[TRNSYS-users] Type 6 or Type 659

David BRADLEY d.bradley at tess-inc.com
Mon May 12 11:08:44 PDT 2014

  Type659 assess the thermal losses from the heater if there is flow 
through the heater is not on (ie when the liquid is coming in hotter 
than the setpoint). Type6 sets those losses to zero. Yes, a negative 
energy delivered output from Type659 indicates that energy was removed 
from the liquid stream. You'll notice that the energy "delivered" and 
the loss term balance each other under that case.
Kind regards,

On 5/12/2014 05:25, Barto Pene wrote:
> Hi,
> In my system I have aux.heater and I use Type 6, but also I tried with 
> the Type 659.
> My question is why with the same parameters for the aux.heaters I get 
> different results? ( bigger energy delivered with Type 659) ?
> When in the result is "negative" delivered energy, does it mean that 
> at that moment the temp. at the inlet of the heater was bigger than 
> the set?
> Kind Regards
> Barto
> _______________________________________________
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> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users

Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

d.bradley at tess-inc.com


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