hundred
13-06-2009, 12:45 PM
Now.I am designing a thermal shock chamber.Its size is 1m x 1m x 2m internal space ,PU wall 5" ,Pull down time 30 m. from 25 c to -45 c .I did calculate heat load is 19 kw.I will use a R508b / R404a cascade.I used duplex software find compressor size.I doubt about result from software at compressor displacment of low stage ang high stage uneven because I notice most cascade system most use even .Anyone please advise me.