Re: [TRNSYS-users] Heating and cooling control

[knut.erik.enerstvedt@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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