An Experimental Study of a Two-Phase Closed Thermosyphon Rankine Cycle Performance

Abstract

Decreasing the heat rejection of any power cycle is a promising agent in improving the overall performance and decreasing global warming. This can be done by different methods such as heat exchangers or thermosyphons. Water is used as a working fluid. The present experimental work used water as a working fluid and investigated the effects of filling ratio (27.2%≥Fr≥9%), total nozzle exit area to the turbine inlet area (4.3%≥Ar≥2.5%), and condenser cooling water flow rate (16LPM≥(V ) ≥8LPM). The results showed that the optimumfilling ratio is approximately 13.6% and the output power increases with increasing condenser cooling water flow rate. Also, the maximum output power produced at minimum area ratio but the optimum turbine rotational speed at area ratio of 3.1%. In

Simulation of Thermosyphon Rankine Engine

“…Habieeb et al, [7] presented experimental work to study the temperature distribution along the TSR and the effect of filling ratio, turbine exit area, and cooling water flow rate on both turbine rotational speed and exit power, using water as working fluid. The experiment consists of a galvanized steel tube, an electric heater, a constant head tank, a turbine and rotor based on the Hero reaction turbine principle, and measurement devices.…”