Title: Qualitative and quantitative analysis of discomfort glare due to artificial indoor lighting

Authors: Deevesh Sharma; Awadhesh Bhardwaj; Monica Sharma; Ashraf Mirza

Addresses: Department of Mechanical Engineering, Malviya National Institute of Technology Jaipur, India ' Department of Mechanical Engineering, Malviya National Institute of Technology Jaipur, India ' Department of Management Studies, Malviya National Institute of Technology Jaipur, India ' Department of Mechanical Engineering, Malviya National Institute of Technology Jaipur, India

Abstract: The research evaluated the effect of the change in position of the observer and luminance of light source on discomfort glare. There were two approaches taken in this study, one was qualitative and other was quantitative approach. The quantitative approach was based on unified glare rating. In this study, 11 experiments have been conducted to get degree of glare at different places of room. The qualitative analysis performed over 15 participants and on the basis of questionnaire, degree of glare has been evaluated. A participant has to answer that he finds particular field of direction comfortable or not by marking it on a scale (De-Boer) of 1-4. The result obtained from both approaches was compared to get the comfortable range of illuminance and the angle between the luminaire with line of sight.

Keywords: discomfort glare; unified glare rating; UGR; Guth position index; luminance; light-emitting diode; LED; compact fluorescent light; CFL; productivity management; glare; lighting; productivity; management.

DOI: 10.1504/IJPQM.2019.102425

International Journal of Productivity and Quality Management, 2019 Vol.28 No.1, pp.90 - 102

Received: 06 Dec 2017
Accepted: 19 Jun 2018
Published online: 24 Sep 2019 *

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