Will increasing the circulation volume of the refrigerant improve or worsen the cooling effect?
Thread Content
Will increasing the circulation volume of the refrigerant improve or worsen the cooling effect? For example: I’m having trouble with cooling efficiency right now; I want to increase the circulation rate of the refrigerant. Will this improve or worsen the cooling effect? Is there a critical value? What would happen if the flow rate of the mother liquor that needs to be cooled is reduced? Help!
Increasing the circulation volume can have two effects: one is an increase in the heat transfer temperature difference (the temperature at the refrigerant outlet decreases)； On the other hand, it increases the heat transfer coefficient on the refrigerant side (indirectly increasing the overall heat transfer coefficient)
I’m sorry, I don’t understand. Increasing the circulation rate of the refrigerant – is that good or bad for the substance I want to cool?
Both methods can reduce the temperature of the heat transfer fluid, but since the equipment remains unchanged, the heat exchange area stays the same; once a certain value is reached, increasing the flow rate further will not result in much change in the outlet temperature of the heat transfer fluid. Mainly, it’s necessary to conduct some calculations, and in addition, temperature control should be added at the heat transfer fluid outlet and the refrigerant inlet.
If the temperature difference is smaller, the results will definitely be better, but if the cooling capacity isn’t sufficient in the first place, it will still be useless