Iceman717
01-08-2013, 08:52 AM
I came across a plant where they run their blast freezer at -35 F with one screw. I'd probably want my evaporator temp at -45 to -50 for that temp. That's implying about 14"hg suction. One compressor pushing it all the way to head pressure.
Has anyone seen it done this way? I was talking to an engineer who told me that lately, if the target temp is above -40 that they find it's cheaper to single stage than to deal with a booster compressor and intercooler.
Seems like a bit of a stretch to me. Ending up with compression ratios well over 14:1.
Kids these days, I swear... :D
Has anyone seen it done this way? I was talking to an engineer who told me that lately, if the target temp is above -40 that they find it's cheaper to single stage than to deal with a booster compressor and intercooler.
Seems like a bit of a stretch to me. Ending up with compression ratios well over 14:1.
Kids these days, I swear... :D