Global Patent Index - EP 3704356 A1

EP 3704356 A1 20200909 - METHOD AND DEVICE FOR CONVERTING THERMAL ENERGY INTO MECHANICAL OR ELECTRICAL ENERGY

Title (en)

METHOD AND DEVICE FOR CONVERTING THERMAL ENERGY INTO MECHANICAL OR ELECTRICAL ENERGY

Title (de)

VERFAHREN UND VORRICHTUNG ZUR WANDLUNG VON THERMISCHER IN MECHANISCHE BZW. ELEKTRISCHE ENERGIE

Title (fr)

PROCÉDÉ ET DISPOSITIF SERVANT À CONVERTIR UNE ÉNERGIE THERMIQUE EN UNE ÉNERGIE MÉCANIQUE OU ÉLECTRIQUE

Publication

EP 3704356 A1 (DE)

Application

EP 19730251 A

Priority

  • AT 1542018 A
  • AT 2019060179 W

Abstract (en)

[origin: WO2019227117A1] The invention is intended to increase the energy efficiency and cost efficiency of Clausius-Rankine cycles, in particular for utilizing low-temperature heat, and to avoid the disadvantages of the processes that have become known. The heat-absorbing part of the cycle is provided with branches (24), which branch off flows from the main flow of the medium used in the cycle, connect them to mixers (31), in which the branched-off flows are mixed with the exhaust steam from exhaust-steam lines (20) of the expansion engines or the turbines (19), and these mixed steam flows are reintroduced into the cycle by way of cold exhaust-steam lines (21). A significant increase in the energy efficiency is obtained when using media of the "dry" fluid class in the cycle, by virtue of the fact that the flows mixed in evaporate completely, in return for which there is overheating in the main flow, and a greater flow of steam is available to the medium-pressure turbine (19MD) for expansion, which leads to extra power at the turbines of 10 to 15%.

IPC 8 full level

F01K 7/34 (2006.01); F01K 7/36 (2006.01); F01K 7/38 (2006.01); F01K 19/10 (2006.01); F01K 25/10 (2006.01)

CPC (source: EP)

F01K 7/34 (2013.01); F01K 19/10 (2013.01); F01K 7/36 (2013.01); F01K 7/38 (2013.01); F01K 25/103 (2013.01)

Designated contracting state (EPC)

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 state (EPC)

BA ME

DOCDB simple family (publication)

WO 2019227117 A1 20191205; AT 521050 A4 20191015; AT 521050 B1 20191015; EP 3704356 A1 20200909

DOCDB simple family (application)

AT 2019060179 W 20190528; AT 1542018 A 20180529; EP 19730251 A 20190528