Two-Phase Heat Exchanger

Need more process details - fluids, temperatures, etc.

i would just like to know in general not for any particular fluid or temperature. I mean just the advantages and disadvantages of using a two phase fluid. will it be of any use?

The coefficient for pure water is typically good; therefore, it will likely be used in lieu of a two phase fluid.

The coefficient for glycol/water mixtures (ethylene, propylene, TEG, etc.) & oils (vegetable, lube, etc.) are typically much lower; therefore, a two phase replacement fluid may be beneficial.

I hope this helps.