Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
You could put the secondary tank on the supply side of a second plant loop. Then connect the second plant loop to the first using fluid to fluid heat exchanger. Try to arrange the controls so the fluid HX only requests flow when the primary tank cannot meet its setpoint. Locate the HX just downstream of the primary tank and use component setpoint based operation.
