Effects of Inlet Air diffusers’ Arrangementon the performance of Displacement ventilation system based on thermal comfort conditions, indoor air quality and Energy consumption in a dense occupancy environment

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Afzalian M.; Zolfaghari S. A. R.

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Paper Information

Journal: JOURNAL OF MECHANICAL ENGINEERING Year:2019 | Volume:49 | Issue:1 (86) Page(s): 21-30

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Title

Effects of Inlet Air diffusers’ Arrangementon the performance of Displacement ventilation system based on thermal comfort conditions, indoor air quality and Energy consumption in a dense occupancy environment

Author(s)

Afzalian M. | Zolfaghari S. A. R. | Issue Writer Certificate

Keywords

Displacement ventilation

Indoor air quality

Thermal comfort

Energy consumption

dense occupancy environment

Abstract

In dense occupancy spaces, providing the proper conditions especially as Indoor air quality is very important. On the other hand, in most air distribution systems, the ventilation performance and energy saving parameters are greatly influenced by the arrangements of supply diffuser positions. Therefore, in this study, the effects of supply diffuser positions on Thermal comfort, Indoor air quality and Energy consumption in an amphitheater have been investigated. For this issue, a small amphitheater with 50 occupants has been modeled under the conditions that the linear air inlet diffusers located in four situations. The results indicate that the Displacement ventilation can provide the proper conditions. However, by changing the location of supply diffuser positions, IAQ and occupants comfort can be improved. For example, for the inlet diffusers are located vertically on the floor, relative ventilation effectiveness is improved about 20% and CO2concentration is decreased about10% in comparison with the other cases.

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APA: Copy

Afzalian, M., & Zolfaghari, S. A. R.. (2019). Effects of Inlet Air diffusers’ Arrangementon the performance of Displacement ventilation system based on thermal comfort conditions, indoor air quality and Energy consumption in a dense occupancy environment. JOURNAL OF MECHANICAL ENGINEERING, 49(1 (86) ), 21-30. SID. https://sid.ir/paper/269962/en

Vancouver: Copy

Afzalian M., Zolfaghari S. A. R.. Effects of Inlet Air diffusers’ Arrangementon the performance of Displacement ventilation system based on thermal comfort conditions, indoor air quality and Energy consumption in a dense occupancy environment. JOURNAL OF MECHANICAL ENGINEERING[Internet]. 2019;49(1 (86) ):21-30. Available from: https://sid.ir/paper/269962/en

IEEE: Copy

M. Afzalian, and S. A. R. Zolfaghari, “Effects of Inlet Air diffusers’ Arrangementon the performance of Displacement ventilation system based on thermal comfort conditions, indoor air quality and Energy consumption in a dense occupancy environment,” JOURNAL OF MECHANICAL ENGINEERING, vol. 49, no. 1 (86) , pp. 21–30, 2019, [Online]. Available: https://sid.ir/paper/269962/en

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