Questions regarding the estimation of heat exchange area in the custom design of tube-and-plate heat exchangers
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I would like to ask experts: when designing tube-and-plate heat exchangers, in some examples given in books, the first step in the design process (estimating the heat transfer area) involves calculating the average heat transfer temperature difference based on pure counterflow, while in others it is calculated using a corrected average heat transfer temperature difference. So, how should one choose? This post was last edited by hhhh568 on 2009-4-18 22:05.]
If it is pure counterflow, there is no need to multiply by a correction factor; in the case of cross-flow, a correction factor must be applied before estimating the heat transfer area
You can check Perry’s manual; it’s in Chapter 11, which correction factors need to be selected and what values to use approximately
It’s in Perry’s manual; take a good look at it and choose the one that suits you