Re: [TRNSYS-users] TOTAL ENERGY BALANCE

[jeannieboef <jeannieboef@googlemail.com>]

You'll probably find that the sum that you see is just reflecting  
energy transmission over the building boundries from/to outside  
environment.

Because of the capacitive nature of a building to absorb heat during  
the day and slowly dissipate heat at night and summer/winter for that  
matter, you may find that energy rate in is not always equal to energy  
rate out.

This report is probably intended to give you an idea or feeling where  
the main energy gains/losses are occuring.

Sent from my iPhone

On 07.05.2012, at 20:05, Alessandro Rinaldi <alexius87@hotmail.it>  
wrote:

> Hi, I want to calculate the energy demand for heating  in a  
> building. In TRNbuild I put all the packages and set ventilation  
> (0.3 / hr), heating (20 ° C), cooling (26 ° C) and various internal  
> gains.  I entered the Type N.905 as output and then I opened the fil 
> e  ENERGY_TOT with excel. But the Total Energy Balance is different  
> from zero for all the hours and the values ​​are very high as  
> well so all the power values ​​(DQair, Qheat, Qcool etc. ..). How  
> is it possible that the energy balance is not zero? How can I solve  
> this problem? Thanks
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