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Liquid-separated condensation is an emerging enhanced heat transfer method that simultaneously increases the condensation heat transfer coefficient and reduces the pressure drop. This method was applied to shell-and-tube condensers used in organic Rankine cycle systems. The optimized liquid-separated thermodynamic states of organic fluids which maximize the average condensation heat transfer coefficients...
ORC (organic Rankine cycles) are promising systems for conversion of low temperature geothermal energy to electricity. The thermodynamic performance of the ORC with a wet cooling system is analyzed here using hydrocarbon working fluids driven by geothermal water from 100 °C to 150 °C and reinjection temperatures not less than 70 °C. The hydrocarbon working fluids are butane (R600), isobutane (R600a),...
This paper proposed a computation program to predict the in-tube thermodynamic performance of the LSC (liquid–vapor separation condenser). The refrigerant circuit of the LSC was then optimized using the Penalty Factor with the predicted results. The proposed program was used to calculate a case and an optimized tube pass strategy was obtained under a fixed condition. Higher heat transfer coefficient...
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