Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
You cannot actually "pressurize" the zone, but you can supply more air than is exhausted or vice versa. Several things should be considered:
1) the unmet hours value is created based solely on whether the space is occupied (any non-zero number of people are present, including 0.01 people ) and whether the space is able to attain the setpoint point value (plus / minus the tolerance you specify)
2) That means you must provide adequate heating or cooling for the zone loads ... with supply air.
3) When the supply and exhaust airflows are not balanced, E+ gives warnings to that effect. As long as you intend the imbalance, they can be ignored.
4) There are two objects which purpose is to allow cross zone mixing (air moving from one zone to another instead of directly back to the air loop). These are: Zone:Mixing and Zone:CrossMixing. Check these out for applicability to your project. It sounds as though they will be helpful.
| | 2 | No.2 Revision |
You cannot actually "pressurize" the zone, but you can supply more air than is exhausted or vice versa. Several things should be considered:
1) the unmet hours value is created based solely on whether the space is occupied (any non-zero number of people are present, including 0.01 people ) and whether the space is able to attain the setpoint point value (plus / minus the tolerance you specify)
2) That means you must provide adequate heating or cooling for the zone loads ... with supply air.
3) When the supply and exhaust airflows are not balanced, E+ gives warnings to that effect. As long as you intend the imbalance, they can be ignored.
4) There are two objects which purpose is to allow cross zone mixing (air moving from one zone to another instead of directly back to the air loop). These are: Zone:Mixing ZoneMixing and Zone:CrossMixing. ZoneCrossMixing. Check these out for applicability to your project. It sounds as though they will be helpful.
