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Some factors affecting heat transfer of double-effect evaporator
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For a double-effect evaporator, the heat transfer function is essential. If the evaporator cannot transfer heat, then a pile of scrap copper and rotten iron is worthless. In the actual use process, there may be many factors that will affect the heat transfer of the double-effect evaporator. Below we will introduce in detail which factors will affect the heat transfer of the double-effect evaporator:

Generally analyzed from the perspective of thermodynamics, the refrigerant that is throttled and under the evaporation pressure Po is usually in a liquid state or a mixed state of vapor and liquid when it enters the evaporator. The refrigerant absorbs the heat of the cooling medium through the heat transfer partition wall, which reduces the temperature of the cooling medium, while the refrigerant liquid boils and vaporizes into dry saturated steam or superheated steam at a relatively stable low temperature and low pressure, after passing through the output evaporator It is sucked in by the refrigerator.

To put it another way, from the perspective of heat transfer, although there are many forms of evaporators, they are generally divided into wall heat exchangers, that is, the refrigerant and the cooling medium exchange heat on both sides of the heat exchange wall. On the refrigerant side, the refrigerant absorbs heat through a vaporization phase change. On the other side, the cooling medium always flows continuously through the heat exchange partition and is cooled or liquefied, or frozen after releasing sensible heat or total heat according to the process requirements.

Under normal circumstances, the evaporator is the main heat exchange device in the refrigeration device. Like the condenser, the heat transfer pier of the evaporator is related to the heat exchange area, heat transfer temperature difference, and heat transfer coefficient. For the selected evaporator , the heat exchange area is certain, so in addition to appropriately increasing the heat transfer temperature difference of the evaporator, the main thing is to try to improve the heat transfer coefficient of the evaporator. The increase of the heat transfer coefficient depends on factors such as the thermal physical properties of the hot and cold fluid, the flow conditions, the characteristics of the heat transfer surface, and the structural performance of the hairdryer. Similarly, analyzing these factors is helpful to take corresponding measures in the design, installation, management , operation, and maintenance of the evaporator to improve its heat transfer effect.

The above are some of the factors that will affect the heat transfer of the double-effect evaporator. Generally speaking, the factors that affect the heat transfer of the evaporator are inevitable, but we can try to reduce the heat transfer to the evaporator in daily use. Factors affecting heat.

For more product information, click here: Industrial Evaporator Coils.


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Some factors affecting heat transfer of double-effect evaporator
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