[TRNSYS-users] Energy (un)balance type 4

[Gorissen, R.]

Hallo Nick,

 

For this purpose you can use type28a, this type performs a simulation
summary and includes a Energy Balance check. The power added to the tank
has to come from an external source (e.g. heater or collector) (and not
output #11 from type4). You can refer to the trnsys manual or the
proforma (of type28a) for examples.

 

Regards,

raf

 

(I can not open your project, probably due to a different trnsys
version)

 

 

________________________________

Van: trnsys-users-bounces at engr.wisc.edu
[mailto:trnsys-users-bounces at engr.wisc.edu] Namens Nick van der Valk
Verzonden: Tuesday, November 28, 2006 10:56 AM
Aan: trnsys-users at engr.wisc.edu
Onderwerp: [TRNSYS-users] Energy (un)balance type 4

 

Dear trnsys users,

 

The energy flows for type 4 do not seem to balance in my simulation. If
I am correct, the change in internal energy (change of output #7) has to
be equal to the net power added (output #11 minus output #4 minus output
#6) times the simulation timestep. In the attached simulation, this sum
doesn't add up for all timestep. Can anyone figure out the reason?

 

Regards Nick

 

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dr. ir. N.C.J. van der Valk

Cauberg-Huygen Raadgevende Ingenieurs BV

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E-mail: mailto:n.vandervalk at chri.nl <mailto:n.vandervalk at chri.nl> 

 

 

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