[TRNSYS-users] energy consumption comparison

[David BRADLEY]

Eva,
   They probably won't be very comparable and they shouldn't be but 
they're both still useful in getting at what you're looking for. The 
sensible heating energy output from Type56 is the amount of energy that 
is required by the space in order to maintain temperature. The required 
boiler energy is the amount of source energy that has to be purchased in 
order to run the boiler and provide that amount of energy to the zone. 
The difference between the two is the system inefficiency. The required 
boiler energy must be higher than the sensible heating requirement from 
Type56. If it is, then that is an indication that the boiler isn't 
providing enough energy to keep the space heated. The boiler should also 
have an output that is the amount of energy actually transferred to the 
fluid. This value should match the sensible heating demand better; the 
difference in this case is the inefficiency of the pumping and 
distribution systems.
Best,
  David


On 8/25/2012 11:15, Eva gklezakou wrote:
> Dear Sirs,
>
> I model a house with the ideal heating system which is used in type 56 
> and then I integrate to the same house underfloor heating with solar 
> panel and boiler (auxiliary heater). The next step is to compare the 
> energy consumption between the two cases. Does anyone know what is the 
> relation between the two outputs, Sensible Heating energy for the 
> first case and Required energy boiler input for the second case. How 
> can I make these two values comparable?
> Thank you for the help.
>
> Regards,
> Eva
>
>
> _______________________________________________
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> 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

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