subject: Simpson Qiu-gram: Summary of energy saving heat pump tower - ground source heat pump, energy - heat pump industry [print this page] Winter cold and wet, cold and warm air by the confrontation of North and South, with nearly 800 hours of temperatures mostly between -5 ~ 6 , low temperature, rain Uninterrupted, the average humidity is 85%, and latent heat (wet case of condensation frosting the air) source low-grade heat can be harmful, resulting in heat exchanger frosting, blocking air flow loss of performance and result in frequent defrosting heat pump does not work, heating coefficient of performance (COP) fell only 1.5 or so, followed supplemented by high quality electric source high energy consumption as an auxiliary heat source, can not adapt to low temperature and humid climatic conditions in normal operation. Air Source Heat Pump is designed mainly narrow fin summer, summer and winter can not be fixed and the same efficiency. As the cost and other reasons, the ambient temperature and the chiller refrigerant evaporation temperature difference over t = 10-12 . Particularly through the winter for low back downstream into the efficiency of heat transfer, throttling refrigerant cooling tube after the narrow channel fin in the first frost to meet with humid air, blocking the air circulation heat exchanger to form a gate frost and block the vicious cycle of t = 15-20 .
Simpson Qiu-gram: Summary of energy saving heat pump tower - ground source heat pump, energy - heat pump industry
