文档介绍：Source:,,heatexchangers,fans,pumps,pipe,duct,,water,,ponents,designpractices,,fortairconditioningindustrydominatesoverindustrialrefrigeration,includingthenumberofunitssoldandinstalled,arysales,,industrialrefrigerationisalivelybusinessofsignificantsize,providesmanytechnicalchallengestoitspractitioners,’sareaoftechnicalactivityandthuslosingtheinputfromrelatedfields,,-assembledpackagereadyforconnectiontoelectrical,water,,built-,condensers,,pressor,condenser,and/,,?°C(60°F),therangeextendsdowntoabout-60°or-70°C(-76°or-94°F).Attemperaturesmuchlowerthanabout-70°C(-94°F)anotherindustrycalledcryogenicstakesover,producingandusingliquefiednaturalgas,liquidnitrogen,liquidoxygen