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Process Heating - Energy Balance Issues


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Yes, should have sent this. Tank losses are taken into account. Is the unbalance due to undersized storage

because in reality there will be no storage but there is an electric boiler backup to the process flow that turns

on if solar can not supply the 135 F temps needed ?

Thank you for your response.

Best Regards,



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Hi Eric,

our simulation is based on intervals with a length of 6 minutes.

If some temperatures or volume flows change to abruptly, 

we reduce the interval to 1 minute.

In your scenario you have large volume flows. If the 

tank's volume is exchanged completedly within a simulation

intervall (6 or 1 minute), we will get balance errors.

The system A13 is not suited to simulate with such

a small tank.

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