(19)
(11)EP 2 530 312 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
30.07.2014 Bulletin 2014/31

(43)Date of publication A2:
05.12.2012 Bulletin 2012/49

(21)Application number: 12004204.9

(22)Date of filing:  31.05.2012
(51)Int. Cl.: 
F03D 11/00  (2006.01)
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30)Priority: 03.06.2011 US 201113152783

(71)Applicant: Gamesa Innovation & Technology, S.L.
31621 Sarriguren (ES)

(72)Inventor:
  • Sabhapathy, Peri
    48170 Zamudio (Bizkala) (ES)

  


(54)Cooling and climate control system and method for an offshore wind turbine


(57) A system and method to cool the air inside the nacelle and the heat generating components, particularly of an offshore wind turbine is presented. The ambient air first enters an air handling unit near the tower bottom where the airborne water droplets and salt particles are removed. The clean air is then compressed adiabatically, thus increasing the dew point temperature of the water vapor in the air. The high pressure, high temperature air from the compressor is then cooled and dehumidified in a sea water-to-air heater exchanger or an air-to-air heat exchanger. The high pressure air from the heat exchanger then enters the turbine at the tower bottom and flows up to the nacelle where it is allowed to expand adiabatically in a duct. The duct helps direct the resulting cold air over the heat generating components. The cold air can also used to cool these components internally. The warm air ultimately exits the nacelle at the rear top.