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Re: [TRNSYS-users] A question

To: "Liu, Ming - liumy008" <Ming.Liu@postgrads.unisa.edu.au>, trnsys-users@engr.wisc.edu
Subject: Re: [TRNSYS-users] A question
From: "Jeff Thornton" <thornton@tess-inc.com>
Date: Wed, 27 Feb 2008 10:05:53 -0600 (CST)
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<In my model, I want to calculate how long the temperature of a zone is
kept under 20OC during a day. Does anyone have any idea about that? Thanks
in advance.>

Use a couple of simple equations:

Equations 2
T_Zone=[56,X]
LowTemp_Time=LT(T_Zone,20)

Where T_Zone is connected to the output from the Type 56 zone model
representing the zone you want to watch.  Then simply integrate the
LowTemp_Time variable in an integrator, print it and you'll be able to see
how many of the day you're below 20.

Jeff


Jeff Thornton
President - TESS, LLC

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Madison WI 53719 USA

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E-mail: thornton@tess-inc.com
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