[Bldg-sim] Small building that wants to get LEED Platinum

[Sami, Vikram]

The process is:

Reduce Loads
Meet the remaining loads more efficiently
Green The supply

Run your base model. Look at the load distribution and then make decisions.

For a restaurant (especially one that small) - I'm guessing process loads (cooking & Refrigeration)) are a huge component of this. Address that first - are there more efficient ways of cooking? Better equipment? Refrigeration?

Here's a pie chart from LBNL's building IQ website that looks at components from a dataset of measured restaurants. Cooking & Refrigeration are 62% of the total energy use. You're not going to get to 30% without addressing this.

[cid:image001.png at 01CB21AC.05430180]

Once you address the large loads, the rest is relatively easy.

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: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Eric O'Neill
Sent: Monday, July 12, 2010 10:03 AM
To: James V Dirkes II, PE; bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Small building that wants to get LEED Platinum

I'm assuming this is in Michigan. I'd bet on CO2 ventilation control (although I'm not sure what the exhaust requirements are). You may even only need a single CO2 sensor, although it will make control system selection a little more interesting. Avoid in-slab radiant - night setback will be important. An energy recovery unit may work out as well (~5 year payback?), considering the high occupant density, cold winters, and humid summers (Michigan makes you appreciate the blue sky).

Sounds like one that you can have a little more fun with though, so some of the other more creative ideas may work out well too. Good luck.

Eric

From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of James V Dirkes II, PE
Sent: Saturday, July 10, 2010 11:36 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Small building that wants to get LEED Platinum

Dear Modelers,

An A/E client is pursuing a project which wants to receive LEED Platinum for a 2,000 square foot Subway restaurant.  I don't know Subway's "back of the house" operations, but this sounds like a small restaurant with very little cooking, plus "normal" lights and people.

My client thinks that Platinum certification will probably require ~30% improvement over the Baseline energy use.

My question for you is this:
Assuming that we'll use top notch envelope and lighting systems, what HVAC system do you think will enable 30% savings for such a small building?  (Forget cost for the moment, just brainstorm!)

Thanks in advance.

The Building Performance Team
James V. Dirkes II, P.E., LEED AP
1631 Acacia Drive NW
Grand Rapids, MI 49504
616 450 8653

From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of mike steadman
Sent: Thursday, June 24, 2010 4:19 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] question

Hi,

What software do you suggest for Modeling Commercial buildings?

I live in Michigan work for a company doing energy audits from 5000-120000 square feet.

Energy Plus -over my head
equest-CA defaults
DOE 2.1 or DOE 2.2 ?

Would like a free option and one that I have to buy?
Thank you

Mike

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