[Equest-users] HVAC Loads output question

Brian Gregory bgregory at dynamix-ltd.com
Thu Jan 27 13:58:45 PST 2011


It is my understanding that the loads are calculated based on the "Indoor
Design Temperature" and not the setpoint temperature. You can generate
hourly reports using the "Space" blocks in the hourly report blocks however
you would need to make a separate block for each space.

On Thu, Jan 27, 2011 at 4:47 PM, Morrison, Andrew <
amorrison at haleyaldrich.com> wrote:

> 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> 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
>
>
>
>
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>
>
> --
>
> *Dynamix*
>
> *Engineering Ltd*
>
> *Brian Gregory*
>
> *Mechanical
> Engineer
> *
>
> 855 Grandview Ave., 3rd Floor    Columbus, OH 43215
>
> *614-443-1178 ext. 278             **www.dynamix-ltd.com*
>



-- 

*Dynamix***

*Engineering Ltd*

*Brian Gregory***

*Mechanical
Engineer
***

855 Grandview Ave., 3rd Floor    Columbus, OH 43215
*614-443-1178 ext. 278             **www.dynamix-ltd.com*
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