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[EnergyPlus_Support] CAV and low temperature loop radiator, can't reach setpoint in autosize
Dear all,
I'm trying to model a low temperature loop for heating a zone which have a CAV air system. My problem is quite simple, but I can't find the solution. Imagine to have a zone heated by a radiator connected to a low temperature boiler. The inlet temperature for the radiator is 40°C. The zone has also a CAV that can make 3 ach. Everything is on autosize, the functioning priority is 1 for the CAV and 2 for the radiator.
I don't know why but the E+ seems to be not able to dimension correctly the heating radiator. The sizing parameters used by the radiator are the defaults provided by the IO_ref and the Eng_ref. The zone mean air temperature is really far from the 20°C temperature setpoint.
I upload also the .idf.
Thank you very much for your help,
Marco
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Posted by: m.aldegheri@xxxxxxxxx
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