Abstract
This paper described a performance analysis of the power system using Uehara cycle utilizing warm wastewater as a heat source. Uehara cycle utilizes ammonia/water mixtures as working fluid. The facters in performance analysis consist of the inlet temperature of warm wastewater, the mass fraction of ammonia and each overall heat transfer coefficient of the heat exchangers. In this analysis, the thermal efficiency of Uehara cycle becames larger when the inlet temperature of warm wastewater is increased. Also, the thermal efficiency of Uehara cycle becames larger when the mass fraction of ammonia is increased because the rate of bleed of the turbine is increased. The thermal efficiency of Uehara cycle is compared with that Carnot cycle.
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