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<br>Thanks a lot for Janet and Lee's important information which is very helpful for our work.<br><br>Kind Regards,<br>Cao Sunliang<br><br> <br><br>> From: nussbicker@itw.uni-stuttgart.de<br>> To: caosunliang@msn.com<br>> CC: trnsys-users@cae.wisc.edu<br>> Subject: AW: [TRNSYS-users] Question about TRNSYS-SBM and Type 557 Vertical U-tube Ground Heat Exchanger<br>> Date: Wed, 26 Jan 2011 09:04:28 +0100<br>> <br>> Hello, <br>> <br>> I have worked with the SBM (TRNSYS 16, I did some programming work and it<br>> took me some time) and for an 1-year simulation with an BTES with 528 BHE,<br>> solar collectors ... (no heat pump) it took about 12 hours. May be it's a<br>> little faster with newer computers. <br>> <br>> Best regards,<br>> Janet Nußbicker-Lux<br>> <br>> <br>> -----Ursprüngliche Nachricht-----<br>> Von: a8304506@graduate.hku.hk [mailto:a8304506@graduate.hku.hk] <br>> Gesendet: Dienstag, 25. Januar 2011 13:58<br>> An: SUNLIANG CAO<br>> Cc: trnsys-users@cae.wisc.edu<br>> Betreff: Re: [TRNSYS-users] Question about TRNSYS-SBM and Type 557 Vertical<br>> U-tube Ground Heat Exchanger<br>> <br>> Hello, Cao.<br>> <br>> I have no information what the SBM is based on? I guess it is developed<br>> from<br>> Eskilson's model or the finite line source model. If so, I think the<br>> simulation time should not be too long (of course it will be much longer<br>> than<br>> the DST model). I am currently using a three-dimensional numerical model<br>> developed by myself and it occasionally takes days of time to perform a<br>> ten-year simulation. Hence, I think the SBM model should at most need hours<br>> of<br>> time. Concerning the conversion of the model to suit TRNSYS 17, it should<br>> not<br>> be too complicated if you are familiar with Fortran.<br>> <br>> Best Regards<br>> LEE, Chun Kowng<br>> <br>> Quoting SUNLIANG CAO <caosunliang@msn.com>:<br>> <br>> > <br>> > Hi,<br>> > <br>> > Thank you very much for Lee's information.<br>> > <br>> > I have contacted our TRNSYS distributor as well as the contact person of<br>> the<br>> > non-standard Type TRNSYS-SBM.<br>> > <br>> > We currently get the information that TRNSYS-SBM is only available for<br>> TRNSYS<br>> > 15. And if we want to upgrade it to TRNSYS 17, it seems that we need to do<br>> > some Fortron programming work.<br>> > <br>> > Is there anybody has the experience to use TRNSYS-SBM in TRNSYS 17? Is it<br>> > very difficult to upgrade TRNYSYS-SBM so that it can be compatible with<br>> > TRNSYS 17? <br>> > <br>> > >From some references, we also know that sometimes it might be very<br>> > time-consuming to simulate with TRNSYS-SBM. Is there anybody has the<br>> > experience of simulating a large scale ground source heat pump system with<br>> > TRNSYS-SBM? How slow it might be (I know it depends, but just want to know<br>> > some examples)?<br>> > <br>> > As the price for TRNSYS-SBM is not very cheap (and there is no demo<br>> version<br>> > for that type), I just want to make sure it CAN be effectively used in<br>> TRNSYS<br>> > 17.<br>> > <br>> > Thank you very much.<br>> > <br>> > <br>> > Kind Regards,<br>> > Cao Sunliang<br>> > <br>> > <br>> > <br>> > <br>> > > Date: Sat, 15 Jan 2011 08:40:37 +0800<br>> > > From: a8304506@graduate.hku.hk<br>> > > To: caosunliang@msn.com<br>> > > CC: trnsys-users@cae.wisc.edu<br>> > > Subject: Re: [TRNSYS-users] Question about Type557 Vertical U-tube<br>> Ground<br>> > Heat Exchanger<br>> > > <br>> > > Hello, Cao.<br>> > > <br>> > > There is another component model, the borehole superposition model<br>> (SBM),<br>> > which<br>> > > should be able to handle your problem.<br>> > > <br>> > > Best Regards<br>> > > LEE, Chun Kwong<br>> > > <br>> > > Quoting SUNLIANG CAO <caosunliang@msn.com>:<br>> > > <br>> > > > <br>> > > > Hi,<br>> > > > <br>> > > > I have a question about Type557 Vertical U-tube Ground Heat Exchanger<br>> in<br>> > GHP<br>> > > > Library (TESS Library).<br>> > > > <br>> > > > I found that Type557 has only one type of distribution for the<br>> boreholes<br>> > in<br>> > > > the ground: the boreholes are uniformly distributed within a<br>> cylindrical<br>> > > > storage volume of ground.<br>> > > > <br>> > > > However, if I want to simulate other distribution types for the<br>> > boreholes,<br>> > > > such as distributed in a rectangle shape area, triangle shape area,<br>> or<br>> > > > L-shape area, etc, how can I deal with this problem?<br>> > > > <br>> > > > Is there any existing type in TRNSYS or TESS Libraries dealing with<br>> the<br>> > > > Ground Heat Exchangers with different configurations?<br>> > > > <br>> > > > <br>> > > > Thank you very much.<br>> > > > <br>> > > > <br>> > > > Kind Regards,<br>> > > > Cao Sunliang<br>> > > > <br>> > > > <br>> > > <br>> > > <br>> > > <br>> > > <br>> > <br>> <br>> <br>> <br>> <br>> <br>> <br> </body>
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