碩士 / 國立臺灣海洋大學 / 輪機工程學系 / 106 / The design and solution methods for the problem of LED lighting bulbs installed on ships are proposed in this study. Because vessels are frequently operated under the environment of high vibration and high humidity, the currently used U-type light bulbs might encounter frequent failure and even break-down caused by such environment.LED bulbs installed in ships’ lighting system would thus be considered a superior option. However, LED E27 light bulbs generally for land-used purpose could be not adequate for ships primarily due to harsh sailing environment and rather high failure rate. Therefore,light bulbs used in ships are required to bear resistance characteristics to high environmental temperature and humidity, fluctuating vaibration, and high recycled fraction of the bulb materials. A new type of LED ligh bulb particularly used in marine operating condition was proposed. The lighting characteristics, energy saving, and lifetime of the new LED E27 light bulb were analyzed using field-test method in a cargo ship. LED chips were installed on a circuit board which is tolerable to high surrounding temperature. Glue of vibrating-resistance was pasted onto the joining of LED chips on the circuit board to prevent possible damage from high vibration of a vessel. The novel LED lamps based on above design were fixed at five various locations in a cargo ship to observe and measure their illumination performance, illuminous decay rate and durability of lighting. The experimental results show that the LED E27 lamps are still under normal operating conditions and no breakdown of lamp has been reported. The average illuminous decay rate of all the tested LED lamps was only about 8.12 %. In consequence, replacement of traditional lighting equipment with the novel LED E27 lamps particularly designed for marine vessels would gain significant benefits of energy saving, reduction of carbon dioxide emission, and enhancement of energy efficiency.
| Identifer | oai:union.ndltd.org:TW/106NTOU5484006 |
| Date | January 2018 |
| Creators | Kuo,Huang-Tsung, 郭皇宗 |
| Contributors | Lin,Cherng-Yuan, 林成原 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 52 |
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