[TRNSYS-users] Question about dehumidification

David BRADLEY d.bradley at tess-inc.com
Mon Apr 20 08:40:24 PDT 2015


Laldje,
   You can set a dehumidification (and humidification) set point in 
TRNBuild and Type56 will calculate the latent energy removal/addition 
required to meet that setpoint. I'm afraid I do not know whether the 
treatment is adiabatic or not. In my experience you have to be a little 
careful with this because the dehumidification/humidification can occur 
without either sensible heating or cooling occurring. However, more 
often in an actual building, what we really care about is a temperature 
set point and some latent cooling occurs as a result of cooling down the 
air that is used to provide the sensible cooling. If this is your case 
then there is a component in the TESS Loads and Structures library that 
gives an empirical estimate of the latent cooling that occurs as a 
consequence of providing sensible cooling. We use that model in order to 
estimate a total cooling load for building spaces.
kind regards,
  David


On 4/20/2015 4:45 AM, sylvie laldje wrote:
> Dear all,
>
> I would like  simulate dehumidification air in a building.
> Could you give me some ideas please?
> I heard that Trnsys considers the treatment of humidity but only 
> adiabatically, is that true?
>
> Thank you
> Laldje
>
>
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-- 
***************************
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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