TABLE I.
A summary of all the simulation case setups and the corresponding particle (aerosol) distribution after a 50-min simulation period. Note that the particle distribution includes the percentages of particles extracted by air cleaners, by the horizontal unit ventilator (HUV), suspended in the air, and deposit on the wall after 50-min simulation.
| Infector location | Air cleaner location | Aerosol distribution after a 50-min simulation | |||||
|---|---|---|---|---|---|---|---|
| Extracted by air cleaner | Extracted by ventilation (%) | Suspended (%) | Deposit on the wall (%) | ||||
| Baseline | Case A | A | NA | NA | 5 | 15 | 80 |
| Case B | B | NA | NA | 8 | 13 | 79 | |
| Placement effect | Case A1 | A | 1 | 43% | 3 | 3 | 51 |
| Case A2 | A | 2 | 41% | 4 | 7 | 48 | |
| Case A3 | A | 3 | 19% | 6 | 9 | 66 | |
| Case A4 | A | 4 | 14% | 5 | 12 | 69 | |
| Case B1 | B | 1 | 24% | 2 | 10 | 64 | |
| Case B2 | B | 2 | 75% | 2 | 1 | 22 | |
| Case B3 | B | 3 | 27% | 6 | 7 | 60 | |
| Case B4 | B | 4 | 24% | 6 | 7 | 63 | |
| Case A12 | A | 1 and 2 | 53% | 1 | 2 | 44 | |
| Case B12 | B | 1 and 2 | 84% | 2 | 1 | 13 | |
| Flow direction | Case FA2 | A | 2a | 24% | 4 | 6 | 66 |
| Case FB2 | B | 2a | 16% | 3 | 8 | 73 | |
| Ventilation effect | Case VA | A | NA | NA | 5 | 12 | 83 |
| Case VB | B | NA | NA | 8 | 12 | 80 | |
| Room size effect | Case LB | B | NA | NA | 11 | 14 | 75 |
| Case LB2 | B | 2 | 20% | 10 | 8 | 62 | |
| Case LB22 | B | 2 and 2 | 35% | 5 | 8 | 52 | |
| Case LB12 | B | 1 and 2 | 28% | 12 | 6 | 54 | |
| Thermal effect | Case TA2 | A | 2 | 41% | 3 | 9 | 41 |
| Case TB2 | B | 2 | 65% | 1 | 4 | 30 | |
| Case TA2H | A | 2b | 26% | 3 | 10 | 61 | |
| Case TB2H | B | 2b | 78% | 1 | 1 | 20 | |
a
Represents the air cleaner with upward flow design.
b
Represents placing the air cleaner 1.3 m above the ground.