Date: Thu, 22 Jun 2000 07:17:05 -0400 From: David Jones <dej@inode.org> To: freebsd-hardware@freebsd.org Subject: Liquid cooled Message-ID: <00062207215406.00242@coup.inode.org>
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Be careful when liquid-cooling the payload. Remember, the payload will be evacuated. Water boils at just over 0 C in a vacuum. If you use water cooling, then you'd get water vapor all over the place upon evacuation, with possible condensation everywhere. Any cooling liquid would have to be kept in a closed system. How is the payload to be powered up? Does it run in "standby mode" until and during the launch, only to go into mission mode for those five minutes? Is there an external signal to indicate mission mode? If not, then the power will be dissipated while the system is on the launch pad, and no amount of liquid will help. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the messagehome | help
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