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Efficiency assessment of indoor environmental policy for air-conditioned offices in Hong Kong


  • Wong, L.T.
  • Mui, K.W.


To reduce carbon dioxide (CO2) emissions through thermal energy conservation, air-conditioned offices in the subtropics are recommended to operate within specified ranges of indoor temperature, relative humidity and air velocity. As thermal discomfort leads to productivity loss, some indoor environmental policies for air-conditioned offices in Hong Kong are investigated in this study with relation to thermal energy consumption, CO2 emissions from electricity use, and productivity loss due to thermal discomfort. Occupant thermal response is specifically considered as an adaptive factor in evaluating the energy consumption and productivity loss. The energy efficiency of an office is determined by the productivity which corresponds to the CO2 generated. The results found that a policy with little impact on occupant thermal comfort and worker productivity would improve the office efficiency while the one with excessive energy consumption reduction would result in a substantial productivity loss. This study is a useful reference source for evaluating an indoor thermal environmental policy regarding the energy consumption, CO2 emissions reduction, thermal comfort and productivity loss in air-conditioned offices in subtropical areas.

Suggested Citation

  • Wong, L.T. & Mui, K.W., 2009. "Efficiency assessment of indoor environmental policy for air-conditioned offices in Hong Kong," Applied Energy, Elsevier, vol. 86(10), pages 1933-1938, October.
  • Handle: RePEc:eee:appene:v:86:y:2009:i:10:p:1933-1938

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    References listed on IDEAS

    1. Yang, Liu & Lam, Joseph C. & Tsang, C.L., 2008. "Energy performance of building envelopes in different climate zones in China," Applied Energy, Elsevier, vol. 85(9), pages 800-817, September.
    2. Mui, K.W. & Wong, L.T. & Law, L.Y., 2007. "An energy benchmarking model for ventilation systems of air-conditioned offices in subtropical climates," Applied Energy, Elsevier, vol. 84(1), pages 89-98, January.
    3. Yamtraipat, N. & Khedari, J. & Hirunlabh, J. & Kunchornrat, J., 2006. "Assessment of Thailand indoor set-point impact on energy consumption and environment," Energy Policy, Elsevier, vol. 34(7), pages 765-770, May.
    4. Wong, L.T. & Mui, K.W., 2008. "A transient ventilation demand model for air-conditioned offices," Applied Energy, Elsevier, vol. 85(7), pages 545-554, July.
    5. Wong, L.T. & Mui, K.W. & Shi, K.L., 2008. "Energy impact of indoor environmental policy for air-conditioned offices of Hong Kong," Energy Policy, Elsevier, vol. 36(2), pages 714-721, February.
    6. ., 2007. "Managing the Chinese Firm in Hong Kong and Taiwan," Chapters,in: Asian Firms, chapter 5 Edward Elgar Publishing.
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    Cited by:

    1. Zheng, Guozhong & Jing, Youyin & Huang, Hongxia & Gao, Yuefen, 2010. "Application of improved grey relational projection method to evaluate sustainable building envelope performance," Applied Energy, Elsevier, vol. 87(2), pages 710-720, February.
    2. Agüero, J. & Rodríguez, F. & Giménez, A., 2013. "Energy management based on productiveness concept," Renewable and Sustainable Energy Reviews, Elsevier, vol. 22(C), pages 92-100.
    3. Cheung, C.T. & Mui, K.W. & Wong, L.T., 2013. "Energy efficiency of elevated water supply tanks for high-rise buildings," Applied Energy, Elsevier, vol. 103(C), pages 685-691.
    4. Singh, Manoj Kumar & Mahapatra, Sadhan & Atreya, S.K., 2011. "Adaptive thermal comfort model for different climatic zones of North-East India," Applied Energy, Elsevier, vol. 88(7), pages 2420-2428, July.
    5. Prieto, Alejandro & Knaack, Ulrich & Klein, Tillmann & Auer, Thomas, 2017. "25 Years of cooling research in office buildings: Review for the integration of cooling strategies into the building façade (1990–2014)," Renewable and Sustainable Energy Reviews, Elsevier, vol. 71(C), pages 89-102.
    6. repec:eee:appene:v:204:y:2017:i:c:p:420-431 is not listed on IDEAS


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