Abstract In this study, the performance of a new configuration of the solar-based desiccant air conditioning system integrated with a humidification-dehumidification desalination unit was assessed thoroughly. The main novelty of the study stemmed from the fact that the regeneration air was preheated by a photovoltaic/thermal solar collector unit before it entered the desiccant wheel and the considered solar system was improved by the phase change material to satisfy the heating demands of air conditioning system at nighttime. The effects of the regeneration air flow rate and temperature on the cooling COP of the air conditioning system, freshwater production, and thermal and electrical efficiencies of the photovoltaic/thermal system were examined for a typical day in August. Results showed that the maximum COP of the air cooling system and the best value of distillate water, for an air mass flow rate of 0.78 kg/s were about 0.411and 4.9 l/h, respectively. The maximum electrical power generation capacity and electrical efficiency of the photovoltaic collector were obtained 0.72 kWh, and 13.7%, respectively, at 13 : 00. The heat capacity and efficiency were approximately 3.39 kWh and 65%, respectively at 12 : 00. Finally, the maximum thermal energy, which was delivered to the air conditioning system by the phase change material was about 0.89 kWh.

中文翻译：

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基于PCM的太阳能辅助除湿空调系统结合加湿-除湿脱盐机组的性能评估

摘要 在这项研究中，对一种新配置的太阳能除湿空调系统与加湿-除湿海水淡化装置相结合的性能进行了彻底评估。该研究的主要新颖之处在于再生空气在进入干燥剂轮之前由光伏/热太阳能集热器单元预热，并且考虑的太阳能系统通过相变材料进行改进以满足空调的加热需求夜间系统。在 8 月的一个典型日子里，研究了再生空气流速和温度对空调系统的冷却 COP、淡水产量以及光伏/热力系统的热效率和电效率的影响。结果表明，当空气质量流量为 0.78 kg/s 时，空气冷却系统的最大 COP 和蒸馏水的最佳值分别约为 0.411 和 4.9 l/h。光伏集热器的最大发电量和电效率在13:00时分别为0.72kWh和13.7%。在12:00时热容量和效率分别约为3.39kWh和65%。最后，相变材料输送到空调系统的最大热能约为0.89 kWh。