... application. The advanced thermodynamic cycle is deemed as the kernel theory for OTEC. In order to improve the thermal efficiency of the cycle, a technical solution of absorption and temperature change occurrence can be adopted. There are two basic research methods. One is the use of absorbing working fluids...

... in heat exchanger can be decreased at this cycle. As a result, the thermal efficiencies of the cycle at the maximum power output are almost same. The working fluid flow rates at the maximum power output of the combination of working fluids are different. The pressures of the working fluids...

... respectively in two Rankine cycles. Turbine power and thermal efficiency of Double Stage-Rankine cycle is found to be larger than these of Single-Rankine cycle. Moreover, the maximum output power of Double Stage-Rankine cycle is found to be larger than both these of Single-Rankine cycle and Kalina cycle...

... temperature difference renewable energy diagram thermal efficiency condenser heat flow rate Research on Ocean Thermal Energy Conversion using HFC245fa as Working Fluid Takafumi Morisaki and Yasuyuki Ikegami Institute of Ocean Energy, Saga University Saga-shi, Japan ABSTRACT Ocean Thermal Energy...

... Experimental Study of OTEC using Ammonia/Water Mixture as Working Fluid Yasuyuki Ikegami, Junichi Inadomi,Takeshi Yasunaga and Hiroyuki Asou, Institute of Ocean Thermal Energy, Saga University (IOES), Saga, Japan ABSTRACT Recently, to improve the thermal efficiency of OTEC system, utilization...

... on the environment and can be semi- permanently utilized (Heydt, 1993). However, compared with the thermal power generation using fossils or nuclear energy, whose thermal efficiency is about 50% to 60%, the thermal efficiency of the OTEC is very low about 3% to 4% (Uehara, 1980). Further, the temperatures...

...°C, cold seawater temperature 7°C, length of cold seawater pipe 800m. Although the thermal efficiency of the OTEC cycle is improved by using binary mixtures, the heat transfer area per net power output is not decreased because the heat transfer coefficient of binary mixtures is lower than...