Liquid-Cooled Condensers with No Condensate Holdup

1 LIQUID-COOLED CONDENSERS WITH NO CONDENSATE HOLDUP 

Once-through coolant is by far the most common choice. An approximate analysis for a condenser that has a single pass on the coolant side is presented in Chapter 24 of reference 1, and will not be repeated here. It involves the following simplifying assumptions  

Heat storage in the heat exchanger metal is negligible. 

Although these reduce the complexity somewhat, we are still left with the job of solving partial differential equations. Perhaps the easiest to read descriptions of their solutions are those by HempeP and by Gould. A much simpler model, largely empirical, has been proposed by Thal-Larsen. Since most liquid-cooled condensers are fairly fast with time constants in the range of 10-60 seconds, we will not pursue Aeir dynamic equations further. For important apphcations, where subcooling may be of concern, one should probably resort to simulation. 

The literature on subcooled condensers is very sparse one paper has been published by Luyben, Archambault, and Jauf ct, and another by Tyreus.  

---