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[EnergyPlus_Support] Re: Water to water ground source heat pump without PA air
Where is the spreadsheet mention by Edwin. I am trying to create performance curves for water to water heat pumps based on the parameter estimation model. The paper is also difficult to understand.
Thank You!
Jay
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Edwin Lee <leeed2001@...> wrote:
>
> Dashamir:
> 1) WWHP: If you look at the EngineeringReference document, you can see the
> definitions for all coefficients and parameters for the water to water heat
> pump. Most likely your heat pump will not line up with the same
> coefficients as the example data, and this can lead to odd results. These
> coefficients must be developed from catalog data. There is a spreadsheet
> tool available to calculate coefficients, and an improved tool is being
> developed (almost beta stage) to develop these coefficients.
>
> 2) GLHE: The g-functions are very important to the stability of the GLHE
> model in E+. There is a dataset that includes some example g-functions for
> different borehole configurations. If you are doing anything in depth with
> boreholes, you will want to move to a separate software. A program called
> GLHEPro is available from Dr. Jeff Spitler at Oklahoma State University.
>
> Good luck...
> Edwin
>
> On Wed, Mar 18, 2009 at 8:25 AM, dashamir marini
> <dashamirmarini@...>wrote:
>
> > Hi Mr. James
> >
> > Saw your respond for Ashok, also I'm trying to do one simulation with
> > water-to-water heat pump systems, without combination of Purchased system.
> >
> > I'm having two troubles about this simulation:
> >
> > 1) The firs one is about Heat Pump Water to Water:EquationFit for
> > Heatin&Cooling input data,
> > in my case rated heating capacity is nearly 25000 W while in example file
> > is 34040,92 W.
> > My trouble is, can I use the same coefficients of GshpHeating and
> > GshpCooling used in example file
> > respectively for heating and coolin as in my example ? and how is defined
> > Rated Heating Power Consumption valuei example.
> >
> > 2) the second is about Grount Heat Exchanger Vertical similar trouble like
> > first. I dont know how have to determine the values of this object
> > for example: number ohf boreholes, bore hole length and radius, ground,
> > pipe, and fluid parameter parameters also G and LN/LTs values.
> >
> > In few word don't know how have to fill these object in my case which have
> > different heating/cooling capacity
> > and different site location so different ground parameters.
> >
> > thanks in advance
> >
> > waiting for your answer
> >
> > all the best
> > Dashamir
> >
> >
> >
> >
> > ------------------------------
> > *From:* James V. Dirkes II P.E. <jvd2pe@...>
> > *To:* EnergyPlus_Support@xxxxxxxxxxxxxxx; energyplus-support@...
> > *Sent:* Wednesday, March 11, 2009 12:28:34 PM
> > *Subject:* RE: [EnergyPlus_Support] Water to water ground source heat pump
> > without PA air
> >
> > Try "GroundHeatExchange r:Vertical"
> >
> >
> > *The Building Performance Team
> > **James V. Dirkes II, P.E., LEED AP
> > *1631 Acacia Drive NW
> > Grand Rapids, MI 49504
> > 616 450 8653
> >
> >
> >
> >
> > ------------------------------
> > *From:* EnergyPlus_Support@ yahoogroups. com [mailto:EnergyPlus_Support@yahoogro
> > ups.com] *On Behalf Of *ashok
> > *Sent:* Wednesday, March 11, 2009 1:46 AM
> > *To:* energyplus-support@ gard.com; EnergyPlus_Support@ yahoogroups. com
> > *Subject:* [EnergyPlus_ Support] Water to water ground source heat pump
> > without PA air
> >
> > Dear All
> >
> > Is it possible to simulate with Water to water ground source heat pump with
> >
> > vertical borehole ground loop heat exchanger without combination of
> > Purchased system.
> >
> > Thanks in advance
> > Ashok
> >
> >
> >
> >
>
------------------------------------
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