Influence of refrigerant heat

1, the steam flow and the velocity of

in the condenser, refrigerant vapor come in contact with the wall of low temperature heat release after aggregation is a layer of liquid membrane, and under the action of gravity downward. Liquid membrane has the thermal resistance of thermal conductivity, its thickening will lead to thermal resistance increases, the refrigerant heat transfer is reduced. Therefore, when the refrigerant vapor and condensate film towards the same direction, the liquid film and wall heat transfer faster respectively, increased heat transfer system apply. And when the opposite direction of refrigerant steam and condensate film movement, reduce or increase the heat transfer coefficient will depend on the flow rate of the refrigerant vapor. Slow velocity is small, the liquid membrane activity, thickened liquid membrane, heat transfer coefficient; Velocity is larger, the liquid film will be refrigerant vapor with upward activity, caused by wind, the heat transfer coefficient increases.

2, heat transfer surface roughness

the heat transfer surface roughness has a great influence on the thickness of the condensate film. When the surface is very rough, liquid membrane resistance of the activity can add, and then slow activity, liquid membrane thickening, so reduce the heat transfer coefficient. According to the test, the heat transfer surface is rough, serious can make the heat transfer coefficient by 20% - 30%. So, the heat transfer surface should be smooth and clean.

3, refrigerant vapor in the air or other no non-condensable gas

in the refrigeration system, there are always some air and refrigerant and smooth oil under high temperature decomposition of non-condensable gas, the non-condensable gas entering the condenser, the attached near the condensate film, the refrigerant vapor partial pressure decreases, and then affect the refrigerant vapor agglutinate exothermic, the heat transfer coefficient is decreased obviously. Therefore, it is necessary to adopt method, to prevent the air into the refrigeration system, and in a timely manner will not non-condensable gas discharge in the system.

4, refrigerant vapor smooth oil is contained in the

when the refrigerant vapor contains smooth oil, smooth oil will also form the oil film on heat transfer surface, add the thermal resistance of thermal conductivity, reduces the heat transfer coefficient. The oil to agglutinate exothermic effects of refrigerant vapor depends on the degree of smooth oil dissolved in the refrigerant. About the freon refrigeration system, when the oil concentration less than 6% ~ 7%, don't consider it's influence on the heat transfer, but beyond this limit, coefficient of heat transfer would be reduced. Therefore, in the refrigeration equipment to set up the effective oil equipment respectively, to reduce the oil content of refrigerants.

5, the structure of the condenser method

the structure of the condenser, the side of the refrigerant vapor heat transfer is also different. But no matter what method of condenser, heat transfer coefficient to progress, it is necessary to ensure that can quickly the condensation on the surface of the heat transfer fluid to clean, and to ensure that the heat transfer surface is smooth and clean.

refrigerant gas has become a standardized way of dealing with start capacitor suppliers.

The expert engineers of Hangzhou E cool refrigeration Co.,Ltd always develop with utmost precision so that all quality standards are met during the production. we are looking forward to becoming a trusted supplier of customers. visit us at Arkool Refrigeration.

Although the core manufacturing factor of air conditioner capacitor is high technology, smart customers know that we need to enhance our material quality and producing standard.

Hangzhou E cool refrigeration Co.,Ltd, a manufacturer of refrigerant gas, might emphasize less hassle or less wasted time rather than emphasizing reliability or quality.

air conditioner capacitor can be applied in different ways as start capacitor suppliers.