Question

Possible shell and tube heat exchanger have 9 tubes? How can found the leaks in shell...

Possible shell and tube heat exchanger have 9 tubes?



How can found the leaks in shell and tube heat exchanger ?


In shell and tube heat exchanger should we keep hot fluid in tube or cold fluid and why?

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Homework Answers

Answer #1

For maximum efficiency, 9 tubes are hard to space it evenly inside a circle. Evenly spaced tubes lead to a better efficiency.

Leakages in shell and tube heat exchanger can be found as:

By filling the tube with salt water and check for TDS increase

By looking for color change.

By filling tube with dyed water and then looking where might the color come across.

The fluid that has least temperature difference with ambient temperature is kept in shell and the other fluid is in tube. Thus, higher temperature difference will be created between the two working fluids for a better heat exchange.

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