X-Message-Number: 6041 Date: Mon, 8 Apr 1996 02:06:57 -0700 (PDT) From: Doug Skrecky <> Subject: Should cryostats be turned into pressure cookers? At -195.8 F the boiling point of liquid nitrogen is actually lower than it needs to be for cryopreservation. If the boiling point could be increased boiloff would be reduced and storage costs lowered. If the flowrate for the gas produced by boiling is limited sufficiently the pressure inside a cryostat will increase till the flowrate increases to match the boiloff. This increased pressure will also increase the boiling point of liquid nitrogen itself, increase cryostat temperatures, reduce net boiloff and lower storage costs. Should cryostats be turned into pressure cookers? Any comments? Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=6041