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Reasons for determining the temperature of graphite heat exchangers
Release time:
2022-06-07
In fact, the evaporation temperature and condensation temperature are affected by a variety of factors and other factors, this issue is difficult to discuss. Under certain conditions, a correct judgment can be made that the evaporation temperature and condensation temperature depend on the heat exchange efficiency of the evaporator and graphite heat exchanger.
Reasons for determining the temperature of graphite heat exchangers.
In fact, the evaporation temperature and condensation temperature are affected by a variety of factors and other factors, this issue is difficult to discuss. Under certain conditions can make a correct judgment, evaporation temperature and condensation temperature depends on the evaporator and graphite heat exchanger heat exchange efficiency.
Graphite heat exchanger heat exchange efficiency is high, you can increase the evaporation temperature by increasing the condensing temperature, reduce the condensing temperature (this situation increase or decrease is based on certain fixed working conditions). Dry heat exchanger and tube and fin heat exchanger area is to improve heat transfer efficiency, under certain conditions to increase the evaporation temperature and condensation temperature.
The temperature of the condensing system of the graphite heat exchanger is influenced by the outdoor wet bulb temperature. In the case of water-cooled systems, the outdoor wet bulb temperature can be reached. The cooling water volume and the refrigerant carry out the temperature data usually 5 degrees. For molded condensers, the refrigerant condensation temperature is related to the heat transfer characteristics and temperature of the refrigerant, and the cooling temperature is usually uncontrollable.
The temperature of the vapor is related to the requirement to proceed. The refrigerant vapor temperature for air conditioning units is usually 2 degrees. If refrigeration is done, the temperature difference is usually taken to be 10 degrees for heat transfer to proceed. If the required storage temperature is -18 degrees, the vapor temperature is usually -28 degrees. It can be said that the evaporation temperature to carry out is generally based on the actual engineering needs and process design requirements to determine.
The use of high-flow condenser or high-flow condenser circulating pump to improve the design value of the evaporation temperature. Cold water temperature data can only be determined by the refrigeration system index (process technology conditions). In terms of commissioning, increase (or reduce) the opening of the expansion valve can increase (or reduce) the evaporation temperature; increase (or reduce) the load factor of the host can reduce (or increase) the evaporation temperature.
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