[Equest-users] Baseline Modeling

[Sami, Vikram]

My two cents:

I think the process outlined by Paul is fine if you are doing compliance modeling or "after the fact" modeling.  A lot of the time when I start a model there is no proposed building - the model is used as a tool to define the proposed building. I find its better to start out with the 90.1 model and then run it in the detailed interface mode. John is right about the schedules - most often those are the first thing to go and are substituted with my own. I've attached a little XL tool that I created that I like to use for this - it allows you to push and pull the slider bars till you get your required schedule (you have to enable macros in the worksheet). It then creates a text string that you can copy and paste into your inp file to create a day schedule. Feel free to use it.

Back to the workflow thing - I find that if you start out with a 90.1 building  - it allows you to run this as a baseline and make design decisions to improve on it by looking at the base. This way you still have all your wizard values for the base building (although the inp file for 90.1 construction posted to this list earlier makes that superfluous too).




Vikram Sami, LEED AP
Sustainable Design Analyst
1382 Peachtree St. NE, Atlanta, GA 30309
t: 404-443-7462    f: 404.892.5823       e: vikram.sami at perkinswill.com   www.perkinswill.com<http://www.perkinswill.com/>
Perkins+Will.  Ideas + buildings that honor the broader goals of society


From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of John Aulbach
Sent: Friday, June 11, 2010 2:28 PM
To: Peter Hillermann; Paul Buchheit; Omar Katanani; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Baseline Modeling

My two cents..

Before you make two Detailed Edit Models (one baseline, one proposed), make sure you have all the correct schedules and ancillary loads the same in ONE Detailed Edit model. You have quite rudimentary schedules in the Wizards (probably developed on Mars), so you need to insure any additional schedules (or schedule changes) and load additions are made.

THEN make your two Detailed Edit models.


John R. Aulbach, PE, CEM
Senior Energy Engineer
________________________________
Partner Energy
1990 E. Grand Avenue, El Segundo, CA 90245
W: 888-826-1216, X254| D: 310-765-7295 | F: 310-817-2745
www.ptrenergy.com<http://www.ptrenergy.com/> | jaulbach at ptrenergy.com<mailto:%7C%20jaulbach at ptrenergy.com>


________________________________
From: Peter Hillermann <e190984026 at exchange.1and1.com>
To: Paul Buchheit <paul.buchheit at eesinet.com>; Omar Katanani <omar at ecoconsulting.net>; equest-users at lists.onebuilding.org
Sent: Fri, June 11, 2010 11:11:21 AM
Subject: Re: [Equest-users] Baseline Modeling
Thanks Paul,

Someone later told me I was incorrect and I’ll be changing the way I do it as well. Starting proposed and working backwards.

Thanks,

PETER HILLERMANN

peterh at westallarchitects.com<mailto:peterh at westallarchitects.com>

westall
architects
3404 pierce drive
chamblee, georgia 30341

o 770.458.4113
f  770.458.5352
c 678.898.2936

westallarchitects.com<http://westallarchitects.com/>
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From: Paul Buchheit [mailto:paul.buchheit at eesinet.com]
Sent: Friday, June 11, 2010 1:23 PM
To: Peter Hillermann; 'Omar Katanani'; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Baseline Modeling

Hello Omar,

These are the steps I suggest you follow to complete the proposed building and the baseline building models most efficiently:

1) Model the proposed building first. Do everything you can in wizard. Keep a copy of the model at this stage so that you can easily go back to this state of your model if necessary.
2) Save two new copies of your model- one for the proposed model to be completed in the detailed editor and one for the baseline model.
3) Complete the proposed model in detail editor
4) Go back to the model you saved in step 2 of this process as the baseline model and change your selections in the wizard to comply with ASHRAE 90.1. This is quicker and easier than changing all the values manually.Keep a copy of the model at this stage so that you can easily go back to this state of your model if necessary.
5) Save a new copy of the baseline model and complete it in the detailed editor.

This process allows you to do everything you can in the wizard for both the baseline and proposed building models. It also helps to ensure that schedules and other aspects shared by the two buildings are modeled the same as required by ASHRAE 90.1.


I hope this helps,

Paul




Paul Buchheit
Mechanical Engineer
EESI
phone: 541-754-1062
fax: 541-753-3948
paul.buchheit at eesinet.com<mailto:paul.buchheit at eesinet.com>


----- Original Message -----
From: Peter Hillermann<mailto:e190984026 at exchange.1and1.com>
To: 'Omar Katanani'<mailto:omar at ecoconsulting.net> ; equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Sent: Friday, June 11, 2010 9:26 AM
Subject: Re: [Equest-users] Baseline Modeling

Omar,

You need to start with the baseline then enter you efficient values. Yes you need to enter ASHRAE standards manually.

Thanks,

PETER HILLERMANN

peterh at westallarchitects.com<mailto:peterh at westallarchitects.com>

westall
architects
3404 pierce drive
chamblee, georgia 30341

o 770.458.4113
f  770.458.5352
c 678.898.2936

westallarchitects.com
[cid:image001.jpg at 01CB0983.1D73B880][cid:image002.gif at 01CB0983.1D73B880]



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: Friday, June 11, 2010 11:48 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Baseline Modeling

Dear all,

I am modeling a school using eQUEST. I have entered the values corresponding to the proposed building (like the specifications given). I would like to model the baseline building according to ASHRAE 90.1 standard.
Do I have to change the U-values, HVAC strategy, Window/wall ratio, and the other stuff manually? That is, shall I open the ASHRAE standard and start changing all values one-by-one? The ASHRAE Standard 90.1 isn’t recognized by eQUEST such that it can create the baseline case alone? That would save a lot of time!

Best regards,
Omar
___________________________
Omar Katanani
Sustainable Design Engineer
Email: omar at ecoconsulting.net<mailto:omar at ecoconsulting.net>

EcoConsulting (Lebanon)
Chawkatly Building (Valli & Valli), 6th floor
Charles Helou Street, Saifi District
Beirut, Lebanon
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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