Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Are you sure there's only one boilers assigned to your the high-rise? The building peak capacity 92 MW, but the boiler capacity is significantly less at 10 MW, so the highrise boiler isn't serving your entire building. If we assume a boiler per floor in the highrise, then the recalculated normalized capacity is (9.993M-W / (436000-ft2 / 18-lvls) = 412 W/ft2. This is 20X higher then lowrise, which aligns the relative size of the boiler and peak loads.
I'm not sure if it's reasonable for boiler capacity of a single highrise floor to be so much higher then your lowrise, (although I'll note the more thermal zones you have, the more likely the simultaneous peak will diverge from the sum of zone-level peaks). This might be easier to confirm/debug without the zone multipliers.
| | 2 | No.2 Revision |
Are you sure there's only one boilers assigned to your the high-rise? The building peak capacity 92 MW, but the boiler capacity is significantly less at 10 MW, so the highrise boiler isn't serving your entire building. If we assume a boiler per floor in the highrise, then the recalculated normalized capacity is (9.993M-W / (436000-ft2 / 18-lvls) = 412 W/ft2. This is 20X higher then lowrise, which aligns the relative size of the boiler and peak loads.
I'm not sure if it's reasonable for boiler capacity of a single highrise floor to be so much higher then your lowrise, (although I'll note the more thermal zones you have, the more likely the simultaneous peak will diverge from the sum of zone-level peaks). lowrise. This might be easier to confirm/debug without the zone multipliers. multipliers.
| | 3 | No.3 Revision |
Are you sure there's only one boilers assigned to your the high-rise? The coincidental building peak capacity is 92 MW, but the boiler capacity is significantly less at 10 MW, so the highrise boiler isn't serving your entire building. If we assume a boiler per floor in the highrise, then the recalculated normalized capacity is (9.993M-W / (436000-ft2 / 18-lvls) = 412 W/ft2. This is 20X higher then lowrise, which aligns the relative size of the boiler and peak loads.
I'm not sure if it's reasonable for boiler capacity of a single highrise floor to be so much higher then your lowrise. This might be easier to confirm/debug without the zone multipliers.
