[Equest-users] HVAC Loads output question

Morrison, Andrew amorrison at haleyaldrich.com
Thu Jan 27 13:47:55 PST 2011


Brian,

Thanks for that input. I have a follow-up question: I looked at the LS-B report and it has a note that says "The above loads are calculated assuming a constant indoor space temperature." Is this temperature equal to the setpoint temperature of the space?

Also, is there a counterpart to this report that outputs hourly values?

Thanks
Drew

From: Brian Gregory [mailto:bgregory at dynamix-ltd.com]
Sent: Thursday, January 27, 2011 4:24 PM
To: Morrison, Andrew
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] HVAC Loads output question

Drew,

I typically use the "LS-B Peak Load Components" report from the sim-output file for loads.
On Thu, Jan 27, 2011 at 1:34 PM, Morrison, Andrew <amorrison at haleyaldrich.com<mailto:amorrison at haleyaldrich.com>> wrote:
Hi,

I'm modeling a 1940s-era apartment building for a geothermal retrofit. The current heating system consists of hot-water radiators supplied by gas-fired boilers. Cooling is supplied by window air conditioning units in each apartment. The ultimate objective is to generate building space heating and cooling loads to size a heat pump and ground heat exchanger - by space heating and cooling loads, I mean the total heat which has to be added or removed by the HVAC system to maintain all conditioned spaces at their set points.

Currently I'm generating hourly loads from the Building HVAC hourly report block using variables 1 & 2, entitled "Building cool load (coils + losses&gains)" and "Building heat load (coils + losses&gains)". Are these the right variables to use, or do I need to look somewhere else?

Thanks,


Drew Morrison
Engineer
Haley & Aldrich, Inc.
8899 Gander Creek Drive
Miamisburg, OH 45342-5432
Office: 937.530.1431
Cell: 937.307.2223
amorrison at haleyaldrich.com<http://amorrison@haleyaldrich.com>


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Engineering Ltd

Brian Gregory

Mechanical Engineer

855 Grandview Ave., 3rd Floor    Columbus, OH 43215
614-443-1178 ext. 278             www.dynamix-ltd.com<http://www.dynamix-ltd.com/>
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