[Bldg-sim] Modeling variable refrigerant flow system (VRF) in

[Sam Mason]

Travis,
Good to hear the system is showing savings.  We have a couple projects
coming up that are using or proposing VRF systems and it will be
interesting to see how the system operates in various climates.  I
imagine the VRF will perform better in certain climates.

With regards to endorsement from manufacturers, I know Martyn Dodd at
Energy Pro worked with Mitsubishi directly to develop the VRF module.

I agree with Mike on the baseline system choices.

Sam

--
Sam Mason
Atelier Ten
sam.mason at atelierten.com
 

-----Original Message-----
From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Travis
English
Sent: Monday, June 23, 2008 10:44 AM
To: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Modeling variable refrigerant flow system (VRF)
in

We've done some modeling of the VRF in EnergyPro.

The results are quite favorable, compared to traditional split systems.

Our understanding, as of last week, is that the module for modeling VRF
that is included in Trace is not endorsed by either of the major
manufacturers.
(Mitsubishi & Daikin) So, from their perspective, Energy Pro is
currently the ONLY way to model VRF.

We've had some internal debate as to what the corresponding 90.1
baseline system should be. I'd live to hear people's thoughts.

Travis R. English, P.E., LEED AP
Associate
TKSC 
    TSUCHIYAMA KAINO SUN & CARTER
Phone:  (949) 756-0565
Mobile:  (949) 735-6183
Email: <mailto:tenglish at tkscengineering.com>  


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