Abstract
A humidification-dehumidification and vapor compression refrigeration (HDH-VCR) cycle has been integrated to meet the freshwater, space conditioning and hot water demands with the minimum floor space. In the refrigeration cycle and heat pump cycle, heat absorption and heat rejection are the desired outputs respectively. In the proposed HDH-VCR, a water-cooled condenser for humidification and an evaporator for dehumidification are simultaneously used to generate the desired outputs. Thermodynamic simulation and analysis have been focused on studying the effect of evaporator temperature, hot water temperature, atmospheric temperature, and atmospheric relative humidity (RH) on specific outputs, energy performance ratio (EPR), and exergy efficiency of the HDH-VCR unit. The objective of the current work is to maximize the EPR by optimizing the evaporator temperature. The resulted EPR at 50 °C of hot water temperature is 1.80 and 0.86 for cycle and plant respectively.
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