Power generation from low enthalpy geothermal fields by design and selection of efficient working fluids for organic rankine cycles
The efficient power generation from low enthalpy geothermal fields through design and selection of working fluids for organic Rankine cycle (ORC) processes was examined using a systematic methodology based on the design of optimum working fluid candidates using a computer aided molecular design method. The process performance of the working fluids was evaluated using ORC process simulations. A suitable performance index was developed to allow consideration of variable heat source conditions for the ORC process. The proposed approach was illustrated via a case study involving low-enthalpy geothermal fields with a broad range of representative temperature and flowrate characteristics. The results highlighted useful performance trade-offs among the considered working fluids under various geothermal field conditions. This is an abstract of a paper presented at the 7th European Congress of Chemical Engineering-7 and the 19th International Congress of Chemical and Process Engineering CHISA (Prague, Czech Republic 8/28/2010-9/1/2010).
19th International Congress of Chemical and Process Engineering, CHISA 2010 and 7th European Congress of Chemical Engineering, ECCE-7
complete list of authors
Papadopoulos, AI||Stijepovic, M||Linke, P||Seferlis, P||Voutetakis, S