A study of solar control film in a hotel building

Danny H.W. Li, Ada H.L. Mak, Wai Hung Chan, Lui Ming Mak, Y. M. Chen, H. R. Xie, G. Q. Hou

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Energy tariff is a major cost in hotel operation. Effective use of energy can reduce operational expenditures and has important environmental benefits. Solar heat gain particularly through fenestration, contributes to a significant proportion of the building envelope cooling load. More solar radiation means more total solar heat gain and hence, more cooling requirements and larger electricity consumption for air-conditioning in hot summer. Daylight makes an interior space look more lively and attractive and people expect good natural lighting in their living spaces. Daylight is always accompanied by solar heat gain. Due to the small angle of incidence, direct sunlight can be excessive for east-facing windows in early morning and west-facing windows in late afternoon. To avoid the problems of glare, excessive brightness and thermal discomfort, occupants may block the windows with internal shading devices, resulting in poor daylighting performance, switching on electric light fittings and completely isolating with the outdoor environment. Recent advances in thin film coatings for window glass products provide a means of substantially reducing heat gain without proportionally reducing daylight transmittance. It indicates that cooling energy can be reduced, while people can enjoy more natural light and maintain visual contact with the outside environment. This study presents the optical and energy performances of a solar control film coating installed in a guest room of a three-star hotel located in Hunan Province, China. The findings indicated that solar film coating can cut down cooling load without substantially reduce the indoor daylight illuminance level. Proper solar film coating designs would minimize the building energy expenditures and maintain the visual and thermal comforts.
Original languageEnglish
Title of host publicationIAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings
Subtitle of host publicationSustainable Built Environment
Pages55-60
Number of pages6
Volume1
Publication statusPublished - 1 Dec 2007
Event6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, IAQVEC 2007 - Sendai, Japan
Duration: 28 Oct 200731 Oct 2007

Conference

Conference6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, IAQVEC 2007
Country/TerritoryJapan
CitySendai
Period28/10/0731/10/07

Keywords

  • Daylighting
  • Energy
  • Energy efficiency
  • Hotel
  • Solar control film

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

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