[TRNSYS-users] Question about TRNSYS-SBM and Type 557 Vertical U-tube Ground Heat Exchanger

[SUNLIANG CAO]

Thanks a lot for Janet and Lee's important information which is very helpful for our work.

Kind Regards,
Cao Sunliang

 

> From: nussbicker at itw.uni-stuttgart.de
> To: caosunliang at msn.com
> CC: trnsys-users at 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 at graduate.hku.hk [mailto:a8304506 at graduate.hku.hk] 
> Gesendet: Dienstag, 25. Januar 2011 13:58
> An: SUNLIANG CAO
> Cc: trnsys-users at 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 at 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 at graduate.hku.hk
> > > To: caosunliang at msn.com
> > > CC: trnsys-users at 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 at 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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