[Equest-users] input parameters for area lights and miscellaneous equipments.

[Nick Caton]

Soham and Kirti,

 

1.       Exterior lighting:  W/SF as entered in the wizards is
multiplied by the corresponding shell's area in which you're assigning
it.  Quirky, but if you keep that in mind you can avoid the extra step
of correcting in detailed.  It's an easy mistake to enter installed
Watts or kW in the wizard (that seems intuitive to me also). 

2.       Miscellaneous loads and LPD's in the wizards are also handled
on a W/SF basis, but for each space.  You can override the defaults if
you wish to:

a.       LPD is entered for each occupancy type, and those occupancy
types are then assigned to each zone, if you fully utilize the DD
wizards.  You may be as detailed (or not) in assigning your occupancy
types as you feel comfortable/necessary.  

b.      For miscellaneous equipment, I suggest referencing the 90.1
User's manual for plug load W/SF in the context of a LEED/90.1 model.
You can similarly enter a uniform W/SF value for each occupancy type and
that will translate straight into detailed.

c.       Miscellaneous loads beyond plug loads (ex: elevators, process
equipment...) are something I usually handled in detailed mode, where I
can directly edit/create/import the associated scheduling and assign
names I can easily track/reference/document.

3.       An extra reminder:  You can streamline the process of defining
exterior lighting schedules by saving re-useable ones in an .inp file
and importing them from previous projects ;).  More discussion in the
archives if you're curious!

 

~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 Soham
Babu
Sent: Monday, May 23, 2011 8:14 AM
To: kirti pabrekar; equest-users-request at lists.onebuilding.org;
equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] input parameters for area lights and
miscellaneous equipments.

 

Kirti,

 

We can give actual exterior load by assigning it to the electric meter
as screen shot 1, before that you have to create the exterior lighting
schedule as shown in screen shot 2 day, week & annul schedule, then you
can assign the calculated value in electric meter in detail mode.
Regarding the miscellaneous equipment leave eQUEST default as shown in
screen shot 3 , otherwise if you enter the value by yourself it should
be same in baseline & proposed. Regarding LPD for Baseline ASHRAE 90.1
value & for Proposed Actual electrical design. I hope this helps you...

 

   

 

Kind Regards

Soham babu

 

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of kirti
pabrekar
Sent: Monday, May 23, 2011 10:05 AM
To: equest-users-request at lists.onebuilding.org;
equest-users at lists.onebuilding.org
Subject: [Equest-users] input parameters for area lights and
miscellaneous equipments.

 

Dear all, 

I have a query about assigning the area light values and miscellaneous
equipment values in eQuest.

 

While assigning the area lights, exterior loads and miscellaneous
equipment loads; I input the necessary power densities in the wizard
mode. However  I have realized that, the exterior lighting load (w/sf)
input in the Wizard mode is multiplied by the building area (all floors)
and becomes a direct kW load on the electric meter. This directly
resulted in very high numbers for the exterior usage in the simulation
results. This is erroneous in my case and I have figured out a way to
correct it by calculating the actual exterior load figure and assigning
it to the electric meter and updating it with a necessary schedule.  

I was wondering if the software considers a similar analogy for
calculating the area lights and the miscellaneous equipment figures in
the simulation results as it does for the exterior usage. If that is so,
i am sure my results are way too wrong or over board. what would be
correct way/s to input the area light and miscellaneous equipment
figures. Please find attached the .INP file for your reference. 

 

Thanks for your time in anticipation.

 

-- 

Regards,
Ar. Kirti Pramod Pabrekar.

IGBC AP, LEED India, 
M. Arch,
Environmental Planning and Design.

 

...Green is a commitment...not a competition...

 

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