[Bldg-sim] eQuest & Mitsubishi VRF systems

[Sharon Gould]

Has anyone tested this system in TRACE?  It is a system selection.

 

 

Sharon Gould, P.E., LEED(r) AP, CEM

ACES New Construction Project Manager - Focus on Energy

 

Franklin Energy Services, LLC

211 S. Paterson Street, Suite 320

Madison, WI  53703

Ph:       608-310-6910/888-201-4061

Cell:     608-669-1687

Fax:      608-310-6909

Email:  sgould at franklinenergy.com

Visit our website at:  www.focusonenergy.com
<http://www.focusonenergy.com/> 

 

________________________________

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Chris Jones
Sent: Tuesday, April 08, 2008 8:49 AM
To: Brandon Nichols; bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] eQuest & Mitsubishi VRF systems

 

Thanks for your response.  I will check with the VisualDOE folks to find
out if there that is a viable option at this point.

At 18:37 2008-04-02, Brandon Nichols wrote:



content-class: urn:content-classes:message
Content-Type: multipart/alternative;
         boundary="----_=_NextPart_001_01C89512.22B48990"

All,
 
It is my understanding that Mitsubishi and Daikan funded development of
DOE2 VRF routines that run under EnergyPro and VisualDOE using DOE2.1E,
and there may be some problematic challenges
<http://lists.onebuilding.org/pipermail/bldg-sim-onebuilding.org/2007-Au
gust/006284.html>  hindering simple implementation in eQuest.
. 
Will see if I can elicit comment on this topic from eQuest's dynamic,
talented and decidedly underappreciated developers, who tirelessly toil
day and night on our behalf.  Perhaps we can show our appreciation for
them by all lobbying our local Mitsubishi / Daikan reps to secure
funding for a port-to-eQuest effort.  After all, updating to eQuest it
seems would be in the manufacture's best interests, with usage of
variable refrigerant flow systems gaining traction in the marketplace.
 
As a short-term workaround, am following up on a rumor that there may be
a way for an eQuest parametric run to be manually edited to reference
these routines, provided they can be obtained.  Will also see what I can
do about actually obtaining them.  This isn't a purely altruistic
gesture, I too am working on a VRF system.
 
More information forthcoming, hopefully...
 
Brandon Nichols, PE,  LEED AP
Mechanical
HARGIS ENGINEERS
600 Stewart St
Suite 1000
Seattle, WA 98101
d | 206.436.0400 c | 206.228.8707
o | 206.448.3376 f | 206.448.4450
www.hargis.biz

________________________________

From: bldg-sim-bounces at lists.onebuilding.org [
mailto:bldg-sim-bounces at lists.onebuilding.org
<mailto:bldg-sim-bounces at lists.onebuilding.org> ] On Behalf Of Haider
Khan
Sent: Tuesday, April 01, 2008 10:09 AM
To: Chris Jones
Cc: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Mitsubishi VFR systems

As far as I know you cannot do it in DOE2 directly, but a quasi DOE2
approach would be to calculate the hourly system loads using DOE2 and
calculate VRV energy consumption using spreadsheet calculations. You
will have to create a regression based model to calculate the energy
consumption as a function of the capacity and outdoor air temperature
(The data is available on Mr. Slim website). Once you are sure the model
is working correctly (be sure to put limits on your equations for out of
range data) you can use the hourly weather boundary conditions to
calculate the annual energy consumption. 
 
If  you are doing code compliance using eQUEST you can calculate the
average calibrated EER using the above methodology and use it as a DOE2
input. 
 
Best Regards,
Haider M. Khan, MSME  
 
ICF International
9300 Lee Highway,
Fairfax, VA 22031
Ph:  703 934-3868
Fax: 703 934-3530


 
On Fri, Mar 28, 2008 at 12:08 PM, Chris Jones <cj at cr-jay.ca> wrote:

I am presented with the task of modelling a small commercial building

with the Mitsubishi variable flow refrigerant system - heat

pumps.  Does anyone have any hints for approximating this system in

DOE2.1e or equest?




Chris Jones, P.Eng.

14 Oneida Avenue

Toronto, ON M5J2E3

Tel. 416 203-7465

Fax. 416 946-1005

_______________________________________________

Bldg-sim mailing list

http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org

To unsubscribe from this mailing list send  a blank message to
BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG


. 
_______________________________________________
Bldg-sim mailing list
http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org
To unsubscribe from this mailing list send  a blank message to
BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG


Chris Jones, P.Eng.
14 Oneida Avenue
Toronto, ON M5J2E3
Tel. 416 203-7465
Fax. 416 946-1005

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/bldg-sim-onebuilding.org/attachments/20080408/e61a8b1d/attachment-0002.htm>