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Modeling/design

Modeling/design

Modeling/design

(OP)
Question on desing/classification of a heat exchanger:

For commercial ice machine unit evaporators, with an ice cube forming mold. (for something like a Manitowoc or scottsman like unit) How would one model/design such a system(going back to fundamentals). Cross-flow or counter flow. In addition, how might one model account for the build up of ice?

thanks!

RE: Modeling/design

Hmmm... there seem to be a lot of info missing.  I'd lot at your application... you say you are making ice cubes, so you might want a mechanical system that can sense when the cubes are frozen and remove them from a tray.  
The heat exchanger might be an additional step that takes away some of your efficiency... unless I'm not understanding what you are doing or how.  

www.eypmcf.com

RE: Modeling/design

Most evaporators are not considered parallel flow or counter flow since there is a phase change.  You can model this evaporator as constant temperature on the refrigerant side (even though it is probably a DX unit with some superheat).  On the water side it would be convection while the water is a liquid and then conduction when the water has turned to ice.  Depending on your geometry (cube, tube, or other shape) you can easily model your heat transfer.

RE: Modeling/design

(OP)
GEPMAN

THIS IS A GOOD APPROACH, MAKES TOTAL SENSE INTUITIVELY! THANKS

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