[BLDG-SIM] integrating walk in cooler in the HVAC system

[Brian Fountain]

The standard version of eQUEST (3.55 or 3.6) has a refrigeration model
in it which may be sufficient for your purposes.  It does allow zone
heating from refrigerated cases.  I would recommend starting here for
a simple refrigeration system such as your convenience store.

The refrigeration version of eQUEST has considerable more detail on
the refrigeration system (with pressure & flow in refrigerant loops
and details on individual cases and other circuit components).  It
models both heating from the heat rejected from the refrigerated cases
and HVAC cooling from the refrigeration system.  Currently, the
refrigerated version "add in" is available for version 3.55.  The
refrigeration version for eQUEST 3.6 is reportedly "coming soon".

While the SSS tool is available from EPRI -- the software is quite
expensive.

Regards,

Brian Fountain
GreenSim

-----Original Message-----
From: BLDG-SIM at GARD.COM [mailto:BLDG-SIM at GARD.COM] On Behalf Of Steven
Carlson
Sent: October 19, 2006 4:43 PM
To: BLDG-SIM at GARD.COM
Cc: BLDG-SIM at GARD.COM
Subject: [BLDG-SIM] integrating walk in cooler in the HVAC system

The EPRI Supermarket Simulation Tool was designed to integrate 
refrigeration and HVAC. I think it's still available directly from
EPRI.

Steve Carlson
CDH Energy Corp

Abaza, Hussein wrote:
>
> Hi all;
>
> I am trying to integrate a walk-in cooler in a convenient store in 
> store's HVAC system. In winter, I would like to direct the heat from

> the walk-in cooler cooling system to be used in heating the store.
The 
> store is in Greenville, NC ( moderate climate). The convenient store

> is still in the design phase now. The estimated heating load for the

> convenient store is 48,000 Btu/hour. The walk-in cooler cooling 
> capacity should be appproximatelly four tons. The convenient store 
> design is an open plan with high ceiling. Does anyone have an idea
of 
> how such integration might be?
>
> Thank you for your help.
>
> Dr. Hussein Abaza
>
> East Carolina Univeristy
>
>
>
----------------------------------------------------------------------
--
> *From:* BLDG-SIM at GARD.COM on behalf of Virdi Permana
> *Sent:* Thu 10/19/2006 11:46 AM
> *To:* BLDG-SIM at GARD.COM
> *Subject:* [BLDG-SIM] ASHRAE 90.1-2004: BAseline DEsign Questions
>
> Hello all,
>
> I am a newbie in Building Modeling and eQuest.
>
> Currently I am in the process of working in developing a baseline
case.
>
> Question:
>
> 1. This is about Table G3.1, No.5, which is Building Envelope part
of 
> the requirement for calculating proposed and baseline building 
> performance on ASHRAE 90.1-2004. Can anyone explain about point "b"
in 
> Baseline Building performance column? My understanding is as follow:

> It looks like what ever the proposed building is, the base line 
> building will always consist of: a) Insulation entirely above deck 
> type of roofs, b) Steel-framed type of above-grade walls, and c) 
> Steel-joist type of floors. Can anyone please confirm if my 
> understanding is correct or wrong?
>
> 2. This is about how to translate the requirement of Opaque elements

> from Table 5.5-1 to 5.5-8 of ASHRAE 90.1-2004 to Equest (Design 
> Development Wizard: Shell component, windows 3 and 4). How do we use

> the value from the table 5.5 on Equest exactly? I am a little bit 
> unclear about where I should plug in these values from this table on

> eQuest.
>
> For example:
>
> If we see Wizard screen 3 of 25, say Roof Surfaces part.
>
> My understanding is:
>
> Construction and Ext Finish/Color part, this data we get from the 
> architecture drawing.
>
> On the other hand, does the value from the table 5.5 go straight to 
> Exterior Insulation and Add'l Insulation part?
>
> Any answer you could provide is greatly appreciated.
>
> Sincerely,
>
> Virdi Permana
>
> www.emsi-green.com
>
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-- 
Steven Carlson P.E., LEED AP
CDH Energy Corp.
33 N 1st St
Evansville, WI  53536
608-882-0111
www.cdhenergy.com


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