X-Message-Number: 6057 From: Brian Wowk <> Date: Thu, 11 Apr 1996 11:58:30 -0500 Subject: Pressure Cooker Cryonics Doug Skrecky asks whether it would be possible to increase the pressure at which cryonics patients are stored, thereby increasing the storage temperature and reducing LN2 boiloff. While this is theoretically possible, the added costs and problems of pressurized storage units would vastly exceed any savings from reduced LN2 utilization. The critical point of nitrogen (highest temperature at which boiling occurs) is about -150'C (still mighty cold) at a pressure of 30 atmospheres-- eqivalent to 1000 feet underwater! *************************************************************************** Brian Wowk CryoCare Foundation 1-800-TOP-CARE President Human Cryopreservation Services http://www.cryocare.org/cryocare/ Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=6057