Progress of Closed-Cycle OTEC and Study of a New Cycle of OTEC
OTEC has the advantages of large reserves, renewable, stable and clean without pollution. However the smaller ocean temperature-difference results in the lower thermal efficiency. Based on the research of Rankine cycle, Kalina cycle, Uehara cycle, a new closed-cycle system (GuoHai cycle) has been studied, this cycle system uses ammonia-water mixtures as working medium. Indirect regenerative cycle and poor ammonia solution regenerative cycle is adopted in order to improve the thermal efficiency of the system.
Hao Zhang, Yang Fu and Zhong Tang
W. M. Liu et al., "Progress of Closed-Cycle OTEC and Study of a New Cycle of OTEC", Advanced Materials Research, Vols. 354-355, pp. 275-278, 2012