Abstract
Diffuse ceiling ventilation uses perforations in the suspended ceiling to deliver air into the occupied zone. Due to the complex geometry of the diffuser, it is not possible to build an exact geometrical model in CFD simulation. Two numerical models are proposed in this study, one is a simplified geometrical model and the other is a porous media model. The numerical models are validated by the full-scale experimental studies in a climate chamber. The results indicate that porous media model performed better on predicting air flow characteristic below diffuse ceiling and air velocity near the floor. However, the simplified geometrical model shows superior performance on calculating the diffuse ceiling surface temperature.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 14th International Conference of the International Building Performance Simulation Association: IBPSA 2015 : Building Simulation 2015 |
| Number of pages | 8 |
| Place of Publication | Hyderabad |
| Publisher | The International Building Performance Simulation Association Conference |
| Publication date | 2015 |
| Article number | p2983 |
| Publication status | Published - 2015 |
| Event | 14th International Conference of the International Building Performance Simulation Association: IBPSA 2015 - Hyderabad, India Duration: 7 Dec 2015 → 9 Dec 2015 Conference number: 14 |
Conference
| Conference | 14th International Conference of the International Building Performance Simulation Association |
|---|---|
| Number | 14 |
| Country/Territory | India |
| City | Hyderabad |
| Period | 07/12/2015 → 09/12/2015 |
Keywords
- Ventilation
- Office Room
- Diffuse ceiling ventilation
- Airflow pattern
- CFD study