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How does a heat pump work?

Country/Region china
Company SIRAC Refrigerating & Air Conditioning Equipments Co.,Ltd
Categories Water To Water Geothermal Heat Pump
Telephone +86-757-85122493
ICP License Issued by the Chinese Ministry
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    How does a heat pump work?

    How does a HPWHwork?
    Heat pump isa promising technology that uses the same mechanical principlesas refrigerators and air conditioners to generate hot water.Unlike conventional electricity and fossil-fuel-fired waterheaters, heat pump takes heat from the surrounding air/water/soil and transferit to the water in the tank.
    The heat pump works by taking heatfrom the surrounding air/water/soil and using it to heat low pressure liquidrefrigerant in the heat pump’s evaporator, vaporizing the liquid.The refrigerant then passes through the compressor, which raisesthe refrigerant pressure and thus the temperature as well. Theheated refrigerant gas passes through the heat pump condenser,where it gives off its heat to the water and condenses backinto the liquid state.The liquid refrigerant now passed throughan expansion valve or capillary where the pressure is reduced and the cyclestarts over.
    Heat pumps mainly consist of a compressor,fan (applicable to air to water), evaporator and condenser. The compressor requireselectricity to compress the refrigerant and vaporize it, andthe fan requires a small amount of electricity to continuallyblow air across the evaporator coils when the unit is operating.The only electricity cost is the operation of the compressorand the fan in order to collect the free heat and pump it tothe hot-water.
    Why a heat pumpin preference to a traditional water heater
    Heat Pump /TraditionalWater Heaters Economy Comparisons
    Heating 1000kg water from 20oC to 55oC requires35000Kcal
    Heater TypeCoal BoilerFuel BoilerGasResistanceElectric-boosted SolarHPWH
    Energy SourceCoalDieselGasElectricitySolar & ElectricityElectricity & Air
    PollutionVery HighHighModerateNoneNoneNone
    Life Span5 years8 years8 years8 years8 years15 years
    Hazard
    ModerateHighVery HighModerateModerateNone
    Fuel Value5000kcal/kg8550kcal/kg26000kcal/m3860kcal/kwh860kcal/kwh860kcal/kwh
    COP value
    0.550.650.650.963.33.8
    Heat Value
    2750kcal/kg6630kcal/kg16900kcal/m3826kcal/kwh2838kcal/kwh3268kcal/kwh
    Unit Energy Cost
    ¥0.70/kg¥3.50/kg¥12.8/m3¥0.66/kwh¥0.66/kwh¥0.66/kwh
    Energy Consumption
    12.7kg6.3kg2.07m342.37kwh12.3kwh10.7kwh
    Energy Cost per ton
    ¥8.89¥22.05¥26.51
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