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To encourage a wider application of air source heat pumps (ASHPs) to colder areas due to the advantage of a higher energy efficiency, adopting cascade air source heat pumps (CASHPs) is a promising option. When CASHPs are operated in heating mode, frosting/defrosting has been problematic. However, the defrosting methods commonly used by conventional ASHPs cannot be directly applied to CASHPs. Therefore,...
Applying cascade air source heat pumps (CASHPs) in colder areas is a promising option to encourage a wider application of air source heat pumps (ASHPs) due to their advantage of a higher energy efficiency. When CASHPs are operated in heating mode, frosting/defrosting has been problematic. This paper proposed a novel thermal energy storage (TES) based reverse cycle defrosting method for CASHPs which...
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