NIST Multizone Modeling Website
Airflow Elements Chart
This chart presents the flow element libraries:
ASHRAELA.lb3, RESMISC.lb3, C&ISUM.lb3 C&IMISC.lb3, as
well as others. The first two contain flow elements relevant to residential
buildings, and the other two apply to commercial, institutional and
high-rise residential buildings. Within the libraries, each element name
consists of four parts: component, descriptors (most names will have more
than one descriptor), generic building type, and tightness value. The
component and descriptor parts of the name will be separated from building
type and value by an underscore "_". The following are the
abbreviations used to create the flow elements names:
| Components: | |||||
| CE | Ceiling | FP | Fireplace | RF | Roof |
| CH | Chimney | FR | Frame | VE | Vent |
| DR | Door | IT | Interface | WH | Water heater |
| DW | Doorway | JT | Joint | WL | Wall |
| FL | Floor | PE | Penetrations | WN | Window |
Descriptors: |
|||||
| 2W | Two way | DY | Dryer | PA | Partition |
| air flow | EC | Electrical outlet | PC | Precast concrete | |
| AL | Aluminum | or switch | PL | Plumbing | |
| AP | Apartment | EL | Elevator | PT | Patio |
| AR | Per unit area | EX | Exterior | RE | Shopping mall |
| AS | Assembly | FD | Fold Down | retail store | |
| AT | Attic | FR | Frame | RL | Recessed Light |
| BA | Bathroom | GA | Garage | RS | Restaurant |
| BL | Block | GL | Glass | SC | School |
| BR | Brick | GS | Gas | SH | Single hung |
| CA | Caulked, sealed | HA | Hall | SI | Single |
| or gasketed | HC | Healthcare | SL | Slider or sliding | |
| CASE | Casement | ID | Industrial | SM | Storm |
| CC | Cast-in-place | IN | Interior | SN | Stone |
| concrete | IO | Inoperable | SP | Sports | |
| CK | Crack | IS | Insulation | SR | Stair/stairwell |
| CL | Closed | JA | Jalousie | ST | Steel |
| CO | Concrete | KI | Kitchen | TI | Tile |
| CP | Concretepanel | MA | Masonry | UC | Uncaulked |
| CR | Corner | ME | Metal | UN | Perunititem |
| CS | CrawlSpace | MN | Manufactured | WD | Wood |
| CT | Closet | NO | No | WE | Weather- |
| CW | Curtainwall | NW | NotWeather- | stripped | |
| DA | Damper | stripped | WF | Wholehouse | |
| DB | Doubleor | OO | Operable | fan | |
| doublehung | OP | Open | YE | Yes | |
| DE | Difference | ||||
| DW | Ductwork | ||||
Generic BuildingTypes: |
|||||
| C | Commercial | N | Industrial | ||
| I | Institutional | R | Residential | ||
| M | ManufacturedHouse | ||||
Values: |
|||||
| AV | Averageor | +S | Meanplusonestandarddeviation | ||
| bestestimate | -S | Meanminusonestandarddeviation | |||
| MN | Minimum | ||||
| MX | Maximum | ||||
For example, a flow element designated as DRINCTCL_RAV would refer to a closed interior closet door in a residential building with an average tightness value.
