The energetic and exergetic performance of an updated ORC (organic Rankine cycle) is investigated. The thermal … efficiencies of the ORC at different heat source temperatures of about 100, 90, 80, and 70 °C are explored. The thermodynamic … irreversibility that takes place in the evaporator, condenser, turbine, pump, and separator is revealed. The ORC feasibility for low …

The fundamentals of a newly constructed kW-scale Organic Rankine Cycle (ORC) system on the use of R123 were illustrated … examine the heat transfer and power conversion processes of the ORC. Unlike water pumping, the vapor pressure of the pumped … fluid in the ORC system was much higher, and cavitation was more easily facilitated. A technology was introduced to address …

A naturally-controlled organic Rankine cycle (ORC) without negative work is proposed. Compared with conventional ORCs … the pump can be avoided. A possible application of the gravity driven ORC for combined heat and power generation is … power efficiency of the novel ORC is adequate for low temperature applications. With an expander efficiency of 75 …