Discussion on heat exchanger location
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Why, when liquid is drawn from the bottom of a tower or vessel through a heat exchanger, should the heat exchanger be located close to and below the tower or vessel? This is the only instruction in the book I read, but for some reason, I’m not sure why. Could someone with more knowledge please explain it?
If it’s not located below, how can full liquid level be ensured? How can a subfilled fluid achieve good heat exchange performance? How can we ensure the pump operates properly?
In my opinion, it should be positioned near the upper plate of the heat exchanger, so as to ensure a fully filled condition as well as a driving force for circulation.