Re: [TRNSYS-users] type 33g - enthalpy and relative humidity known

[Heloise PELEN <heloise.pelen@etamine.coop>]

Hello,

 

We’ve checked the sourcecode (and tested it in the simulation) and in fact the type 33h (not 33g as I wrote) does compute what we want.

It’s just a problem a label : the input which must be linked to “relative humidity” is labeled “humidity ratio”.

 

Knowing this, our problem is solved.

 

Regards,

Héloïse Pelen

 

De : Heloise PELEN [mailto:heloise.pelen@etamine.coop]
Envoyé : lundi 3 décembre 2012 14:01
À : 'trnsys-users@engr.wisc.edu'
Cc : Estelle MARTIN
Objet : [TRNSYS-users] type 33h - enthalpy and relative humidity known

 

Hello,

 

We are trying to compute the wet bulb temperature of an air. We know the enthalpy and the relative humidity of this air.

There is a type 33 which seems able to do this : it is labeled “Physical Phenomena\ Thermodynamic Properties \ Psychrometrics \ Enthalpy and relative humidity known”.

 

So we take this “type33h” but the only inputs available are enthalpy and humidity ratio, instead of relative humidity. This seems quite odd since this is what the “humidity ratio and enthalpy known” type 33 is supposed to do.

 

Has anyone encountered this kind of problem ?

We’re running on Trnsys 17.01.0016.

 

Thanks a lot !

Best regards,

Héloïse Pelen

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