[Hap-users] HAP 4.9 - Query on the method of supply air flow rate calculation method

ARUNSHANKAR via Hap-users hap-users at lists.onebuilding.org
Thu Jul 28 05:45:26 PDT 2016


Hello Dear,

 

We did a comparison of the heat load calculation using  HAP 4.9 Vs
DesignBuilder software. The results were surprising that even though the
sensible load and latent load results obtained from both the software are
same, the supply air flow rate differs drastically as 120 cfm/ton (Supply
air flow rate obtained from DesignBuilder is higher than hap result). The
theoretical calculation of supply air flow rate also matches with the result
of DesignBuilder software.

 

So, on what basis the supply air flow rate is being calculated in HAP
software? 

 

 

 

Thanks & Regards

 

Arun Shankar .A

Engineer - HVAC

 


Innowell Engineering International Pvt. Ltd.
# 2/8, Third floor, First cross street,
Lambert Nagar, Alwarthirunagar,
Chennai - 600 087
Ph : 91-44-23641976 Cell: +91 9600034608

 <mailto:shankar at innowellgroup.com> shankar at innowellgroup.com

 <http://www.innowellgroup.com/> www.innowellgroup.com

 

 

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