[Equest-users] Modeling 2 interconnected buildings

[Omar Katanani]

Much appreciated, thank you!


Best regards,
Omar
___________________________
Omar Katanani
Senior Sustainability Engineer
Email: omar at ecoconsulting.net

EcoConsulting (Lebanon)
Nahas Building, 4th floor
Georges Haddad Avenue
Postal Code: 2028 5806, Saifi District
Beirut, Lebanon
Tel:  +961 (0) 1 971 266
Mobile: +961 (0) 3 045 045
EcoConsulting (UK) Ltd
28 Marshalsea Road
London, SE1 1HF
Tel: +44 (0)207 939 0989
Fax: +44 (0)207 939 0981
Website: www.ecoconsulting.net<http://www.ecoconsulting.net/>
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From: Byron Burns [mailto:B.Burns at ha-inc.com]
Sent: 14 May 2013 17:25
To: Omar Katanani; equest-users at lists.onebuilding.org
Subject: RE: [Equest-users] Modeling 2 interconnected buildings

Hello Omar,

I guess it doesn't really matter either way.  The parking garage levels will be fairly easy to model.

Any way personally I determine the number of shells I use based on floor layouts, changes in floor to floor heights (atriums or secondary floors between main floors).  Using the wizard to create the shell means each floor within the shell will have the same zoning pattern, which is not an issue for unconditioned floor areas, but will be if you have different zoning patterns on the conditioned floors.

>From your rendering and assuming each floor has a different zoning pattern, I would use 10 stacked shells.

>From top to bottom

1.     Bldg #1 Level 7

2.     Bldg #1 Level 6

3.     Bldg #1 Level 5

4.     Bldg #1 Level 4

5.     Bldg #2 Level 4 A

6.     Bldg #2 Level 4 B

7.     Bldg #1 Level 3

8.     Bldg #2 Level 3

9.     Bldg #1 Level 2    & Library Level 2                & Bldg #2 Level 2

10.   Bldg #1 Level 1    & Library Level 1                 & Bldg #2 Level 1                & Parking garage both levels


Note:

*         There is not a huge difference in the exterior of Bldg #1 levels 3-5 so depending on the required level of detail, you may be able to simplify these levels and combine into one shell.

*         If the zoning patterns for each floor are similar then the shell count may be reduced

*         eQUEST does not adjust the adjacency for the floors between stacked shells. It models them as if they are adiabatic, if you determine this is a big enough issue, you will need to manually adjust them in the detailed edit mode.  I have modeled both ways and have had negligable difference in the results, but it really depends on the differences between zones.

Hope that helps,

Byron

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Omar Katanani
Sent: Tuesday, May 14, 2013 3:03 AM
To: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Modeling 2 interconnected buildings

Thanks Byron,

I actually never thought we have the option of not modeling the unconditioned basements. I know what you're saying makes sense logically, but I am modeling the building for LEED, and I'm not sure the USGBC would like the fact that I'm not modeling 2 full basement levels.

Assuming I have to, do you agree with the attached drawing (dividing into 3 shells)?

Thanks,
Omar
___________________________
Omar Katanani
Senior Sustainability Engineer
Email: omar at ecoconsulting.net<mailto:omar at ecoconsulting.net>

EcoConsulting (Lebanon)
Nahas Building, 4th floor
Georges Haddad Avenue
Postal Code: 2028 5806, Saifi District
Beirut, Lebanon
Tel:  +961 (0) 1 971 266
Mobile: +961 (0) 3 045 045
EcoConsulting (UK) Ltd
28 Marshalsea Road
London, SE1 1HF
Tel: +44 (0)207 939 0989
Fax: +44 (0)207 939 0981
Website: www.ecoconsulting.net<http://www.ecoconsulting.net/>
[EcoConsulting Membership Logos (low res)]

From: Byron Burns [mailto:B.Burns at ha-inc.com]
Sent: 13 May 2013 19:21
To: Omar Katanani; equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Subject: RE: [Equest-users] Modeling 2 interconnected buildings

Hello Omar,

I would first define the thermal boundary of the conditioned spaces.  I assume the parking area is not conditioned so the only the two above grade buildings (possibly the library according to your project boundary) need to be modeled. The lighting and exhaust fan energy for the parking structure can be accounted for as an external process load attached to the meters.

Hope that helps,

Byron Burns
From: equest-users-bounces at lists.onebuilding.org<mailto:equest-users-bounces at lists.onebuilding.org> [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Omar Katanani
Sent: Monday, May 13, 2013 11:55 AM
To: equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Subject: [Equest-users] Modeling 2 interconnected buildings

Dear All,

I want to start modeling a school project comprising of 2 buildings interconnected by:

1.     A car parking on 2 basement levels, and

2.     a library space at the Ground & First Floor levels

I have attached a 3D rendering of the project and highlighted the 2 buildings (building 1 & building 2 in red and green) and the library separating them (in blue color). The underground basement is not shown in this image but will span the whole footprint below the 2 buildings.

I want to start by modeling these buildings via the wizard. I guess I will need to create separate shells and position them properly, right?

If this is the case, is the best scenario to model 3 shells as follows?

*         1 for Bldg#1,

*         1 for the library, and

*         1 for Bldg#2

As for the basement, is it better to model it as 1 big shell and place the 3 shells (listed above) just over the basement shell? Or it is better to divide the basement into 3 sections and merge each section with the above-ground shell (listed above)?

I hope I explained it clearly :)

Thanks,
Omar
___________________________
Omar Katanani
Senior Sustainability Engineer
Email: omar at ecoconsulting.net<mailto:omar at ecoconsulting.net>

EcoConsulting (Lebanon)
Nahas Building, 4th floor
Georges Haddad Avenue
Postal Code: 2028 5806, Saifi District
Beirut, Lebanon
Tel:  +961 (0) 1 971 266
Mobile: +961 (0) 3 045 045
EcoConsulting (UK) Ltd
28 Marshalsea Road
London, SE1 1HF
Tel: +44 (0)207 939 0989
Fax: +44 (0)207 939 0981
Website: www.ecoconsulting.net<http://www.ecoconsulting.net/>
[EcoConsulting Membership Logos (low res)]

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