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Experimental Investigation of the Ventilation Performance of Different Air Distribution Systems in an Office Environment—Cooling Mode

Author

Listed:
  • Arman Ameen

    (Department of Building Engineering, Energy Systems and Sustainability Science, University of Gävle, 801 76 Gävle, Sweden)

  • Mathias Cehlin

    (Department of Building Engineering, Energy Systems and Sustainability Science, University of Gävle, 801 76 Gävle, Sweden)

  • Ulf Larsson

    (Department of Building Engineering, Energy Systems and Sustainability Science, University of Gävle, 801 76 Gävle, Sweden)

  • Taghi Karimipanah

    (Department of Building Engineering, Energy Systems and Sustainability Science, University of Gävle, 801 76 Gävle, Sweden)

Abstract

The performance of a newly designed corner impinging jet air distribution method with an equilateral triangle cross section was evaluated experimentally and compared to that of two more traditional methods (mixing and displacement ventilation). At nine evenly chosen positions with four standard vertical points, air velocity, turbulence intensity, temperature, and tracer gas decay measurements were conducted for all systems. The results show that the new method behaves as a displacement ventilation system, with high air change effectiveness and stratified flow pattern and temperature field. Both local air change effectiveness and air exchange effectiveness of the corner impinging jet showed high quality and promising results, which is a good indicator of ventilation effectiveness. The results also indicate that there is a possibility to slightly lower the airflow rates for the new air distribution system, while still meeting the requirements for thermal comfort and indoor air quality, thereby reducing fan energy usage. The draught rate was also lower for corner impinging jet compared to the other tested air distribution methods. The findings of this research show that the corner impinging jet method can be used for office ventilation.

Suggested Citation

  • Arman Ameen & Mathias Cehlin & Ulf Larsson & Taghi Karimipanah, 2019. "Experimental Investigation of the Ventilation Performance of Different Air Distribution Systems in an Office Environment—Cooling Mode," Energies, MDPI, vol. 12(7), pages 1-15, April.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:7:p:1354-:d:221047
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    Citations

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    Cited by:

    1. Zhonghua Zhang & Lingjie Zeng & Huixian Shi & Hua Liu & Wenjun Yin & Haowen Shen & Libin Yang & Jun Gao & Lina Wang & Yalei Zhang & Xuefei Zhou, 2021. "CFD Study on the Ventilation Effectiveness in a Public Toilet under Three Ventilation Methods," Energies, MDPI, vol. 14(24), pages 1-25, December.
    2. Harald Andersson & Mathias Cehlin & Bahram Moshfegh, 2022. "A Numerical and Experimental Investigation of a Confluent Jets Ventilation Supply Device in a Conference Room," Energies, MDPI, vol. 15(5), pages 1-30, February.
    3. Yaming Fan & Xiangdong Li & Minfeng Zheng & Rengui Weng & Jiyuan Tu, 2020. "Numerical Study on Effects of Air Return Height on Performance of an Underfloor Air Distribution System for Heating and Cooling," Energies, MDPI, vol. 13(5), pages 1-17, March.
    4. Harald Andersson & Alan Kabanshi & Mathias Cehlin & Bahram Moshfegh, 2020. "On the Ventilation Performance of Low Momentum Confluent Jets Supply Device in a Classroom," Energies, MDPI, vol. 13(20), pages 1-24, October.
    5. Arman Ameen & Mathias Cehlin & Ulf Larsson & Taghi Karimipanah, 2019. "Experimental Investigation of Ventilation Performance of Different Air Distribution Systems in an Office Environment—Heating Mode," Energies, MDPI, vol. 12(10), pages 1-13, May.
    6. Alberto Meiss & Miguel Ángel Padilla-Marcos & Irene Poza-Casado & Antonio Álvaro-Tordesillas, 2020. "A Graphical Tool to Estimate the Air Change Efficiency in Rooms with Heat Recovery Systems," Sustainability, MDPI, vol. 12(3), pages 1-15, January.
    7. Maria Hurnik & Jan Kaczmarczyk & Zbigniew Popiolek, 2021. "Study of Radial Wall Jets from Ceiling Diffusers at Variable Air Volume," Energies, MDPI, vol. 14(1), pages 1-18, January.
    8. Piotr Michalak, 2023. "Simulation and Experimental Study on the Use of Ventilation Air for Space Heating of a Room in a Low-Energy Building," Energies, MDPI, vol. 16(8), pages 1-17, April.

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