David,
It depends a bit on what form the measured results are in. If your
results are in terms of flow rates then you can replace the existing
flow rate (water draw) forcing function in the example with the
combination of a Type9 data reader and some component (an equation
probably) that takes your daily results and turns them into hourly
(or timesteply) results. If your results are in terms of energy then
I would recommend looking at Type682 in the TESS Loads and
Structures Library. This component imposes a load on a liquid flow
stream. You'll again read the data with Type9 and will need to turn
the daily information into the fraction of the load seen at each
timestep. Then the energy rate will be imposed on the SDHW liquid
stream at the appropriate point.
Best,
david
On 1/26/2011 08:15, Redpath David wrote:
Dear all,
Does any one know how to add in a domestic hot water
load and space heating load to the TRNSYS SDHW model? I have
daily results from an actual experiment. Thanks in Advance.
Regards,
David
David Redpath
Lecturer energy storage
Room 22B04
Centre for Sustainable Technologies (CST)
School of the Built Environment
University of Ulster
Jordanstown Campus
Shore Road
Jordanstown
County Antrim
Newtownabbey
Northern Ireland
UK
BT37 0QB
(email) d.redpath@ulster.ac.uk
028 90366169 (lab)
http://www.cst.ulster.ac.uk/
-----Original Message-----
From: trnsys-users-bounces@cae.wisc.edu on behalf of SUNLIANG
CAO
Sent: Wed 26/01/2011 9:12 AM
To: nussbicker@itw.uni-stuttgart.de
Cc: trnsys-users@cae.wisc.edu
Subject: Re: [TRNSYS-users] Question about TRNSYS-SBM and Type
557 Vertical U-tube Ground Heat Exchanger
Thanks a lot for Janet and Lee's important information which
is very helpful for our work.
Kind Regards,
Cao Sunliang
> From: nussbicker@itw.uni-stuttgart.de
> To: caosunliang@msn.com
> CC: trnsys-users@cae.wisc.edu
> Subject: AW: [TRNSYS-users] Question about TRNSYS-SBM and
Type 557 Vertical U-tube Ground Heat Exchanger
> Date: Wed, 26 Jan 2011 09:04:28 +0100
>
> Hello,
>
> I have worked with the SBM (TRNSYS 16, I did some
programming work and it
> took me some time) and for an 1-year simulation with an
BTES with 528 BHE,
> solar collectors ... (no heat pump) it took about 12
hours. May be it's a
> little faster with newer computers.
>
> Best regards,
> Janet Nußbicker-Lux
>
>
> -----Ursprüngliche Nachricht-----
> Von: a8304506@graduate.hku.hk [mailto:a8304506@graduate.hku.hk]
> Gesendet: Dienstag, 25. Januar 2011 13:58
> An: SUNLIANG CAO
> Cc: trnsys-users@cae.wisc.edu
> Betreff: Re: [TRNSYS-users] Question about TRNSYS-SBM and
Type 557 Vertical
> U-tube Ground Heat Exchanger
>
> Hello, Cao.
>
> I have no information what the SBM is based on? I guess
it is developed
> from
> Eskilson's model or the finite line source model. If so,
I think the
> simulation time should not be too long (of course it will
be much longer
> than
> the DST model). I am currently using a three-dimensional
numerical model
> developed by myself and it occasionally takes days of
time to perform a
> ten-year simulation. Hence, I think the SBM model should
at most need hours
> of
> time. Concerning the conversion of the model to suit
TRNSYS 17, it should
> not
> be too complicated if you are familiar with Fortran.
>
> Best Regards
> LEE, Chun Kowng
>
> Quoting SUNLIANG CAO <caosunliang@msn.com>:
>
> >
> > Hi,
> >
> > Thank you very much for Lee's information.
> >
> > I have contacted our TRNSYS distributor as well as
the contact person of
> the
> > non-standard Type TRNSYS-SBM.
> >
> > We currently get the information that TRNSYS-SBM is
only available for
> TRNSYS
> > 15. And if we want to upgrade it to TRNSYS 17, it
seems that we need to do
> > some Fortron programming work.
> >
> > Is there anybody has the experience to use
TRNSYS-SBM in TRNSYS 17? Is it
> > very difficult to upgrade TRNYSYS-SBM so that it can
be compatible with
> > TRNSYS 17?
> >
> > >From some references, we also know that
sometimes it might be very
> > time-consuming to simulate with TRNSYS-SBM. Is there
anybody has the
> > experience of simulating a large scale ground source
heat pump system with
> > TRNSYS-SBM? How slow it might be (I know it depends,
but just want to know
> > some examples)?
> >
> > As the price for TRNSYS-SBM is not very cheap (and
there is no demo
> version
> > for that type), I just want to make sure it CAN be
effectively used in
> TRNSYS
> > 17.
> >
> > Thank you very much.
> >
> >
> > Kind Regards,
> > Cao Sunliang
> >
> >
> >
> >
> > > Date: Sat, 15 Jan 2011 08:40:37 +0800
> > > From: a8304506@graduate.hku.hk
> > > To: caosunliang@msn.com
> > > CC: trnsys-users@cae.wisc.edu
> > > Subject: Re: [TRNSYS-users] Question about
Type557 Vertical U-tube
> Ground
> > Heat Exchanger
> > >
> > > Hello, Cao.
> > >
> > > There is another component model, the borehole
superposition model
> (SBM),
> > which
> > > should be able to handle your problem.
> > >
> > > Best Regards
> > > LEE, Chun Kwong
> > >
> > > Quoting SUNLIANG CAO
<caosunliang@msn.com>:
> > >
> > > >
> > > > Hi,
> > > >
> > > > I have a question about Type557 Vertical
U-tube Ground Heat Exchanger
> in
> > GHP
> > > > Library (TESS Library).
> > > >
> > > > I found that Type557 has only one type of
distribution for the
> boreholes
> > in
> > > > the ground: the boreholes are uniformly
distributed within a
> cylindrical
> > > > storage volume of ground.
> > > >
> > > > However, if I want to simulate other
distribution types for the
> > boreholes,
> > > > such as distributed in a rectangle shape
area, triangle shape area,
> or
> > > > L-shape area, etc, how can I deal with
this problem?
> > > >
> > > > Is there any existing type in TRNSYS or
TESS Libraries dealing with
> the
> > > > Ground Heat Exchangers with different
configurations?
> > > >
> > > >
> > > > Thank you very much.
> > > >
> > > >
> > > > Kind Regards,
> > > > Cao Sunliang
> > > >
> > > >
> > >
> > >
> > >
> > >
> >
>
>
>
>
>
>
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