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Thread: About liuid line pressure drop.
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11-03-2009, 08:56 AM #1
About liuid line pressure drop.
As we know, the discharge line pressure drop will affect the condensing pressure, so we try all kinds of methods to reduce the pressure drop in discharge line. Even if we add 15 kPa to the discharge line, the condensing pressure will increase quite much.
My question is:
What about the liquid line pressure drop? Is it as sensitive as the discharge pressure drop? We know there is TXV in liquid line, if the pressure drop in liquid line increase , will it balance so that the TXV pressure will reduce, so the pressure drop will not affect the condensing pressure so much.
Now I am selecting a PHE as the ECO, it's in liquid line,I don't know 33kPa pressure is acceptable, but I know if it is in discharge line, it's not acceptable for me.
Hope for your answer!
Wilson
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