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<DIV dir=ltr align=left><FONT face=Verdana color=#0000ff size=2><SPAN
class=307432413-20082008>Forwarding to the eQuest list so that all may
view...</SPAN></FONT></DIV>
<DIV> </DIV><FONT style="FONT: 8pt Verdana" face=verdana><BR><B>Gary
Schrader<BR></B>Engineer I<BR><BR><B>TAC<BR></B>16011 College Blvd, Suite
212<BR>Lenexa, KS 66219<BR><BR>
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<FONT face=Tahoma size=2><B>From:</B> Brian Fountain
[mailto:bfountain@greensim.com] <BR><B>Sent:</B> Tuesday, August 19, 2008 9:44
AM<BR><B>To:</B> Gary Schrader<BR><B>Subject:</B> [Fwd: Re: [Bldg-sim] VRF
System Modeling - eQUEST]<BR></FONT><BR></DIV>
<DIV></DIV><FONT face=Calibri>from bldg-sim list...</FONT><BR><BR>--------
Original Message --------
<TABLE class=moz-email-headers-table cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR>
<TH vAlign=baseline noWrap align=right>Subject: </TH>
<TD>Re: [Bldg-sim] VRF System Modeling - eQUEST</TD></TR>
<TR>
<TH vAlign=baseline noWrap align=right>Date: </TH>
<TD>Thu, 14 Aug 2008 17:35:03 -0700</TD></TR>
<TR>
<TH vAlign=baseline noWrap align=right>From: </TH>
<TD>Carol Gardner <A class=moz-txt-link-rfc2396E
href="mailto:gems@spiritone.com"><gems@spiritone.com></A></TD></TR>
<TR>
<TH vAlign=baseline noWrap align=right>To: </TH>
<TD>Dan Russell <A class=moz-txt-link-rfc2396E
href="mailto:danr@engineeringinc.com"><danr@engineeringinc.com></A></TD></TR>
<TR>
<TH vAlign=baseline noWrap align=right>CC: </TH>
<TD><A class=moz-txt-link-abbreviated
href="mailto:Bldg-sim@lists.onebuilding.org">Bldg-sim@lists.onebuilding.org</A></TD></TR>
<TR>
<TH vAlign=baseline noWrap align=right>References: </TH>
<TD><A class=moz-txt-link-rfc2396E
href="mailto:48888C79.395C.0080.0@auseea.com"><48888C79.395C.0080.0@auseea.com></A>
<A class=moz-txt-link-rfc2396E
href="mailto:490F06C61AA78F4AB1FD2081EDE0ED7F3BE905@backupsvr.corporate.engineeringinc.org"><490F06C61AA78F4AB1FD2081EDE0ED7F3BE905@backupsvr.corporate.engineeringinc.org></A></TD></TR></TBODY></TABLE><BR><BR><PRE>All,
Steve Gates is working with Daiken to develop the algorithms and data
necessary to be able to model VRFs in eQUEST. He is also developing a
new eQUEST platform simultaneously and more slowly called the Design Day
platform which will solve many of the perceived "problems" with eQUEST
subroutines. I do not know when the DD platform will be available but I
don't think it will slow him up with respect to developing the VRF
algorithms. They will be added to the existing eQUEST platform. These
algorithms will be available some time early to mid next year.
The EnergyPro algorithms are based on MSA data and were developed by
Tianzen Hong for Martin Dodd. I do not know if there is enough of a
difference between MSA VRFs and Daiken VRFs operation/data that would
make the EnergyPro tool inappropriate for use in analyzing the Daiken
VRFs. Someone else could answer this question. Maybe the Daiken rep
quoted here knows enough about it and using EnergyPro is quite appropriate.
Regards,
Carol Gardner
Dan Russell wrote:
> Michael,
>
> I don't have any experience with this yet, but recognizing that it will
> be necessary for myself in the near future as it is for some, like
> yourself, already I went ahead and asked our local Daikin Rep about
> getting VRF routines incorporated into eQuest. The following is a
> response given today by the Daikin engineering department:
>
> |...EnergyPro is basically done. The VRVIII units have been added and
> DOE |testing has been performed to verify the results. Martyn Dodd will
> be at |Sawgrass to bring us all up to speed.
> |
> |eQuest as well EnergyPlus are next to tackle and we have already made
> |contact and started working with the software developers. The time
> frame |is middle to end of 2009 for both software packages. eQuest is
> more of a |wildcard because there are some major software changes
> happening on that |platform because of something called the "Design
> Sizing" project which is |very delayed and could end up hurting our
> timeline. I have found in past |that these timelines typically slip so
> please be wary about making any |concrete promises but you have my
> assurance that it is being worked on and |we will eventually (i.e.
> anywhere from 12 months to 30 months) have this |done.
> |
> |If this is a project with immediate LEED implications, I would explore
> |EnergyPro. There is a Daikin specific site on EnergyPro's domain now.
> |<A class=moz-txt-link-abbreviated href="http://www.daikin.energysoft.com">www.daikin.energysoft.com</A>
> |
> |Sincerely,
> |Sherwin Khayatian
> |Manager, Western Region
> |Daikin AC (Americas), Inc.
> |Tel: 415-686-3165
> |<A class=moz-txt-link-abbreviated href="http://www.daikinac.com">www.daikinac.com</A>
>
> So, at least from the Daikin side it seems that the only sure way to go
> at this time is with EnergyPro. I don't know of a responsive local
> Mitsubishi Rep in my area, but maybe someone out there can ask similar
> question to Mitsubishi regarding their involvement with supporting an
> eQuest-compatible VRF routine.
>
> Thanks,
>
> Dan Russell, EIT
>
>
>
>
> -----Original Message-----
> From: <A class=moz-txt-link-abbreviated href="mailto:bldg-sim-bounces@lists.onebuilding.org">bldg-sim-bounces@lists.onebuilding.org</A>
> [<A class=moz-txt-link-freetext href="mailto:bldg-sim-bounces@lists.onebuilding.org">mailto:bldg-sim-bounces@lists.onebuilding.org</A>] On Behalf Of Michael
> Bejrowski
> Sent: Thursday, July 24, 2008 1:07 PM
> To: <A class=moz-txt-link-abbreviated href="mailto:Bldg-sim@lists.onebuilding.org">Bldg-sim@lists.onebuilding.org</A>
> Subject: [Bldg-sim] VRF System Modeling - eQUEST
>
> Does anyone know about or have any experience modeling VRF systems in
> eQUEST? Can it be done?
>
> Does anyone know about the capability of other software packages to
> model VRF systems? Are any of them better than others?
>
>
> Thanks,
>
> Michael Bejrowski
> Mechanical EIT - Austin, TX
>
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