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RE: [EnergyPlus_Support] similar to Purchased Air
I use Purchased Air models as a way of normalizing HVAC performance during
design analysis of buiding form, fabric, and operation. This allows
isolating energy use implications of the building itself from those of the
HVAC system. A model of real HVAC system will be affected by equipment
sizing, part-load, and control issues that can fluctate at the same time you
change building design.
Brent
-----Original Message-----
From: Najad Tuffaha [mailto:ntuffaha@xxxxxxxxxxxxxxx]
Sent: Wednesday, January 22, 2003 11:16 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: RE: [EnergyPlus_Support] similar to Purchased Air
It appears that "Purchased Air" option does not represent any actual type of
airside HVAC system. What is the purpose of simulating such an option,
rather than simulating real airside systems?
Najad Tuffaha, PE, CEM
PEPCO ENERGY SERVICES
Office 703 253-1774
Mobile 202 309-0553
Fax 703 253-1799
-----Original Message-----
From: Richard J. Liesen [mailto:r-liesen@xxxxxxxx]
Sent: Wednesday, January 22, 2003 12:39 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx; EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: Re: [EnergyPlus_Support] similar to Purchased Air
Hello,
Purchased Air can not do this. However all of the Constant Volume systems
do provide this, ie. Single Duct Terminal Reheat, Fan Coils, etc..
Thanks
Richard Liesen
At 09:31 AM 1/22/2003, li zhang wrote:
>Hello, Everyone,
>In purchased air, the air temperature is given, and
>the flow rate can be calculated and provided based on
>the load. Is there a way in which the supply air
>flow rate is given, however the air temperature can be
>calculated and provided?
>
>Thank you!
>
>Li Zhang
>Department of Mechanical Engineering
>Iowa State University
>Ames, IA 50011
>
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