Overall thermal transfer values for building envelopes in Hong Kong

Wan Ki Chow, K. T. Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

14 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)289-312
Number of pages24
JournalApplied Energy
Issue number4
Publication statusPublished - 1 Jan 1992

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • General Energy
  • Mechanical Engineering
  • Management, Monitoring, Policy and Law


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