Abstract
Energy consumption by cooling and desalination systems is huge and increasing with growing demand. The integration of two or more energy systems to form a hybrid system and work on a single energy source is one of the strategies for better energy utilization. This paper introduces a novel hybrid cooling-desalination system. The cooling unit is based on the ejector refrigeration cycle (ERC) and combined with water-heated humidification dehumidification (HDH) desalination cycle to make the hybrid system. A validated model of the hybrid system is developed and evaluated using the Engineering Equation Solver (EES) software. The basic ERC is analyzed with R134a as the refrigerant at different operating temperatures. The results show that the increase in the generator temperature improved the entrainment ratio (w) and the coefficient of performance (COP). The COP and entrainment ratio also increases with the increase in evaporator temperature. The increase in the condenser temperature resulted in a decrease in COP and entrainment ratio. The gain output ratio (GOR) of the HDH system is improved by 20%. This is due to the increase in the minimum temperature of the HDH system by 15 °C as a result of the hybrid configuration. This led to a 17% enhancement on the overall energy utilization factor.
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