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

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

3 Citationer (Scopus)

Resumé

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.
OriginalsprogEngelsk
TitelProceedings of the 14th International Conference of the International Building Performance Simulation Association: IBPSA 2015 : Building Simulation 2015
Antal sider8
Udgivelses stedHyderabad
ForlagThe International Building Performance Simulation Association Conference
Publikationsdato2015
Artikelnummerp2983
StatusUdgivet - 2015
Begivenhed14th International Conference of the International Building Performance Simulation Association: IBPSA 2015 - Hyderabad, Indien
Varighed: 7 dec. 20159 dec. 2015
Konferencens nummer: 14

Konference

Konference14th International Conference of the International Building Performance Simulation Association
Nummer14
LandIndien
ByHyderabad
Periode07/12/201509/12/2015

Fingerprint

Ceilings
Ventilation
Computational fluid dynamics
Porous materials
Numerical models
Air
Geometry
Temperature

Emneord

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

Citer dette

Zhang, C., Chen, Q., Heiselberg, P. K., & Pomianowski, M. Z. (2015). Airflow Pattern and Performance Analysis of Diffuse Ceiling Ventilation in an Office Room using CFD Study. I Proceedings of the 14th International Conference of the International Building Performance Simulation Association: IBPSA 2015: Building Simulation 2015 [p2983] Hyderabad: The International Building Performance Simulation Association Conference.
Zhang, Chen ; Chen, Qingyan ; Heiselberg, Per Kvols ; Pomianowski, Michal Zbigniew. / Airflow Pattern and Performance Analysis of Diffuse Ceiling Ventilation in an Office Room using CFD Study. Proceedings of the 14th International Conference of the International Building Performance Simulation Association: IBPSA 2015: Building Simulation 2015. Hyderabad : The International Building Performance Simulation Association Conference, 2015.
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title = "Airflow Pattern and Performance Analysis of Diffuse Ceiling Ventilation in an Office Room using CFD Study",
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.",
keywords = "Ventilation, Office Room, Diffuse ceiling ventilation, Airflow pattern, CFD study, Ventilation, Office Room, Diffuse ceiling ventilation, Airflow pattern, CFD study",
author = "Chen Zhang and Qingyan Chen and Heiselberg, {Per Kvols} and Pomianowski, {Michal Zbigniew}",
year = "2015",
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booktitle = "Proceedings of the 14th International Conference of the International Building Performance Simulation Association: IBPSA 2015",
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Zhang, C, Chen, Q, Heiselberg, PK & Pomianowski, MZ 2015, Airflow Pattern and Performance Analysis of Diffuse Ceiling Ventilation in an Office Room using CFD Study. i Proceedings of the 14th International Conference of the International Building Performance Simulation Association: IBPSA 2015: Building Simulation 2015., p2983, The International Building Performance Simulation Association Conference, Hyderabad, Hyderabad, Indien, 07/12/2015.

Airflow Pattern and Performance Analysis of Diffuse Ceiling Ventilation in an Office Room using CFD Study. / Zhang, Chen; Chen, Qingyan; Heiselberg, Per Kvols; Pomianowski, Michal Zbigniew.

Proceedings of the 14th International Conference of the International Building Performance Simulation Association: IBPSA 2015: Building Simulation 2015. Hyderabad : The International Building Performance Simulation Association Conference, 2015. p2983.

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

TY - GEN

T1 - Airflow Pattern and Performance Analysis of Diffuse Ceiling Ventilation in an Office Room using CFD Study

AU - Zhang, Chen

AU - Chen, Qingyan

AU - Heiselberg, Per Kvols

AU - Pomianowski, Michal Zbigniew

PY - 2015

Y1 - 2015

N2 - 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.

AB - 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.

KW - Ventilation

KW - Office Room

KW - Diffuse ceiling ventilation

KW - Airflow pattern

KW - CFD study

KW - Ventilation

KW - Office Room

KW - Diffuse ceiling ventilation

KW - Airflow pattern

KW - CFD study

UR - http://www.bs2015.in/files/BS2015_Proceeding.pdf

UR - http://www.ibpsa.org/proceedings/BS2015/p2983.pdf

M3 - Article in proceeding

BT - Proceedings of the 14th International Conference of the International Building Performance Simulation Association: IBPSA 2015

PB - The International Building Performance Simulation Association Conference

CY - Hyderabad

ER -

Zhang C, Chen Q, Heiselberg PK, Pomianowski MZ. Airflow Pattern and Performance Analysis of Diffuse Ceiling Ventilation in an Office Room using CFD Study. I Proceedings of the 14th International Conference of the International Building Performance Simulation Association: IBPSA 2015: Building Simulation 2015. Hyderabad: The International Building Performance Simulation Association Conference. 2015. p2983