EP 2212524 A1 20100804 - CASCADED ORGANIC RANKINE CYCLE (ORC) SYSTEM USING WASTE HEAT FROM A RECIPROCATING ENGINE
Title (en)
CASCADED ORGANIC RANKINE CYCLE (ORC) SYSTEM USING WASTE HEAT FROM A RECIPROCATING ENGINE
Title (de)
ABWÄRME VON EINEM HUBKOLBENMOTOR VERWENDENDES IN KASKADE GESCHALTETES ORGANIC RANKINE CYCLE (ORC-)SYSTEM
Title (fr)
SYSTÈME DE CYCLE DE RANKINE ORGANIQUE (ORC) EN CASCADE UTILISANT DE LA CHALEUR RÉSIDUELLE D'UN MOTEUR ALTERNATIF
Publication
Application
Priority
US 2007021318 W 20071004
Abstract (en)
[origin: WO2009045196A1] A method and system for operating a cascaded organic Rankine cycle (ORC) system (100) utilizes two waste heat sources from a positive-displacement engine (106), resulting in increased efficiency of the engine (106) and the cascaded ORC system (100). A high temperature waste heat source from the positive-displacement engine (106) is used in a first ORC system (102) to vaporize a first working fluid (118). A low temperature waste heat source from the positive-displacement engine (106) is used in a second ORC system (104) to heat a second working fluid (130) to a temperature less than the vaporization temperature. The second working fluid (130) is then vaporized using heat from the first working fluid (118). In an exemplary embodiment, the positive-displacement engine (106) is a reciprocating engine. The high temperature waste heat source may be exhaust gas and the low temperature waste heat source may be jacket cooling water.
IPC 8 full level
F01K 25/08 (2006.01); F01K 1/00 (2006.01); F01K 23/04 (2006.01); F02G 5/04 (2006.01)
CPC (source: EP US)
F01K 23/065 (2013.01 - EP US); F01K 25/08 (2013.01 - EP US); F02G 5/04 (2013.01 - EP US); F02G 2262/00 (2013.01 - EP US); Y02E 20/14 (2013.01 - EP US); Y02T 10/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2009045196 A1 20090409; EP 2212524 A1 20100804; EP 2212524 A4 20120418; JP 2010540837 A 20101224; US 2010263380 A1 20101021
DOCDB simple family (application)
US 2007021318 W 20071004; EP 07873010 A 20071004; JP 2010527922 A 20071004; US 73802810 A 20100414