[TRNSYS-users] how much is rotational speed of the desiccant wheel ?

David BRADLEY via TRNSYS-users trnsys-users at lists.onebuilding.org
Mon Sep 18 07:57:43 PDT 2017


Amirreza,

   I do not know which desiccant wheel model you are using but the ones 
that I am familiar with do not get into the level of detail of how 
control of the outlet humidity ratio is achieved. You are probably right 
that the wheel speed changes. It may be, however, that the model 
supposes that the power required by the wheel motor is independent of 
wheel speed.

kind regards,

  David



On 09/16/2017 00:53, Amirreza Heidary via TRNSYS-users wrote:
> Dear All
> In the desiccant wheel, how does the outlet humidity ratio of fresh 
> air is controlled? I think that the rotational speed of wheel is an 
> important parameter which affects the outlet humidity ratio, but I 
> didn't any parameter determining it. What is the rotational speed of 
> wheel?
> Thank you
>
> --------------------------------------------------------------------------------------------------------------------------------------------------
>
> *Amirreza Heidari*
> /Department of Energy Engineering/
> /Sharif University of Technology/
> /Tehran-Iran/
> /E-mail address/:
>
>     heidari at energy.sharif.edu <mailto:heidari at energy.sharif.edu>
>
>     a <mailto:sm_mousavi at pwut.ac.ir>mirrezaheidarysbu at gmail.com
>     <mailto:mirrezaheidarysbu at gmail.com>
>
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David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
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