[Equest-users] Cooking Equipment and Elevators/ Exhaust fans

[Nick Caton]

The comment from the reviewer looks like a copy-paste job from one of my
recent models (maybe we got the same guy/gal?).

 

Applying the equipment loads to the spaces as you've initially done is
the intuitive thing to do, but for LEED you will run into issues coming
up with annual consumption totals and maximum demand figures analogous
to other energy enduses normally reported in the graphical outputs.

 

As others are suggesting, I have specified non-receptacle process loads
as direct loads to one or more submeters.  In doing so you can get the
analogous monthly consumption/demand quantities reported explicitly
through report PS-B, separate from your default gas/electric meters.

 

The disadvantage here (to the potential detriment in your modeled
performance) is that this method of reporting separately also removes
the associated internal loads from your buildings, which means you gain
less credit for any better-than-standard HVAC equipment handling those
loads.  In the case of elevators, it may be negligible, but in the case
of significant kitchen equipment loads, you might want to run it defined
each ways [submetered for PS-B documentation but in the spaces for
everything else] and explain the reason for the separate simulation in
the provided PS-B reports is because the loads must be "isolated" from
the building to meet such reporting demands, but that this in turn skews
the loads incident on the systems for the actual model performance
runs... 

 

...but don't jump through any extra hoops if removing those internal
loads doesn't make a big difference ;)!  

 

In fact, Otto's suggestion to politely advise the reviewer of the issue
and simply provide screenshots of the corresponding schedules/inputs is
interesting and something I might try myself, next time this particular
comment comes up - that may be the path of least resistance.

 

~Nick

 

 

 

NICK CATON, E.I.T.

PROJECT ENGINEER

Smith & Boucher Engineers

25501 west valley parkway

olathe ks 66061

direct 913 344.0036

fax 913 345.0617

www.smithboucher.com 

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Bosch,
Crina
Sent: Monday, January 24, 2011 2:37 PM
To: Ravi Srinivasan
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Cooking Equipment and Elevators/ Exhaust
fans

 

Thank you all for your suggestions and thoughts. I will try the option
with 2 meters and hopefully this will resolve my problem. 

 

Sincerely, 

Crina Bosch

 

________________________________

From: Ravi Srinivasan [mailto:ravi.s.srinivasan at gmail.com] 
Sent: Monday, January 24, 2011 3:35 PM
To: Demba Ndiaye; Bosch, Crina
Subject: Re: [Equest-users] Cooking Equipment and Elevators/ Exhaust
fans

 

Well said, Demba.

Crina, create two new meters (of "building" type) - one for Kitchen and
another for Elevator. Input kW and associated schedules as direct loads.
Open the "utility" electricity meter (typically "EM1"). And, bring these
two newly created meters within EM1. 

PS-B report should show energy use of Kitchen and Elevator separately.
Ensure you have these two meters and associated loads input in baseline
and proposed. 

Best Regards.



-- 
Ravi Srinivasan, PhD

On Mon, Jan 24, 2011 at 3:15 PM, Demba Ndiaye <Demba.Ndiaye at setty.com>
wrote:

Crina,

 

For the elevators, you can create a separate meter...

 

_______________

Demba NDIAYE

 

From: equest-users-bounces at lists.onebuilding.org [mailto:
equest-users-bounces at lists.onebuilding.org] On Behalf Of Otto
Schwieterman
Sent: Monday, January 24, 2011 3:05 PM
To: Bosch, Crina; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Cooking Equipment and Elevators/ Exhaust
fans

 

My only suggestion would be to perform a save-as and change the misc
equipment energy consumption to zero for the elevator (and then do it
again for the kitchen) to find the equipment usage and demand.

 

If your independent fans are exhaust fans, I would do the same thing
that I mentioned above. 

 

The reports in eQUEST will not break out the equipment but you can write
a narrative explaining that eQUEST cannot separate these loads and
explain your procedure. I believe that the reviewer simply wants to make
sure that the energy consumption is the same for these items in the
baseline and proposed model.

 

From: Bosch, Crina [mailto:CBosch at karpinskieng.com] 
Sent: Monday, January 24, 2011 2:04 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Cooking Equipment and Elevators/ Exhaust fans

 

Dear users, 

 

I received form USGBC the following comment: 

 

"The project contains elevators and kitchen equipment in the actual
design; however, the process energy related to the elevator and kitchen
equipment was not included in each energy model, since Section 1.8 of
the template does not include the process energy consumption for
elevator or kitchen equipment. Revise the Proposed and Baseline models
to include the process energy for elevator and kitchen equipment in the
appropriate space in the models. In addition, update the template
reflecting the changes."

 

The kitchen equipment and elevators were input in the model under the
equipment tab for each space as designed but I couldn't separate them in
eQuest from the Misc. Equip under the Consumption by Enduse Report or
Demand Report. I verified everything I could and see how I can spit them
and the only thing I found was this: "INTERIOR-EU - Accepts a list of up
to 10 code-words specifying the end-use category of the INTERIOR-POWER.
The code-words correspond to the end-use categories in the end-use
reports (PS-E, PS-F, BEPS, BEPU). Acceptable entries are LIGHTS,
TASK-LIGHTS, MISC-EQUIP, SPACE-HEATING, SPACE-COOLING, HEAT-REJECT,
PUMPS&AUX, VENT-FANS, REFRIG-DISPLAY, HT-PUMP-SUPPLEM, DOMEST-HOT-WTR,
and EXT-USAGE. "

In the end I understand that eQuest does not have the option of doing
what the reviewer is asking for. 

 

The reviewer also wants the independent fans to be separated from the
supply and return fans which I didn't find how. 


Am I missing something here? 

 

Your help is appreciated. 

Thank you.

Crina Bosch

 

 

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