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Overall thermal transfer values for building envelopes in Hong Kong

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  • Chow, W.K.
  • Chan, K.T.

Abstract

The Overall Thermal Transfer Values (OTTVs) of building envelopes in Hong Kong have been considered. Parametric studies on a centrally air-conditioned building were performed. The DOE-2 program, developed at the US Department of Energy, has been used as the energy behaviour simulation tool. The year 1980 is taken as the reference weather year for Hong Kong. The window-to-wall ratio as well as the orientation of the windows for the example building were varied. Two values of OTTV, one for summer and the other for winter, have been established for accounting for seasonal changes in Hong Kong. The summer OTTV, calculated from the heat gain in the hot season, is recommended as the more important value for evaluating the thermal performance of building envelopes in Hong Kong.

Suggested Citation

  • Chow, W.K. & Chan, K.T., 1992. "Overall thermal transfer values for building envelopes in Hong Kong," Applied Energy, Elsevier, vol. 42(4), pages 289-312.
    • Handle: RePEc:eee:appene:v:42:y:1992:i:4:p:289-312
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    Cited by:

    1. Seo, Dong-yeon & Koo, Choongwan & Hong, Taehoon, 2015. "A Lagrangian finite element model for estimating the heating and cooling demand of a residential building with a different envelope design," Applied Energy, Elsevier, vol. 142(C), pages 66-79.
    2. Chan, A.L.S. & Chow, T.T., 2013. "Evaluation of Overall Thermal Transfer Value (OTTV) for commercial buildings constructed with green roof," Applied Energy, Elsevier, vol. 107(C), pages 10-24.
    3. Koo, Choongwan & Park, Sungki & Hong, Taehoon & Park, Hyo Seon, 2014. "An estimation model for the heating and cooling demand of a residential building with a different envelope design using the finite element method," Applied Energy, Elsevier, vol. 115(C), pages 205-215.
    4. Yik, F.W.H & Wan, K.S.Y, 2005. "An evaluation of the appropriateness of using overall thermal transfer value (OTTV) to regulate envelope energy performance of air-conditioned buildings," Energy, Elsevier, vol. 30(1), pages 41-71.
    5. Chow, W. K. & Chan, K. T., 1995. "Parameterization study of the overall thermal-transfer value equation for buildings," Applied Energy, Elsevier, vol. 50(3), pages 247-268.

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