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[TRNSYS-users] mass balance error



Hi,

I'm using trnsys to model a part of an HVAC system. You can see in the attached file the configuration of the circuit (ACS-project). The purpose is to have the temperature in the "Bollitore-B1" equal to 50°C.

I have flow rates coming from the "Puffer" and from the "Boiler" and going to the HX of the "Bollitore" passing through the "Pump - P10" but it seems like the mass balance of this circuit is not respected (the total mass out of the pump is not equal to the sum of the two mass flows entering the mixing valve)

AND

I would like to make the mixing valve working as a switching valve (either the flow rate from the Puffer or from the Boiler should be allowed) : how can I reach this goal?

I hope you can help me.

Best regards

Stefania Agosta

Attachment: ACS_project.pdf
Description: Adobe PDF document