[Equest-users] Steam Heating plus Domestic

[Kelsey VanTassel]

I would use the "Radiant Slab" air-side system type, then you don't have to worry about airflows. I don't know how to connect the steam boiler to the DHW loop.

Kelsey Van Tassel
Mechanical Engineer | kvantassel at sustaineng.com<mailto:kvantassel at sustaineng.com>
608.836.4488 ext. 20 | Fax: 608.836.4477

Sustainable Engineering Group
901 Deming Way, Suite 201
Madison, WI 53717
www.sustaineng.com<http://www.sustaineng.com/>


From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Paul Diglio
Sent: Thursday, October 28, 2010 2:33 PM
To: Dane Heimerman; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Steam Heating plus Domestic

Dane:

Create a second steam meter and assign the DHW loop to this meter.

Paul Diglio

________________________________
From: Dane Heimerman <daneh at mlnai.com>
To: equest-users at lists.onebuilding.org
Sent: Thu, October 28, 2010 1:53:01 PM
Subject: [Equest-users] Steam Heating plus Domestic

Hi there,
I'm trying to model an old building with an one-pipe steam heating system. One unique thing about the system is that a heat exchanger in the steam boiler heats a storage tank for domestic hot water. I haven't found a way to connect the domestic loop to the steam boiler to prove how inefficient this system is. I'm expecting that the boiler would run much less if the systems were separated, but I need a way to show this. Any ideas on how to connect the two loops would be appreciated. My other question is, since this building has no air-side HVAC, what system should I use to heat the zones? Right now I'm using a 'heating/ventilating' system, forcing the air flow to zero in all the zones, and turning on baseboards attached to the steam loop. Is that the right way to do it?

Thanks,

-- Dane Heimerman
HVAC Engineer
Michael L. Norris&  Associates, Inc.
270 Walker Dr, Suite 201B
State College, PA 16801
p:814.867.3823
f:814.867.4823
daneh at mlnai.com<mailto:daneh at mlnai.com>


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