Under what circumstances are double-shell heat exchangers used
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For the selection of the equipment now, a double-shell heat exchanger has been chosen. Under what circumstances is a double-shell heat exchanger used? Is it due to the flow rate or something else? . .
It mainly involves increasing the flow rate in the shell side and reducing the flow area in the shell side
The process calculation formula is used to determine a value of φΔt; typically, the design specifications for heat exchangers require that this value be no less than 0.8. If it is lower than this value, it is necessary to consider increasing the number of shell passes or using multiple heat exchangers in series, so as to make the heat transfer process more similar to counterflow