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Vapour compression-based conventional cooling systems are not applicable in humid climates, due to its moisture removal capability below the dew point of conditioned air, which consume excess work in the form of electrical power supply for running vapour compressors. Furthermore, the CFC-based refrigerants in vapour compression-based traditional HVACs are responsible for the depletion of ozone layer to contribute global warming. Along with the exhaustion of natural energy sources, the use of VCR-based air conditioners also causes the emission of greenhouse gases such as CO2. As compared to them desiccant dehumidification and cooling can provide significant energy-saving and environmental advantages. This is because the desiccant cooling is a thermally operated technology mostly makes use of industrial waste heat or freely available renewable solar heat. In the present article, the desiccant cooling systems have been discussed from the prospectus of its progressive developments, working principle, future research and development work needed.
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Bhabhor et al. (2019) studied this question.
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