Dossier Océan et énergie - Énergie Thermique des Mers
Sommaire IOA News Letters
PERFORMANCE ANALYSIS OF OTEC USING NEW CYCLE WITH ABSORPTION AND EXTRACTION PROCESS
Haaruo Uehara, Yasuyuki Ikegami and Tetsuya Nishida
Performance Analysis of an Ocean Thermal Energy Conversion (OTEC) System using a new cycle with absorption and extraction process are carried out. A new cycle utilizes an ammonia-water mixture as the working fluid. An OTEC system using a new cycle is consists of an evaporator, a separator, two turbines or two stage turbines, a reheater, a heater, an absorber, a condenser, an auxiliary condenser and a pump. The thermal efficiency of OTEC system using a new cycle with absorption and extraction process can reach up to 5.23 percent when the inlet warm sea water temperature of 28¢XC and the inlet cold sea water temperature of 4¢XC . The thermal efficiency of OTEC system using a new cycle is 1.038 times as large as one of the Kalina (5.04 percent) cycle and is 1.31 times as large as one of Rankine (3.98 percent).