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dc.contributor.advisor Rodrigo AS
dc.contributor.author Chamari RML
dc.date.accessioned 2020
dc.date.available 2020
dc.date.issued 2020
dc.identifier.uri http://dl.lib.uom.lk/handle/123/16467
dc.description.abstract Fluorescent tubes and compact fluorescent lamps (CFL) were the dominant artificial light source for so many years in domestic, commercial and industrial contexts. In the recent years Light Emitting Diodes (LEDs) have gained much popularity with the proven energy and economic benefits and are now used in almost every lighting application. Other benefits include compact size, long service life, ease of maintenance and instant-on quality. Ease of dimming and controlling of LEDs set forth further energy savings. Currently there is an increasing trend for using LED luminaires in many commercial buildings and this has led to form a huge demand for LED luminaires and a huge market competition between the lighting solution suppliers. When the LED bulbs were first introduced to the Sri Lankan market, the retail market was flooded with many low-quality products and most of the domestic consumers could not reap the maximum benefit. Same goes for the LED luminaires. Since these LED luminaires are used in thousands of quantities in commercial buildings hoping to last for decades, if not wisely chosen, huge performance and economic losses have to be endured. With the absence of a national guideline to choose LED fixtures there is an ambiguity among lighting designers and clients when choosing the most suitable luminaire from the wide range of LED luminaires available in Sri Lankan market. Therefore, the intention of this research was to develop general criteria that can be used for choosing the most suitable LED luminaire for a given building. Worldwide building codes and rating systems were studied to identify the minimum performance level expected from the LED luminaires in other countries. LED luminaires in Sri Lankan and foreign markets were technically evaluated. Technical specifications of LED luminaires were obtained from manufacturers’ websites and the market prices were obtained from suppliers. Findings of this research include the evolution of lighting requirements imposed by building codes, performance status of LED luminaires available in Sri Lanka market, general criteria for choosing LED luminaires and justification of the proposed criteria with an example application. en_US
dc.language.iso en en_US
dc.subject ELECTRICAL ENGINEERING-Dissertations en_US
dc.subject ELECTRICAL INSTALLATIONS-Dissertations en_US
dc.subject LIGHT-EMITTING DIODES en_US
dc.subject LED LUMINAIRES en_US
dc.subject LIGHTING-Design en_US
dc.subject SOLID-STATE LIGHTING en_US
dc.subject LAMP LUMEN DEPRECIATION en_US
dc.title Criteria for selecting LED luminaires en_US
dc.type Thesis-Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.degree MSc in Electrical Installations en_US
dc.identifier.department Department of Electrical Engineering en_US
dc.date.accept 2020
dc.identifier.accno TH4215 en_US


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