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首页> 外文期刊>Energy Conversion & Management >Multi-objective optimization and exergoeconomic analysis of a continuous solar-driven system with PCM for power, cooling and freshwater production
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Multi-objective optimization and exergoeconomic analysis of a continuous solar-driven system with PCM for power, cooling and freshwater production

机译：PCM电力，冷却和淡水生产连续太阳能驱动系统的多目标优化和exergo经济分析

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摘要

In this article, three different modes of a novel integrated system would be evaluated by the application of high temperature Thermal Energy Storage (TES) to produce electricity, cooling, and freshwater. Freshwater is produced using the reverse osmosis (RO) desalination unit while Absorption Refrigeration Cycle (ARC) provides cooling. In this system, a high temperature Phase Change Material (PCM) is utilized to make the system working continuously even at nights. The output heat of gas turbine (GT) is also recovered utilizing the Organic Rankine Cycle (ORC). According to exergoeconomic analysis, the efficiencies, exergy destructions and product cost rates are computed. The multi-objective optimization has also been performed considering six different ORC working fluids and the changes in the direct normal irradiation of a city in Iran. In the trigeneration condition, the optimum values of the GT's compressor pressure ratio and ORC's turbine inlet pressure were obtained 9.06 and 3300 kPa, respectively. The exergy efficiency of the suggested system at the optimal condition is computed to be 14.40%, while that of energy is 40.52% with the total product cost rate of 30.524 $/GJ. The produced cooling capacity of the absorption system is also 1.62 MW whereas the output amount of freshwater and electricity for the users are about 5209.5 m3/day and 2.42 MW, respectively. The Levelized Cost of Electricity (LCoE) is also calculated to be 0.2341 $/kWh, which shows promising economic performance.
机译：在本文中，将通过应用高温热能存储（TES）来评估新型集成系统的三种不同模式，以产生电力，冷却和淡水。使用反渗透（RO）海水淡化单元产生淡水，同时吸收制冷循环（ARC）提供冷却。在该系统中，利用高温相变材料（PCM）来使系统即使在夜间连续工作。燃气轮机（GT）的输出热也利用有机朗肯循环（ORC）回收。根据exergo经济分析，计算效率，漏洞破坏和产品成本率。考虑到六种不同的ORC工作流体以及伊朗城市的直接正常照射的变化，还考虑了多目标优化。在Trigeneration条件下，获得GT的压缩机压力比和兽人的涡轮机入口压力的最佳值分别为9.06和3300kPa。建议系统在最佳状态下的漏洞效率计算为14.40％，而能源的效率为40.52％，总产品成本率为30.524 $ / gj。吸收系统的产生的冷却能力也是1.62 MW，而用户的淡水和电力的输出量分别为约5209.5 m3 /天和2.42兆瓦。电力（LCoE）的均衡成本也计算为0.2341 $ / kWh，这表明了经济绩效有前途。

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