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Passive Cooling System



    Mr. David Bradley

    First i'd like to thank you for taking some of your time to answer my
question on TRNSYS use.

    Attached to this e-mail i'm sending you a brief  diagram of the roof
zone i'm trying to simulate on TRNSYS. This a passive cooling system that
uses evaporative heat on the exterior surface of the roof as a product of
the saturation presures difference between the air and water. I consider
that adding the evaporative heat as "another gain" in the prebid interfase
wouldn't be completly right, considering that this heat is not a zone gain.

    In the attached diagram the interior and exterior surface temperatures
are not included and so are not the coduction heat on the roof, but they are
taken into account when simulating. So are other details, excluded for
easier understanding of the diagram.

    Thanks in advance for all your help

             Javier Lopez

    If any other on this list  beside you know anything that can be helpful
to solve my problem, i'd be glad if I could get a reply to this e-mail from
you.

PS: I'm a  TRNSYS 14.2 version user

Attachment: Experimental Module.jpg
Description: JPEG image