[Bldg-sim] Major HVAC System Changes - eQUEST

Feng, Sophi FengS at cdm.com
Tue Feb 24 06:35:53 PST 2009


Can anyone advise if there's a better way to switch the DX rooftop
air-handling units to chilled water and hot water systems with chillers
and boilers after detailed data editing in eQUEST? I used Wizard Data
Editing but all the detailed data input for hundreds zones could not be
saved. Is there any other way so I don't need to redo the detailed
editing all over again? Thanks. 

Sophi Feng, PE, LEED AP
CDM Inc. 
8140 Walnut Hill Lane, Suite 1000
Dallas, TX 75231
Ph: (214) 346-2800
Fax: (214) 987-2017
Email: fengs at cdm.com





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Subject: Bldg-sim Digest, Vol 15, Issue 19

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Today's Topics:

   1. Re: VRF and LEED Certification (Scott Hackel)
   2. Two-stage gas furnace curve (Chris Jones)


----------------------------------------------------------------------

Message: 1
Date: Fri, 20 Feb 2009 13:10:48 -0800
From: Scott Hackel <shackel at ecw.org>
Subject: Re: [Bldg-sim] VRF and LEED Certification
To: "bldg-sim at lists.onebuilding.org" <bldg-sim at lists.onebuilding.org>
Message-ID:
	
<96D3EB3475308D48B31E7136AA62D873166B1B99 at multiorgmbx.cgnetmo.org>
Content-Type: text/plain; charset="us-ascii"

Jim -
Unfortunately I don't yet have experience in modeling VRF systems, but I
have some info... At the moment, the EnergyPro package would be the one
to use for VRF.  Both of the major VRF manufacturers do stand behind the
EnergyPro algorithm, and performance curves from current VRF equipment
are used in that software.  You'll likely find it more cumbersome than
TRACE, but TRACE's VRF system has not really been validated to my
knowledge (anyone from CDS, please clarify if I'm mistaken).

eQUEST developer's do plan to introduce VRF in a version in the near
future, but I haven't heard any recent updates on the schedule for that.

Scott Hackel

Project Manager
LEED AP

Energy Center of Wisconsin
455 Science Drive, Suite 200
Madison, WI  53711
608.238.8276  x129
shackel at ecw.org
www.ecw.org


------------------------------

Message: 2
Date: Fri, 20 Feb 2009 17:39:23 -0500
From: Chris Jones <cj at cr-jay.ca>
Subject: [Bldg-sim] Two-stage gas furnace curve
To: Bldg-sim at lists.onebuilding.org
Message-ID:
	
<20090220223921.EEGC1559.tomts13-srv.bellnexxia.net at toip5.srvr.bell.ca>
	
Content-Type: text/plain; charset="us-ascii"; format=flowed

Has anyone any experience with obtaining a furnace curve for a two-stage
burner in a packaged roof top unit.
I would like to create a curve for DOE2.1e.





Chris Jones
14 Oneida Avenue
Toronto, ON M5J 2E3.
Tel.  416-203-7465
Fax. 416-946-1005




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