Airflow Pattern and Performance Analysis of Diffuse Ceiling Ventilation in an Office Room using CFD Study

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

3 Citations (Scopus)

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 languageEnglish
Title of host publicationProceedings of the 14th International Conference of the International Building Performance Simulation Association: IBPSA 2015 : Building Simulation 2015
Number of pages8
Place of PublicationHyderabad
PublisherThe International Building Performance Simulation Association Conference
Publication date2015
Article numberp2983
Publication statusPublished - 2015
Event14th International Conference of the International Building Performance Simulation Association: IBPSA 2015 - Hyderabad, India
Duration: 7 Dec 20159 Dec 2015
Conference number: 14

Conference

Conference14th International Conference of the International Building Performance Simulation Association
Number14
CountryIndia
CityHyderabad
Period07/12/201509/12/2015

Keywords

  • Ventilation
  • Office Room
  • Diffuse ceiling ventilation
  • Airflow pattern
  • CFD study

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