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1 | initial version |
There are a couple of reasons. 1. ElevatorCoreFlr1 ZN and LaundryRoomFlr1 ZN are not conditioned but they have high internal equipment load. The heat from the internal equipment loads can only escape the zones through conduction through the internal surfaces or the external envelope, which causes the high temperature in themselves and their adjacent zones. The HVAC system in the adjacent zones are not sized to account for the loads from neighbor zones. 2. The elevator's schedule fractions seem to be too high. I reviewed a couple of elevator energy consumption data sources and it seems the annual elevator consumption in the small hotel is an order of magnitude higher than those data. Table 4.21 in Thornton et al 2010 (https://www.energycodes.gov/sites/default/files/documents/BECP_Energy_Cost_Savings_STD2010_May2011_v00.pdf) documents the calculation about the elevator design power. I believe it is reasonable. So, the hourly schedule fractions should be reduced. Similar issues would be in LaundryRoomFlr1 ZN but the internal equipment load from laundry equipment is much lower. Our team will address these issues in the future release of the Measure. For now, if your interest is not the internal loads, I recommend you to make a temporary fix to change the Fraction Radiant below from 0.5 to 0. That should remove all heat to the space. See the object below. ElectricEquipment, Elevator Coreflr1 Elevator Lights/Fans Equipment, !- Name ElevatorCoreFlr1 ZN, !- Zone or ZoneList Name HotelSmall ELEV_LIGHT_FAN_SCH_ADD_DF, !- Schedule Name EquipmentLevel, !- Design Level Calculation Method 125, !- Design Level {W} , !- Watts per Zone Floor Area {W/m2} , !- Watts per Person {W/person} 0, !- Fraction Latent 0, !- Fraction Radiant 0, !- Fraction Lost General; !- End-Use Subcategory
Let me know if you have further questions.
2 | No.2 Revision |
There are a couple of reasons.
1.
Let me know if you have further questions.
3 | No.3 Revision |
There are a couple of reasons.
ElectricEquipment,
Elevator Coreflr1 Elevator Lights/Fans Equipment, !- Name
Name
ElevatorCoreFlr1 ZN, !- Zone or ZoneList Name
Name
HotelSmall ELEV_LIGHT_FAN_SCH_ADD_DF, !- Schedule Name
Name
EquipmentLevel, !- Design Level Calculation Method
Method
125, !- Design Level {W}
{W}
, !- Watts per Zone Floor Area {W/m2}
{W/m2}
, !- Watts per Person {W/person}
{W/person}
0, !- Fraction Latent
Latent
0, !- Fraction Radiant
Radiant
0, !- Fraction Lost
Lost
General; !- End-Use Subcategory
Let me know if you have further questions.