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postgraduate thesis: Life cycle assessment of LED road lighting
| Title | Life cycle assessment of LED road lighting |
|---|---|
| Authors | |
| Issue Date | 2012 |
| Publisher | The University of Hong Kong (Pokfulam, Hong Kong) |
| Citation | Chan, H. [陳可芹]. (2012). Life cycle assessment of LED road lighting. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4854261 |
| Abstract | It is observed that the power consumption of road lighting is increased with the length of trafficable road in Hong Kong. The energy used in road lighting is increasing, which means that the greenhouse gases (GHGs) emitted from power plant for generating electricity for road lighting is at the same time increasing.
To compare the performance of light emitted diode (LED) road lighting with road lighting of other lamp sources, literature review, life cycle assessment (LCA) and technical assessment are adopted to give an overall comparison. This research focuses more on the environmental impacts of road lighting. LCA is adopted in order to give a comprehensive view on the environmental impact of road lighting. A total of 3 different lamp sources are compared: high pressure sodium (HPS) lamp, induction lamp and light emitted diode (LED) lamp.
From the model result, it is found that due to the low power consumption and long life time, LED and induction lamp road lighting gives generally less environmental impact than HPS road lighting. As induction lamp has a longer life span than LED, the environmental impact of induction lamp road lighting is found slightly less than that of LED road lighting. Taking account the future development in LED technology, leading to longer life time, higher efficacy and lower production cost, LED road lighting is expected to be a replacement for road lighting in Hong Kong for the future. |
| Degree | Master of Science in Environmental Management |
| Subject | Light emitting diodes. Roads - Lighting. |
| Dept/Program | Environmental Management |
| Persistent Identifier | http://hdl.handle.net/10722/180086 |
| HKU Library Item ID | b4854261 |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Chan, Ho-kan. | - |
| dc.contributor.author | 陳可芹. | - |
| dc.date.accessioned | 2013-01-17T02:25:07Z | - |
| dc.date.available | 2013-01-17T02:25:07Z | - |
| dc.date.issued | 2012 | - |
| dc.identifier.citation | Chan, H. [陳可芹]. (2012). Life cycle assessment of LED road lighting. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4854261 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/180086 | - |
| dc.description.abstract | It is observed that the power consumption of road lighting is increased with the length of trafficable road in Hong Kong. The energy used in road lighting is increasing, which means that the greenhouse gases (GHGs) emitted from power plant for generating electricity for road lighting is at the same time increasing. To compare the performance of light emitted diode (LED) road lighting with road lighting of other lamp sources, literature review, life cycle assessment (LCA) and technical assessment are adopted to give an overall comparison. This research focuses more on the environmental impacts of road lighting. LCA is adopted in order to give a comprehensive view on the environmental impact of road lighting. A total of 3 different lamp sources are compared: high pressure sodium (HPS) lamp, induction lamp and light emitted diode (LED) lamp. From the model result, it is found that due to the low power consumption and long life time, LED and induction lamp road lighting gives generally less environmental impact than HPS road lighting. As induction lamp has a longer life span than LED, the environmental impact of induction lamp road lighting is found slightly less than that of LED road lighting. Taking account the future development in LED technology, leading to longer life time, higher efficacy and lower production cost, LED road lighting is expected to be a replacement for road lighting in Hong Kong for the future. | - |
| dc.language | eng | - |
| dc.publisher | The University of Hong Kong (Pokfulam, Hong Kong) | - |
| dc.relation.ispartof | HKU Theses Online (HKUTO) | - |
| dc.rights | The author retains all proprietary rights, (such as patent rights) and the right to use in future works. | - |
| dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
| dc.source.uri | http://hub.hku.hk/bib/B48542611 | - |
| dc.subject.lcsh | Light emitting diodes. | - |
| dc.subject.lcsh | Roads - Lighting. | - |
| dc.title | Life cycle assessment of LED road lighting | - |
| dc.type | PG_Thesis | - |
| dc.identifier.hkul | b4854261 | - |
| dc.description.thesisname | Master of Science in Environmental Management | - |
| dc.description.thesislevel | Master | - |
| dc.description.thesisdiscipline | Environmental Management | - |
| dc.description.nature | published_or_final_version | - |
| dc.identifier.doi | 10.5353/th_b4854261 | - |
| dc.date.hkucongregation | 2012 | - |
| dc.identifier.mmsid | 991033959269703414 | - |