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Subject: Heat pipes

Heat pipes

From: Bas van Velzen <eland>
Date: Tuesday, November 22, 1994
Heat pipes prove to be a hot topic, Cal Herrmann replied me last week
the following:

    A heat pipe as usually made is a closed tube containing a liquid
    that can boil at the temperature of the warm end, and condense at
    the temperature of the cool end.  It is a passive transport of heat,
    differing from a refrigeration mechanism which actively transports
    heat (and can pump the heat from a lower to a higher temperature).
    The tube of a heat pipe may contain a wick, to return the condensed
    liquid from the cool end to the warm end:  this is not necessary if
    the cool region is above the warm region, since the fluid can drip

When I asked him for some further information he replied me by sending
this *huge* list of articles he got from a query on:

    < [at] UCCMVSA__UCOP__EDU>
    Search request: F TW HEAT PIPE
    Search result:  151 citations in the CC article database

Thank you Cal. Heated up by all this attention I looked up heat pipe in
the Encyclopaedia Britannica: an article in Micropeadia: volume 5 page
785 where I found the word in English for this much discussed device:
"heat exchanger", which is the precise translation of the word in dutch:
"warmte wisselaar". So now we're home again. Anyone who would like to
have the list Cal Herrmann sent me please ask at <eland [at] knoware__nl>. We
at Amsterdam Municipal Archive will investigate this subject further
since it may be an energy saver even in moderate climates.

Bas van Velzen
Jonge Eland papierestauratie
Oude Looiersstraat 65-67
1016 VH Amsterdam
tel 31 20 623 79 89
fax 31 20 627 32 23
VeRes (Dutch Association of Professional Restorers)
postbus 11503
1001 GM Amsterdam

                  Conservation DistList Instance 8:39
               Distributed: Wednesday, November 23, 1994
                        Message Id: cdl-8-39-005
Received on Tuesday, 22 November, 1994

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