, in practice
also reducing the thermal transmission of heat or cold, from the first lateral walls
11a.
[0105] According to possible formulations of the present invention, the spacer elements
17 associated with the first upper walls 11b and the second upper walls 14b, that
is, with the first walls 11 and the second walls 14, during use located in the upper
part of the second compartment 16, have the first edge 18 disposed resting against
the first walls 11.
[0106] This solution allows to obtain a good distribution of the heat over the whole surface
of the second upper walls 14b. It is in fact known that the heat-carrying fluid at
a higher temperature tends to move into the upper parts of the hollow space 15 and
therefore in this case toward the second upper walls 14b.
[0107] By disposing the spacer elements 17 with the concavities facing against the first
upper walls 11b it is therefore possible to increase the stratification effect of
the heat-carrying fluid toward the second upper wall 14b, in practice increasing the
heat exchange toward the second compartment 16.
[0108] According to other forms of embodiment, possibly combinable with the forms of embodiment
described here, the spacer elements 17 associated with the first lower walls 11c and
the second lower walls 14c, or to the first walls 11 and the second walls 14, during
use located in the lower part of the second compartment 16, have the first edge 18
resting against the first walls 11. In this way it is possible to obtain a good distribution
of heat over the whole surface of the second lower walls 14c. For the same consideration
described above, the heat-carrying fluid at a higher temperature will tend to move
toward the second lower walls 14c. By disposing the spacer elements 17 with the concavities
facing against the first lower walls 11c it is therefore possible to increase the
stratification effect of the hot heat-carrying fluid toward the second lower wall
14c.
[0109] According to other forms of embodiment of the present invention, for example shown
in figs. 6 and 7, the connection edges between the second upper walls 14b and the
second lateral walls 14a are provided with partial obstruction members 31 which from
the end edge of the second lateral walls 14a extend in the hollow space 15 toward
the first upper walls 11b.
[0110] According to possible variant embodiments it can be provided that the partial obstruction
members 31 are also connected along the connection edges between the second lower
walls 14c and the second lateral walls 14a, and extend from the end edge of the second
lateral walls 14a, in the hollow space 15, toward the first lower walls 11c.
[0111] According to a possible implementation of the present invention, the partial obstruction
members 31 comprise a barrier, a blade, a section bar that extends for the whole length
of the connection edge between the second lateral walls 14a and the second upper walls
14b and/or the second lower walls 14c.
[0112] According to another aspect of the present invention, the partial obstruction members
31, together with the second upper walls 14b and/or the second lower walls 14c, define
box-like cavities 32 open toward the first upper walls 11b and the first lower walls
11c. The partial obstruction members 31 define, in the hollow space 15 and with the
first upper wall 11b and the first lower wall 11c, a passage gap 33 for the heat-carrying
fluid which can be distributed along the first lateral walls 11a and the second lateral
walls 14a.
[0113] The box-like cavities 32 allow to obtain a stratification effect of the heat-carrying
fluid in correspondence with the surfaces of the second upper walls 14b and/or the
second lower walls 14c, in order to optimize the efficiency of heat exchange with
the latter and consequently with the ambient of the second compartment 16.
[0114] According to possible variant embodiments of the present invention, shown for example
in fig. 8, it can be provided that the second compartment 16 defined by the second
walls 14 can be divided into a plurality of rooms 34, in this case shown in the drawings,
divided into three rooms 34.
[0115] To this purpose, it is provided to insert partition walls 35 in the second compartment
16, configured to determine the division into a plurality of rooms 34.
[0116] In possible implementations of the invention, not shown in the drawings, the partition
walls 35 can be directly connected to the second walls 14 by means of brackets, threaded
connection members, pegs, or similar or comparable connection members.
[0117] With reference to the form of embodiment shown in figs. 8 and 9, the partition walls
35 can be directly connected to the first walls 11 passing through the second walls
14 and the hollow space 15.
[0118] According to this form of embodiment, the partition walls 35 can be provided with
at least a passage aperture 36, in this case a plurality of passage apertures 36,
configured to allow the passage through them of the heat-carrying fluid and prevent
the interruption of the flow through the hollow space 15.
[0119] The passage apertures 36 can be served by a closing member 37 provided to partly
or totally close the passage apertures 36 of the heat-carrying fluid. The closing
member 37 can be driven manually or automatically.
[0120] According to some forms of embodiment it can be provided that the closing member
37 comprises a holed plate, a shutter or occlusion elements able to at least partly
regulate the gap of the passage aperture 36. An example embodiment of the closing
member 37 is shown in fig. 10, in which the closing member 37 comprises a plate 40
provided with through holes 41 and selectively positionable to modify the passage
of the heat-carrying fluid.
[0121] The presence of the closing member 37 allows to regulate the delivery of heat-carrying
fluid that laps the second walls 14 and consequently allows to modulate in a desired
and differentiated manner the air-conditioning of the rooms 34. To this purpose is
is advantageous to provide that the position of the closing member 37 is determined
by a command and management unit suitable to regulate the entity of choking of the
flow of heat-carrying fluid, depending on the temperature set by the user.
[0122] According to one aspect of the present invention, in correspondence to the partition
walls 35 the first walls 11 are provided with structural elements 38, for example,
beams and/or pillars, in which the partition walls 35 are connected.
[0123] In the case where the structural elements 38 extend toward the hollow space 15 too,
in practice interrupting the continuity thereof, it can be provided that these are
also provided with through apertures 39 through which to make the heat-carrying fluid
circulate. In this case too, the presence of closing members 37 can be provided to
regulate the flow of heat-carrying fluid through the hollow space 15. In this form
of embodiment it can be provided that the through apertures 39 are located aligned
with the passage apertures 36 of the second walls 14.
[0124] In a possible form of embodiment, shown for example in figs. 11 and 12, it is provided
that the air-conditioned building 10 is provided with several first compartments 12
divided by first lateral walls 11a, in this case having the function of partition
walls between the two first compartments. Inside each of the first compartments 12
the second walls 14 are positioned to define respective second compartments 16.
[0125] In this form of embodiment, between the first walls 11 and the second walls 14 two
hollow spaces 15 are defined in which the heat-carrying fluid is made to flow.
[0126] In a possible form of embodiment, not shown in the drawings, it can be provided that
each hollow space 15 of the second compartments 16 is connected to its own air-conditioning
apparatus 13. In this way, by intervening directly on each air-conditioning apparatus
13 it is possible to differentiate the air-conditioning effect of each second compartment
16.
[0127] In an alternative solution, shown for example in figs. 11 and 12, each hollow space
15 is fluidically connected to the other and to a single air-conditioning apparatus
13. In this case, a possible form of embodiment provides that the first lateral wall
11a, with the function of partition wall between the second compartments 16, is provided
with one or more through apertures 42 provided to put the hollow spaces 15 of the
two compartments into fluidic communication.
[0128] In this form of embodiment too, it can be provided that closing members 37 are associated
with the through apertures 42 and are provided to regulate the flow of heat-carrying
fluid from one hollow space 15 to another in a desired way, with a similar function
to that described with reference to figs. 8 to 10.
[0129] According to the form of embodiment shown in fig. 11, the building 10 according to
the present invention comprises a single habitable floor 47 in which the two hollow
spaces 15 are present located adjacent to each other and on the same habitable floor
47. The air-conditioning apparatus 13 is configured to regulate the thermal state
only of the heat-carrying fluid present in the hollow spaces 15 of said habitable
floor 47.
[0130] In the solution shown in fig. 12, the through apertures 42 are made in the thickness
of structural elements of the partition wall, in this case in correspondence to a
beam of the latter.
[0131] Fig. 13 shows a possible form of embodiment of an air-conditioned building 10 comprising
two habitable floors 47, each provided with its own first compartment 12. In each
first compartment 12 second walls 14 are positioned, provided to define a second compartment
16 for each first compartment 12.
[0132] In each of the second compartments 16 partition walls 35 can be provided, as described
with reference to figs. 8, 9 and 10.
[0133] In this case too, between the first walls 11 and the second walls 14 the hollow spaces
15 are defined for the passage of the heat-carrying fluid.
[0134] With reference to fig. 13, each hollow space 15 is connected to its own air-conditioning
apparatus 13 provided to regulate the air-conditioning modes of its second compartment
16.
[0135] According to a possible form of embodiment, for each hollow space 15 of each habitable
floor 47 there is a respective air-conditioning apparatus 13 to regulate the thermal
state of the heat-carrying fluid only of one habitable floor 47. In this way the onset
of upward or downward thermal flows is prevented inside the hollow spaces 15 between
the compartments of several habitable floors, which can generate stratifications of
heat-carrying fluid in the upper or lower parts of the building. Indeed stratifications
of heat-carrying fluid would not be able to guarantee a uniform distribution of heat
in the second compartments and would cause the onset of hot zones and/or cold zones
even inside the same second compartment.
[0136] However, it is not excluded that, in other forms of embodiment, the same air-conditioning
apparatus 13 is adopted to feed the flow of heat-carrying fluid through both the hollow
spaces 15.
[0137] Another form of embodiment is shown in fig. 14, in which the construction of an air-conditioned
building 10 is provided, according to the present invention, with a gable roof.
[0138] In this case too, the air-conditioned building comprises a plurality of first walls
11, at least two of which define the first upper walls 11b that are disposed angled
with respect to each other according to the inclination of the gables of the roof.
[0139] The first walls 11 together define the first compartment 12 in which the second walls
14 are located, distanced from the first walls 11. The second walls 14 also comprise
at least two upper walls 14b disposed distanced from the respective first upper walls
11b.
[0140] The first walls 11 can be made in a known way, for example comprising concrete, prefabricated
panels, wood panels, thermal and/or acoustic insulating materials, or by-products
thereof
[0141] An example embodiment of the first walls 11 is shown in fig. 5, in which they comprise
an external layer of plaster 43, a first panel 44, a layer of insulating material
45 and a second panel 46.
[0142] According to possible solutions, and where provided, the partition walls 35 can also
be made in the same way as the first walls 11.
[0143] In possible solutions the layer of insulating material 45 can be made of rockwool,
polyurethane foam or other insulating materials.
[0144] By adopting a suitable thickness and type of insulating material 45, it is possible
to limit and prevent heat losses, that is, either cold or hot toward the outside,
concentrating the thermal exchange of the heat-carrying fluid toward the second walls
14.
[0145] According to other forms of embodiment the first panel 44 and the second panel 46
can be made of wood or by-products of wood, such as for example panels of LDF, MDF,
HDF, OSB or suchlike.
[0146] In the same way the second walls 14 can be made with panels of plasterboard, plaster
fibers, wood or wood by-products.
[0147] According to a possible form of embodiment of the present invention, at least some
of either the first walls 11 or the second walls 14 can be made of a material transparent
to visible light, for example glass or plastic materials, such as polycarbonate. In
particular, it can be provided that at least one first transparent wall 11 is located
facing at least one second transparent wall 14 in order to allow visibility through
them. According to this form of embodiment, the first walls 11 and the second walls
14, or at least one of them, can be made with one or more insulating glass units.
[0148] The air-conditioned building 10 can also include, in a known way, also a bearing
structure comprising for example foundations, pillars, support beams or substantially
known structural elements.
[0149] According to possible formulations of the present invention it is possible to provide
that the air-conditioned building is provided with one or more detection devices provided
to control at least the temperature and humidity of the heat-carrying fluid that circulates
through the hollow space 15.
[0150] Merely by way of example it can be provided that the detection devices are associated
in correspondence to the first aperture 26 and the second aperture 27 provided in
the hollow space 15 so as to control the conditions of introduction and expulsion
of the heat-carrying fluid into and from the hollow space 15.
[0151] A possible solution of the present invention provides that the detection devices
comprise at least a detection probe to detect the humidity of the heat-carrying fluid
so as to control its conditions.
[0152] In possible implementations of the present invention it can be provided that the
detection devices are provided to detect the ambient conditions of the second compartment
16, and in particular at least one of either temperature or humidity.
[0153] The data detected by the detection devices can be processed by a control and management
unit able to suitably command the activation and functioning modes of the air-conditioning
apparatus 13 also depending on the particular needs of the users, which can be set
for example through a thermostat or a command unit.
[0154] According to forms of embodiment of the present invention, the method for air-conditioning
the air-conditioned building 10 provides to make the heat-carrying fluid circulate
inside the hollow space 15 in a controlled intensity mode, that is ,speed, temperature
and humidity of the flow of heat-carrying fluid.
[0155] According to formulations of the present invention it is provided to introduce or
aspirate the heat-carrying fluid from the first aperture 26 or from the second aperture
27.
[0156] In particular, if a heating action of the second compartment 16 is provided, the
heat-carrying fluid is introduced through the first aperture 26, located in an upper
part of the hollow space 15, whereas heat-carrying fluid is taken in from the second
aperture 27, in a lower part of the hollow space 15.
[0157] Due to the action of the convective motions that occur inside the hollow space 15
because of the different temperatures at which the second walls 14 can be found, the
heat-carrying fluid generates flows, shown for example in fig. 1 with a continuous-line
arrows. The heat-carrying fluid transmits heat by conduction to the second walls 14
which in their turn transmit the heat, substantially by irradiation, inside the second
compartment 16.
[0158] If a cooling action of the second compartment 16 is provided, the heat-carrying fluid
is introduced through the second aperture 27 which is disposed in the lower part of
the hollow space 15, and heat-carrying fluid contained in the hollow space 15 is taken
into the upper part of the latter.
[0159] In this case too convective motions are established, shown for example in fig. 1
with broken-line arrows, which allow to make the cooling conditions inside the second
compartment 16 uniform.
[0160] Both the heating and the cooling processes performed as described above allow to
make the temperature uniform on all the internal surfaces of the second walls 14,
even in the presence of big differences in heat/cold of the different external surfaces.
[0161] In some formulations of the present invention and during the normal functioning cycle,
it is provided that the plant can have a controlled and automated inverse circulation
for a short period. In other words it can be provided that during the heating and/or
cooling operations of the air-conditioned building 10 the inversion is commanded of
the delivery and discharge of the heat-carrying fluid through the first 26 and the
second 27 apertures.
[0162] With the present invention, all the second walls 14, which in practice make up the
perimeter of one or more rooms of the air-conditioned building 10, become radiant
bodies for the internal compartment to be heated or cooled. The thermal flux, heat
or cold, is distributed homogeneously for the whole surface extension of the second
compartment 16, preventing the onset of unwanted air flows inside the compartment
which are unpleasant for the people residing there.
[0163] By adopting first walls 11 with high acoustic insulation toward the outside it is
possible to make the air-conditioning apparatus 13 function with a reduced difference
in temperature with respect to the temperature desired inside the second compartment
16.
[0164] Merely by way of example, it can be provided that the difference in temperature between
the heat-carrying fluid and the ambient temperature of the second compartment 16 is
comprised between 2°C and 5°C.
[0165] It must also be added that with the air-conditioning method according to the present
invention, as well as heating and cooling, it is also possible to maintain the ambient
inside the second compartment 16 at a constant temperature both in summer and in winter
without entering into contact with the heat-carrying fluid that is made to circulate
in the hollow space 15. In this way all movements of air which form with traditional
air-conditioning apparatuses, for example fans, are eliminated, or thermal-convective
movements deriving from different heating of the walls, floors and ceilings.
[0166] Moreover, thanks to the reduced thermal inertia and to the low differential between
the temperature of the heat-carrying fluid and the ambient of the second compartment
16, the method according to the present invention can be efficiently used by means
of heat pumps in order to contain air-conditioning costs. From numerous tests carried
out it has emerged that the heat-carrying fluid during movement generates an insurmountable
barrier in the hollow space 15 that prevents external atmospheric agents from influencing
the internal ambient.
[0167] Fig. 15 shows a graph comparing the air-conditioning method according to the present
invention, the reference curve for which is curve 1 with a continuous line, and other
substantially known air-conditioning methods.
[0168] In particular, fig. 15 shows the trends of modes of:
- floor heating, curve 2 with a broken line;
- air heating, curve 3 with a double line;
- radiator heating, curve 4 with dots.
[0169] As can be seen by comparing the graphs, the air-conditioning mode of the present
invention allows to obtain a uniform temperature distribution along the entire height
of the room, or of the compartment in which it is adopted. Other air-conditioning
modes, on the other hand, have very variable temperature gradients along the height,
for example between floor and ceiling, which as well as generating unwanted air flows,
can also cause the generation of humidity or mold on the walls.
[0170] It is clear that modifications and/or additions of parts may be made to the air-conditioned
building and corresponding air-conditioning method as described heretofore, without
departing from the field and scope of the present invention.
[0171] It is also clear that, although the present invention has been described with reference
to some specific examples, a person of skill in the art shall certainly be able to
achieve many other equivalent forms of air-conditioned building and air-conditioning
method, having the characteristics as set forth in the claims and hence all coming
within the field of protection defined thereby.