What should be the minimum temperature difference between the circulating water temperature and the temperature of the material to be cooled in heat exchanger design?
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What should be the minimum temperature difference between the circulating water temperature and the temperature of the material to be cooled in heat exchanger design? For example, if the temperature of the water entering the cycle is 30 degrees and that of the water returning is 38 degrees, what is a reasonable minimum temperature to which the material being cooled can be reduced?
It is generally considered to be 5 degrees higher than the temperature at the return water outlet; it’s just personal preference! Of course, by focusing on energy savings rather than equipment investment, this temperature difference can be further reduced!