Investigation on the possibility of substitution of compression cooling cycle with a solar absorption cooling cycle at the hot climate regions of Iran

In this study, the compression cooling cycle was simulated by EES software for the purpose of cooling at the hot climate regions of Iran. In these simulations, different compressors with different efficiencies were considered. The working fluid was R134a which is more compatible with the environment. The calculations were conducted for the compression cooling cycle and both the coefficient of performance (COP) and the consumption of electrical energy in the compressors were determined for a four-story building located at Bandar Abass with the construction area of 300m2. At the second step, the possibility of substitution of compression cooling cycle with a solar absorption cooling cycle was studied and the required surface of solar collectors to supply the required heat for the generator in the absorption chiller was calculated. The calculations showed that with the utilization of solar collectors with appropriate surfaces and supplying the required thermal energy for the absorption cooling cycle with the free of cost solar energy, it is possible to decrease the consumption of electrical energy for the cooling of buildings at the hot climate regions of Iran to zero.