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Improvement of Human Thermal Comfort by Optimizing the Airflow Induced by a Ceiling Fan

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  • Hsin-Hung Lin

    (Department of Creative Product Design, Asia University and Department of Medical Research, China Medical University Hospital, Taichung City 41354, Taiwan)

Abstract

The purpose of this study is to investigate the relationship between the greenhouse effect and the overuse of electricity and energy under a sustainable environment. The goal is to investigate the airflow that is induced by ceiling fans, by measuring human body temperature. In the simulation model, the thermal plume phenomenon is observed in the indoor environment. By changing the ceiling fan parameters, the influence of the airflow is investigated by practical measurement of human body temperature. The indoor convective heat transfer is enhanced by installing a ceiling fan, which affects the whole body thermal sensation (WBTS). Different scenarios are reviewed by adjusting the fan speed in the simulation model, so that the distribution of human body temperature can be determined. By modeling the blade plane of the ceiling fan, the airflow characteristics can be determined by making the simulation model rotate in order to assess the thermal comfort characteristics. As the ceiling fan generates circulation within the domain, the thermal comfort is significantly enhanced. By keeping a reasonable thermal comfort level, a higher room temperature or a higher heat load is allowed so that a sustainable environment can be maintained without affecting the indoor thermal comfort or the efficiency of energy usage.

Suggested Citation

  • Hsin-Hung Lin, 2019. "Improvement of Human Thermal Comfort by Optimizing the Airflow Induced by a Ceiling Fan," Sustainability, MDPI, vol. 11(12), pages 1-17, June.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:12:p:3370-:d:240872
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    References listed on IDEAS

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    1. Holtedahl, Pernille & Joutz, Frederick L., 2004. "Residential electricity demand in Taiwan," Energy Economics, Elsevier, vol. 26(2), pages 201-224, March.
    2. Schmidt, Kersten & Patterson, Dean J., 2001. "Performance results for a high efficiency tropical ceiling fan and comparisons with conventional fans," Renewable Energy, Elsevier, vol. 22(1), pages 169-176.
    3. Ferro, L.M.C. & Gato, L.M.C. & Falcão, A.F.O., 2011. "Design of the rotor blades of a mini hydraulic bulb-turbine," Renewable Energy, Elsevier, vol. 36(9), pages 2395-2403.
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    Cited by:

    1. Teen-Hang Meen & Yusuke Matsumoto & Ming-Shyan Wang, 2020. "Selected Papers From 2019 IEEE Eurasia Conference on Biomedical Engineering, Healthcare and Sustainability (IEEE ECBIOS 2019)," Sustainability, MDPI, vol. 12(1), pages 1-5, January.
    2. Hsin-Hung Lin & Jui-Hung Cheng, 2020. "A Study of the Simulation and Analysis of the Flow Field of Natural Convection for a Container House," Sustainability, MDPI, vol. 12(23), pages 1-28, November.
    3. Sriraj Gokarakonda & Christoph van Treeck & Rajan Rawal, 2022. "Investigating Optimum Cooling Set Point Temperature and Air Velocity for Thermal Comfort and Energy Conservation in Mixed-Mode Buildings in India," Energies, MDPI, vol. 15(6), pages 1-27, March.

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