[EnergyPlus_Support] Tempering Valve in DHW loop with a solar tank [1 Attachment]

["ricci.richter@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>]

now with attachment :)

Hello everyone, 

to illustrate my issue I attached a sketch of my HVAC loops. 

In my case I want to benefit from solar collector in my DHW energy demand. But at the end ther is even a higher energy DHW demand due to the acting of the tempering valve. I implemented this valve to regulate the return flow of the DHW demand side and the outflow of the solar tank. Unfortunately there is a mass flow rate on the use side of the solar tank even though the temperature of the DHW demand side is higher than the solar tank temperature. So there is a cooling-down of my DHW return flow. 

Now I tend to implent an EMS that overwrites the original behavior of the tempering valve. Any idea ? 

I'd be grateful for any advice!

Thanks in advance.

Regards, 

Christian R.

 

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Posted by: ricci.richter@xxxxxxxxx

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Attachment not found:
d:\eudora\attach\140828 HVAC Loops2.pdf