heat recovery from R744 based refrigeration system

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heat recovery from R744 based refrigeration system ( heat-recovery-from-r744-based-refrigeration-system )

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As per heat source and sink Operating cycle Vapor compression cycle Vapor absorption cycle Heat Pump Application Heat pump Dryer Heat pump water heater Figure 2 Classification of heat pump Air to air Air to water Water to air Water to water Ground to air Ground to water Heat Source Primary Secondary Tertiary Air to air heat pump utilizes air as heat source and heat sink mediums, similarly there are five other types based on combination of heat source and sink mediums. Primary heat pump is the one which utilizes natural currents (air, ground, solar etc) as heat source, while secondary heat pump utilizes waste heat from some process as a heating source. Tertiary heat pump is one which is in series with primary or secondary heat pump to upraise the level of energy. 1.1.3 Why heat pump Coefficient of performance for the conventional heating system (electrical resistance heating coils) is considered to be 1, so obtained heating effect is exactly the same as that of consumption of electrical energy. However operating with heat pump system makes it possible to have COP>1. 2

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