> This reminds me of a story <abe simpson voice> . . . back in the old days > . . . </abe simpson voice> Some sights that ran large s/360's and > s/370's > actually had these boxes plumbed into the duct work for heating, i.e. to > help heat a building or assist in heating, etc.. > I can remember reading a couple of articles about it in Computer World > when it was much thicker than it is today. > Steve G.
>From 1985 to 1997 I worked in a building that did something close to that. Office areas were heated or cooled by heat pumps above the drop ceiling. The heat pumps extracted heat from or dumped heat to a mixture of water and ethylene glycol circulated through pipes. The machine room air was cooled by Liebert units that dumped heat to the same system of pipes. In the earlier part of that period we had we had a Liebert chiller supplying cold water to a big mainframe and dumping heat to the water/glycol mixture. There was a dry tower on the roof used to warm or cool the water/glycol mixture as needed. There was also a gas furnace in the basement to warm the water/glycol mixture in very cold weather. The building management claimed to achieve significant energy savings in cold weather because the waste heat from the machine room enabled the office heat pumps to extract heat from relatively warm liquid. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
