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A simplified overall thermal transfer value equation for building envelopes

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  • Chou, S.K.
  • Lee, Y.K.

Abstract

We describe a methodology for determining a simplified overall thermal transfer value (OTTV) equation for air-conditioned buildings in Singapore. The OTTV equation was formulated by modelling a generic commercial building and using results from DOE-2 computer simulations as a database of heat gains. The new equation increases the weight of the solar heat gain as compared to the currently used OTTV equation. This change yields an improved relation between the OTTV and the total heat gain through the building envelope.

Suggested Citation

  • Chou, S.K. & Lee, Y.K., 1988. "A simplified overall thermal transfer value equation for building envelopes," Energy, Elsevier, vol. 13(8), pages 657-670.
    • Handle: RePEc:eee:energy:v:13:y:1988:i:8:p:657-670
    DOI: 10.1016/0360-5442(88)90096-5
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    Citations

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    Cited by:

    1. Lam, Joseph C. & Tsang, C.L. & Li, Danny H.W. & Cheung, S.O., 2005. "Residential building envelope heat gain and cooling energy requirements," Energy, Elsevier, vol. 30(7), pages 933-951.
    2. Zingre, Kishor T. & Wan, Man Pun & Tong, Shanshan & Li, Hua & Chang, Victor W.-C. & Wong, Swee Khian & Thian Toh, Winston Boo & Leng Lee, Irene Yen, 2015. "Modeling of cool roof heat transfer in tropical climate," Renewable Energy, Elsevier, vol. 75(C), pages 210-223.
    3. Chirarattananon, S. & Chaiwiwatworakul, P. & Hien, V.D. & Rakkwamsuk, P. & Kubaha, K., 2010. "Assessment of energy savings from the revised building energy code of Thailand," Energy, Elsevier, vol. 35(4), pages 1741-1753.
    4. 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.
    5. Chua, K.J. & Chou, S.K., 2010. "Energy performance of residential buildings in Singapore," Energy, Elsevier, vol. 35(2), pages 667-678.
    6. Hwang, Ruey-Lung & Shih, Wen-Mei & Lin, Tzu-Ping & Huang, Kuo-Tsang, 2018. "Simplification and adjustment of the energy consumption indices of office building envelopes in response to climate change," Applied Energy, Elsevier, vol. 230(C), pages 460-470.
    7. Lili Kusumawati & Erni Setyowati & Agus Budi Purnomo, 2021. "Practical-Empirical Modeling on Envelope Design towards Sustainability in Tropical Architecture," Sustainability, MDPI, vol. 13(5), pages 1-23, March.
    8. 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.
    9. 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.
    10. Nutkiewicz, Alex & Mastrucci, Alessio & Rao, Narasimha D. & Jain, Rishee K., 2022. "Cool roofs can mitigate cooling energy demand for informal settlement dwellers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 159(C).

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