[TRNSYS-users] acceptable temperature range
Shahrdad JavidRad
shahrdad at live.de
Tue Feb 22 10:11:11 PST 2011
Hello,
in my solar thermal system I want to define an acceptable interval for the collector outlet temperature [65-80°C] by giving an output signal=1 for the pump in the collector loop. For any other temperatures out of this range the signal should be=0
For this purpose I am using an Equation block!! (Is there any controller, that is able to do it?)
I have defined these variables as:
T_min=65
T_max=80
T_out= collector outlet temperature
Signal=AND(GT(T_out,T_min),LT(T_out,T_max))*1+(1-AND(GT(T_out,T_min),LT(T_out,T_max)))*0
I have plotted the signal. It works fine but I am experiencing a very long simulation time. More than 15 minutes just for a week.
Is there any idea?
Thanks,
Shahrdad
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