File talk:Refrigeration PV diagram.svg
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the diagram looks very nice but if I remember right there is no heat transverd to the cycle within the expansion valve, the state change here is only a preasure drop with the associated temperature drop.
Heat is only supplied within the evaporator (Horizontal bottom line)
- Thanks, Benbehr. After reviewing the literature, you've convinced me to remove "Heat in" during throttling. I've updated the graphic. cmglee (talk) 12:40, 22 September 2015 (UTC)