[TRNSYS-users] Heating and cooling control

[knut.erik.enerstvedt at niva.no]

Hello,

If you know the heating and cooling load of a building, you can impose 
this directly on the fluid stream, for example by using Type 682 if you 
have the TESS Loads and structures library. The load needs to be on an 
hourly basis (kW), so if you only have a yearly energy consumption (kWh) 
you need to find a way to calculate an hourly distribution. If flow rate 
and heating/cooling temperatures are fixed, the varying load means that 
fluid return temperatures vary accordingly, which in turn affects the 
working conditions of the chiller.

Hope this helps a bit.

Best regards,
Knut Erik Enerstvedt
 

>Dear trnsys users, 
>I am student in mechanical engineering and I am writing my thesis about 
solar cooling,using Trnsys. At the moment i have a problem. 
>I have the heating and cooling load of a building, and I need to cool and 
heat it using an hot water flow rate during winter and a cold flow >rate 
during summer, produced with an abosrption chiller. How can I manage to 
simulate this conditioning system?I have cooling and >heating load, hot 
water and cooling flow rate with their temperature.
 
>Moreover, how can I vary the temperature of the two flow rates with the 
variabilty of load?
>Thank you in advance!
>Ricolàs Rey
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