Visual and thermal comfort and its relations to exergy consumption in a classroom with daylighting
by Yoko Maki; Masanori Shukuya
International Journal of Exergy (IJEX), Vol. 11, No. 4, 2012

Abstract: This paper discusses the exergetic aspect of daylighting together with luminous and thermal comfort aspect. We calculated the exergy consumption for lighting and cooling in a classroom for the cases with and without electric lighting. The full use of daylighting decreases chemical exergy input to the power plant by 89%. According to a questionnaire survey asking the students' perception of sensations and comfort in the classroom, while daylighting was being used, the cut-off of fluorescent tubes did not cause any luminous discomfort and it made their thermal comfort even better.

Online publication date: Tue, 13-Nov-2012

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