[TRNSYS-users] Type 52

[jeannieboef]

Funny thing, David...I spotted the problem on the train home.  
Although, the fatal error clearly indicated the type, it had nothing  
to do with the type directly (as I thought because I'm on the sixth  
copy of this system and the others didn't have this issue...also I  
extensively tested one system on one zone before I started expansion).  
I've had these "false" msgs before. I was feeding the type a negative  
flowrate for my air, I believe.

Thanks for getting back to me.

Sent from my iPhone

On 06.11.2012, at 18:40, David BRADLEY <d.bradley at tess-inc.com> wrote:

> Jean,
>  Do you have a relatively simple project that exhibits the problem?  
> It would be helpful in debugging the Type.
> Best,
> David
>
>
> On 11/6/2012 07:45, Jean Marais wrote:
>> 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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> David BRADLEY
> Principal
> Thermal Energy Systems Specialists, LLC
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