[TRNSYS-users] reg-sizing of coil and cooling load calculation using TYPE 56

David Bradley bradley at tess-inc.com
Thu Sep 18 07:01:28 PDT 2008


Dear S. Rajkumar,
  I would suggest that you start by looking at the restaurant example 
(..\Trnsys16\Examples\Restaurant\..) as it calculates the heating and 
cooling load of spaces in a three-zone building. You may have to 
manipulate the QSENS outputs of Type56 because it reports heating load 
as a negative value and cooling load as a positive value. You will need 
to integrate only the positive values to get the annual cooling load and 
integrate only the negative values to get the annual heating load. As 
for the peaks, you can report the load for each hour of the year and 
then find the maximum hourly value using either Type55 or as a 
post-processing step using Excel to look at an output file.

 One thing to bear in mind though - since TRNSYS uses an annual weather 
file that contains average conditions, the peak heating and cooling 
loads are not for design conditions, they tell you only the cooling and 
heating loads at the worst hour of an average year.

Kind regards,
 David


srajk76 at gmail.com wrote:
>
> Dear All,
>
>          I want to calculate  Cooling capacity (  xyz tonnage), 
> cooling peak annual cooling load of simple building in autosize mode 
> using TYPE 56. I could not find such examples in TRNSYS16 latest. I 
> have to do exercise for simple unitary system and building with 
> chiller, cooling tower arrangement.
>
>          I will be grateful, if some one one can help by providing 
> some example.
>
> Thanks and regards
>     
> S.Rajkumar
> Research associate,
> TERI, Newdelhi -110003
> India.
> ------------------------------------------------------------------------
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
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>   

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Thermal Energy System Specialists (TESS), LLC 
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E-mail: bradley at tess-inc.com 
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