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Adding Fins to a Heat Exchanger
July 1, 1999
Helpline provides the readers ofProcess Heatingwith a chance to solve problems that crop up in their heat processing applications.
When does it become economical to enhance the surface or add fins to a shell-and-tube heat exchanger? How do you know whether the investment is worth it? I have a gas-to-gas, single-pass, counterflow exchanger currently. -- D.L.
The shell-side heat transfer coefficient must be considerably less than the tube side for this to be beneficial. Then, the increase in the shell-side pressure drop must be considered in the analysis. -- Brian Emery, Industrial Heat Recovery Equipment, (800) 422-1333.
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