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Re: [TRNSYS-users] How to start a hotwater circulation simulation



Daniel -

Can you be a little more specific about your problem? Just saying it doesn't work when you add a building model does not give us much to go on when trying to help you solve the problem.

Regards,

Tim

---
Timothy P. McDowell
Executive Vice President
Thermal Energy System Specialists, LLC
22 N Carroll St, Suite 370
Madison, WI 53703
608-274-2577

On 2013-03-25 09:23, Daniel Luigart wrote:

Dear community,
 
I am new to TRNSYS and I am starting to work on a simulation which should represent the energy losses through the hot waterpipe system in a building. I am trying to figure out how handle this kind of issue.
 
One approach I already made was creating the circulation first, if that works I could "put" the network in the building by adding type 56 and connect it with all the existing pipes. So I started to create a very simple network with a water tank (type 4a), a pump (type 114 e.g.) and connect those with a few pipes (type 31), tee-piece diverter and mixer (type 11d/f)...So far so good, even though the result is meaningless, it worked.
But when I include a building created with TRBbuild it didn't work anymore.
 
Question: Has anyone ever had contact with this kind of simulation (hot water circulation etc.)? If so, how did you start?
There is defenitely a better and more accurate way to simulate a circulation like this, but how?
The aim is to add more details little by little, like a stratified fluid tank (type 60) and maybe a solar system which feeds the tank with a lower temperature as well.
 
Thank you very much in advance for your help. I would appreciate it very much.
 
Kind regards,
Daniel Luigart