[TRNSYS-users] Horizontal Cuboid Rock Bed Storage

[David BRADLEY]

Andreas,
   The rock bed model takes the rock bed cross sectional area, length 
(in the flow direction), and perimeter as parameters so that there is no 
assumption about the configuration of the bed geometry. With these 
parameters, you can model any shape you wish. The stratification in the 
bed is driven entirely by the forced flow of air and not by any natural 
buoyancy so I think that while the documentation presents the bed as 
being vertically stratified, in fact the stratification is entirely 
along the flow path. Thus it is okay to model a horizontal configuration 
in which you have air inlets at either end instead of at the top and 
bottom. My only caution in this is that the environmental temperature is 
assumed to be the same on all sides of the rock bed so the one 
inaccuracy might be if your rock bed sits on a floor such that one side 
of it is subject to a different environmental condition.
Kind regards,
  David


On 7/11/2012 03:09, Andreas Hartmann wrote:
> Dear All,
>
> I got a problem in using Type 10 Rock Bed Storage. In Volume 5 
> Mathematical Reference is defined as an vertical zylindric storage. Is 
> there any possibility to use Type 10 for horizontal cuboid thermal 
> storage or is there another type to simulate a horizontal cuboid rock 
> bed storage?
>
> Thank you in advance.
>
> Best Regards
> Andreas M. Hartmann
> -- 
> M.Sc. Dipl.-Ing. (FH)
> Hochschule für Technik und Wirtschaft
> Wilhelminenhofstr. 75A
> 12459 Berlin
> Tel. +49 30 - 501 935 39
>
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users

-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com



-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20120711/85b27d69/attachment-0005.htm>