[Bldg-sim] Hot water pumps (baseline)

[Andrew Craig]

Varun---

 

If you have purchased hot water in the proposed building and the project
is pursuing LEED certification (which I assume it is) you need to use
USGBC's Treatment of District or Campus Thermal Energy in LEED V2 and
LEED 2009 - Design & Construction.  I've attached it as a reference.
You basically have two options: 1.) building stand-alone scenario where
only the downstream equipment is modeled and hot water is
metered/purchased, or; 2.) aggregate building/DES scenario where the
upstream equipment with its efficiencies or lack thereof are modeled in
the proposed design against 90.1.

 

Regards,

 

Andrew Craig PE, LEED AP
Project Mechanical Engineer

INTERFACE ENGINEERING
email andrewc at interfaceeng.com <mailto:andrewc at interfaceeng.com> 
direct 503.382.2696

www.interfaceeng.com <http://www.interfaceeng.com/> 




 

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of varun
kulkarni
Sent: Thursday, March 17, 2011 8:02 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Hot water pumps (baseline)

 

Hello everyone,

 

User's manual for ASHRAE 90.1 says "For systems 1,5 and 7 (except for
purchased hot water or steam), the baseline building design hot water
pump power shall be 19 W/gpm". (page G-30)

 

I am confused if I have to use the proposed pumps in case I have
purchased hot water.

 

The chilled water pumps are always (as i understand) modeled at 22
W/gpm. 

 

-- 

Thanks and Best Regards,

 

Sincerely,

Varun Kulkarni , M.S. , EIT

RMF Engineering

5520, Research Park Drive, Suite 300

Baltimore, MD - 21228

 

Office : 410-576-0505 ext. 5352

Mobile: (+1)405-385-1928

 

Note: Please do not print, unless required.

 

 

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