kooltek
02-11-2009, 05:43 AM
Have been reading alot on CO2 pack systems. Just starting to make appearnces in U.S. thanks to Hill-Phoenix. I see many supermarket chains in UK and germany and other countries using CO2 now, even in the trans-critical area, I have a question:
In a system designed for trans-critical operation, when the ambient temp. drops to 5deg to 10 deg C does the discharge gas actually condense in the gas cooler and operate as a sub critical system? And how does the high pressure expansion valve react under these conditions? I figured someone in this forum may know about these systems. Thanks
In a system designed for trans-critical operation, when the ambient temp. drops to 5deg to 10 deg C does the discharge gas actually condense in the gas cooler and operate as a sub critical system? And how does the high pressure expansion valve react under these conditions? I figured someone in this forum may know about these systems. Thanks