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Re: [TRNSYS-users] Type 52

To: David BRADLEY <d.bradley@tess-inc.com>, trnsys-users <trnsys-users@cae.wisc.edu>
Subject: Re: [TRNSYS-users] Type 52
From: Jean Marais <jeannieboef@gmail.com>
Date: Tue, 6 Nov 2012 14:45:45 +0100
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When no air (or very little) passes through the coil (type 52b), the outlet air temp becomes that of the coil water. I have a problem that the type is internally calling a routine for the wet-bulb calculation which is outside of range (Temp more than 70 degC). This error is TERMINATING my simulation although I only get it once. I also get a saturation warning everytime condensation occurs on the coil when I use it as a cooling coil. I have been advised to recompile this type with some adjustments, but I have no resources to do so. Please advise.

Jean Marais

TRNSYS Message 114 : The utility routine PSYCHROMETRICS, which calculates the thermodynamic properties of moist air, has been called with a wet bulb temperature above the maximum wet bulb temperature for the given pressure. Please check the routine which calls the PSYCHROMETRICS routine for possible sources of errors. Reported information : Error 114

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