[TRNSYS-users] Storage tank type 4

David BRADLEY via TRNSYS-users trnsys-users at lists.onebuilding.org
Sun May 14 20:15:01 PDT 2017


Over the course of the year usually the energy balance works out fairly 
well. However, if there is a difference in the amount of energy stored 
in the tank at the beginning of the simulation and at the end of the 
simulation, you have to account for that in your energy balance. Type4 
has an output for this value. Also, it may be that you are adding 
auxiliary energy to the tank. Type4 has a number of modes in which it 
can automatically keep itself at a set point temperatures.

kind regards,

  David



On 05/12/2017 23:27, Rm Chemilo via TRNSYS-users wrote:
> Dear all,
>
> I'm doing simulation for domestic water heating by using solar 
> collector, hx, and storage tank(without auxiliary heater). Then after 
> plotting storage tank energy balance for one year, I found heat in 874 
> MWh, heat out 811MWh, thermal losses 101MWh. Why the thermal losses is 
> not qin-qout? Can anyone help me?
>
> Thanks
>
>
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> TRNSYS-users at lists.onebuilding.org
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-- 
***************************
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

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