Energy impact of commercial-building envelopes in the sub-tropical climate

K. T. Chan, Wan Ki Chow

Research output: Journal article publicationJournal articleAcademic researchpeer-review

59 Citations (Scopus)


Existing commercial buildings are surveyed and categorized based on the construction characteristics of their envelope. The envelope heat gain and the resulting cooling load demand are analysed with the aid of energy simulation tool DOE-2.1D. The concept of the overall thermal transfer value (OTTV) is applied to study the association of the envelope designs with the cooling requirement, and a modified approach in assessing the effective envelope heat gains under a sub-tropical climate is proposed. The predicted OTTV gives a good indication of the thermal performance of the envelope under a sub-tropical climate. The energy impact and possible range of cooling-load demands, for various envelope designs, under similar internal characteristics and cooling system, are identified.
Original languageEnglish
Pages (from-to)21-39
Number of pages19
JournalApplied Energy
Issue number1
Publication statusPublished - 1 Jan 1998

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Energy(all)
  • Mechanical Engineering
  • Management, Monitoring, Policy and Law


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