Working principle of heat pumps are used to exchange heat with the refrigerant medium (water, air), similar to the air conditioning system refrigerant is sucked from the air to heat the local terrain evaporator (Evaporator) and then the refrigerant to flow to the compressor (Compressor) refrigerant and compression, there will be high pressure and temperature, and then the refrigerant to flow to the condenser (Condenser) to heat transfer to water. When heat loss is condensing refrigerant and liquid flow to the reduction valve. The pressure reducing valve (Expansion Valve) the pressure will decrease the pressure and temperature of the refrigerant down. Refrigerant pressure reducing valve through a mixed flow of heat to evaporate the next machine. Operation of the heat pump to do this as the cycle until the desired heat. In the trials will vary. Volumetric water flow rate value to see the relationship toward the COP and.
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