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Multi-Criteria assessment of residential light bulbs available on the Australian market

Usman, Muhammad (2017) Multi-Criteria assessment of residential light bulbs available on the Australian market. Masters by Research thesis, Murdoch University.

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Utilisation of light emitting diodes and compact fluorescent lamps instead of the traditional incandescent ones in residential applications are strongly recommended by the Australian Building Codes, as these are very attractive for households because of their higher energy efficiences. However, they are mostly non-linear loads, injecting harmonic currents and drawing reactive power, because of the ballast and power electronic circuits. Although they are attractive because of their higher energy and luminous efficiencies, the accumulated impact of thousands of them can be adverse on maintaining power quality and reduction of losses in a grid as it may lead to maloperation of circuit breakers, aging of transformers, unnecessary operation of protective relays, and deterioration/failure of capacitors, utilised for power factor correction, etc. Due to an increase in the emergence of such lamps, a detailed study of these lamps from different brands and with different ratings is required to identify the potential adverse effects. Through this research, the currently available residential lamps on the Australian market are evaluated from utility and consumer-oriented perspectives. First, they are juxtaposed from consumer-oriented perspectives such as cost, illumination and lifespan on the basis of data provided on their packaging, as significant criteria for the consumers when purchasing lamps. Then, using detailed laboratory measurements, they are compared from utility-oriented or power quality perspectives such as current harmonics and total harmonic distortion, as well as other aspects such as their fundamental and non-fundamental components of apparent power consumption, stabilisation time, deviation of actual power consumption from rated power and power factor, which are important for the utilities. The captured data is then analysed in MATLAB® to conduct a multi-criteria assessment of lamps. The compliance of the studied lamps with the relevant standards is also evaluated where applicable.

Item Type: Thesis (Masters by Research)
Murdoch Affiliation(s): School of Engineering and Information Technology
Supervisor(s): Shahnia, Farhad
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