[TRNSYS-users] Psychometrics problem

[Michael Diekerhof]

David,
thanks for this fast reply. Since I connected the pressure as well 
(don´t know how i could miss this) there are no more warnings due to 
psychometrics. Just at the end there´s one warning left, which doesn´t 
sound good:

/*** Warning at time       :      8760.000000//
//    Generated by Unit     :     6//
//    Generated by Type     :   112//
//    Message               : Fan mass balance failed during 35040 
timesteps. Please check the connections./

Do you have any idea what in detail could be wrong ? I made the 
connections for dry bulb, humidity and pressure.

Thanks in advance!
Best,
Michael




Am 12/3/2012 6:39 PM, schrieb David BRADLEY:
> Michael,
>   You need to connect the pressure as well. It is surprising that you 
> always get the warning. I would understand if you get that warning for 
> some timesteps (maybe even enough timesteps to go over the allowable 
> number of warnings in a simulation. However, if you get that warning 
> at every single timestep, there might be something else wrong.
> Regards,
>  David
>
>
> On 12/3/2012 05:39, Michael Diekerhof wrote:
>> Dear all,
>>
>> I´m using type 112 as a fan for an air-Source heat pump (type401).
>>
>> Between Type 15(weather) and type 112 i made the following connections:
>>
>> Dry bulb temperature => Inlet temperature
>> Humity ratio => Inlet air humidity ratio
>>
>> But unfortunetaly I do always receive the following warning which 
>> results in an Error:
>>
>> /"The referenced UNIT has called the PSYCHROMETRICS routine witha 
>> humidity ratio above the saturation humidity ratio for the given dry 
>> bulb temperature.
>> /
>> /The air was assumed saturated at the given dry bulb temperature and 
>> the humidity ratio set for this condition/"
>>
>> Does anyone has a suggestion to solve this problem ?? I appreciate 
>> any idea :)
>>
>> Best,
>> Michael
>>
>>
>> _______________________________________________
>> TRNSYS-users mailing list
>> TRNSYS-users at cae.wisc.edu
>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>
> -- 
> ***************************
> David BRADLEY
> Principal
> Thermal Energy Systems Specialists, LLC
> 22 North Carroll Street - suite 370
> Madison, WI  53703 USA
>
> P:+1.608.274.2577
> F:+1.608.278.1475
> d.bradley at tess-inc.com
>
> http://www.tess-inc.com
> http://www.trnsys.com

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