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Field study on thermal comfort and energy saving potential in 11 split air-conditioned office buildings in Changsha, China

Author

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  • Wu, Zhibin
  • Li, Nianping
  • Wargocki, Pawel
  • Peng, Jingqing
  • Li, Jingming
  • Cui, Haijiao

Abstract

All existing thermal comfort standards are applicable to naturally ventilated buildings and air-conditioned buildings, except mixed-mode buildings. Split air-conditioned buildings, as a type of mixed-mode buildings, account for a large proportion of current buildings. It is urgent to explore the applicability of thermal comfort standards and determine the energy saving potential in split air-conditioned buildings. In this research, the authors conducted a field study in Changsha, China. Eleven split air-conditioned office buildings were investigated from July to September 2016. 442 valid data sets were obtained. The results indicated that occupants preferred a “cooler” temperature of 26 °C, 0.6°Clower than neutral temperature of 26.7 °C. Occupants have adapted to thermal environment and accepted higher temperature than that predicted by PPD. 95% of occupants were satisfied with the thermal environment. Compared to PMV model, the adaptive model was more applicable to split air-conditioned buildings. 8.6% of cooling energy could be conserved during summer in split air-conditioned buildings.

Suggested Citation

  • Wu, Zhibin & Li, Nianping & Wargocki, Pawel & Peng, Jingqing & Li, Jingming & Cui, Haijiao, 2019. "Field study on thermal comfort and energy saving potential in 11 split air-conditioned office buildings in Changsha, China," Energy, Elsevier, vol. 182(C), pages 471-482.
    • Handle: RePEc:eee:energy:v:182:y:2019:i:c:p:471-482
    DOI: 10.1016/j.energy.2019.05.204
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    Cited by:

    1. Xie, Xing & Chen, Xing-ni & Xu, Bin & Pei, Gang, 2022. "Investigation of occupied/unoccupied period on thermal comfort in Guangzhou: Challenges and opportunities of public buildings with high window-wall ratio," Energy, Elsevier, vol. 244(PB).
    2. Iasmin Lourenço Niza & Evandro Eduardo Broday, 2022. "An Analysis of Thermal Comfort Models: Which One Is Suitable Model to Assess Thermal Reality in Brazil?," Energies, MDPI, vol. 15(15), pages 1-19, July.
    3. Kahori Genjo & Haruna Nakanishi & Momoka Oki & Hikaru Imagawa & Tomoko Uno & Teruyuki Saito & Hiroshi Takata & Kazuyo Tsuzuki & Takashi Nakaya & Daisaku Nishina & Kenichi Hasegawa & Taro Mori & Hom Ba, 2023. "Development of Adaptive Model and Occupant Behavior Model in Four Office Buildings in Nagasaki, Japan," Energies, MDPI, vol. 16(16), pages 1-30, August.
    4. Du, Chenqiu & Li, Baizhan & Yu, Wei & Liu, Hong & Yao, Runming, 2019. "Energy flexibility for heating and cooling based on seasonal occupant thermal adaptation in mixed-mode residential buildings," Energy, Elsevier, vol. 189(C).
    5. Wang, Jingjie & Qiu, Rujia & Xu, Bin & Wu, Hongbin & Tang, Longjiang & Zhang, Mingxing & Ding, Ming, 2023. "Aggregated large-scale air-conditioning load: Modeling and response capability evaluation of virtual generator units," Energy, Elsevier, vol. 276(C).
    6. Naja Aqilah & Hom Bahadur Rijal & Sheikh Ahmad Zaki, 2022. "A Review of Thermal Comfort in Residential Buildings: Comfort Threads and Energy Saving Potential," Energies, MDPI, vol. 15(23), pages 1-23, November.
    7. Zhang, Sheng & Lin, Zhang, 2020. "Standard effective temperature based adaptive-rational thermal comfort model," Applied Energy, Elsevier, vol. 264(C).
    8. Prativa Lamsal & Sushil Bahadur Bajracharya & Hom Bahadur Rijal, 2023. "A Review on Adaptive Thermal Comfort of Office Building for Energy-Saving Building Design," Energies, MDPI, vol. 16(3), pages 1-23, February.
    9. Yang, Zixu & Sun, Hongli & Wang, Baolong & Xiao, Hansong & Dong, Xian & Shi, Wenxing & Lin, Borong, 2022. "Experimental investigation on indoor environment and energy performance of convective terminals," Energy, Elsevier, vol. 251(C).
    10. Mehdi Makvandi & Xilin Zhou & Chuancheng Li & Qinli Deng, 2021. "A Field Investigation on Adaptive Thermal Comfort in an Urban Environment Considering Individuals’ Psychological and Physiological Behaviors in a Cold-Winter of Wuhan," Sustainability, MDPI, vol. 13(2), pages 1-29, January.
    11. Chuan Chen & Mengshu He & Zihan Chu & Lishi He & Jiale Zhu & Yuan Bu & Jiangjun Wan & Lingqing Zhang, 2022. "Field Study on Indoor Thermal Environments of Monastic Houses and Thermal Comfort of Monks," IJERPH, MDPI, vol. 20(1), pages 1-20, December.
    12. Xinzhi Gong & Qinglin Meng & Yilei Yu, 2021. "A Field Study on Thermal Comfort in Multi-Storey Residential Buildings in the Karst Area of Guilin," Sustainability, MDPI, vol. 13(22), pages 1-15, November.
    13. Yuang Guo & Dewancker Bart, 2020. "Optimization of Design Parameters for Office Buildings with Climatic Adaptability Based on Energy Demand and Thermal Comfort," Sustainability, MDPI, vol. 12(9), pages 1-23, April.

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