dc.contributor.author | Holme, Morten Norlemann | eng |
dc.date.accessioned | 2015-01-19T16:12:52Z | |
dc.date.available | 2015-01-19T16:12:52Z | |
dc.date.issued | 2014-11-20 | eng |
dc.date.submitted | 2014-11-20 | eng |
dc.identifier.uri | https://hdl.handle.net/1956/9206 | |
dc.description.abstract | This thesis describes an experimental investigation of applying photodiodes as sensors inside flame detectors exposed to laminar, transient and turbulent gas explosions, and reflecting environment of various degrees. Small-scale and large-scale experiments have been carried out, in a 0.135m^3 apparatus and a 50m^3 vessel, respectively, with vented premixed gas explosions. The experimental approach of small-scale is transferable to that of large- scale experiments. Experiments with mixtures of propane/air and methane/air with different fuel-air ratios were carried out. High-speed cameras recorded the flame front propagations. The time of arrival detected by the flame sensors, in combination with the high-speed videos, made it possible to validate the functionality of the detectors. Three different optical detectors were investigated, two in small-scale and one in large-scale explosions. A total of 99 tests were carried out, 80 in small scale and 19 in large scale. The data and experience acquired through tests and optimization in small-scale experiments were used to develop flame detectors for the large-scale experiments. The developed detectors were tested and optimized in a 50m^3 test vessel. | en_US |
dc.format.extent | 6667265 bytes | eng |
dc.format.mimetype | application/pdf | eng |
dc.language.iso | eng | eng |
dc.publisher | The University of Bergen | en_US |
dc.subject | Flammeanalyse | nob |
dc.subject | Fotodioder | nob |
dc.subject | Eksplosjoner | nob |
dc.title | An experimental investigation of angled sight flame detectors with 850nm photodiode sensor. Development of experimental equipment | en_US |
dc.type | Master thesis | |
dc.rights.holder | Copyright the author. All rights reserved | en_US |
dc.description.localcode | MAMN-PRO | |
dc.description.localcode | PRO399 | |
dc.subject.realfagstermer | http://data.ub.uio.no/realfagstermer/c008617 | |
dc.subject.realfagstermer | http://data.ub.uio.no/realfagstermer/c000757 | |
dc.subject.realfagstermer | http://data.ub.uio.no/realfagstermer/c009061 | |
dc.subject.nus | 752199 | eng |
fs.subjectcode | PRO399 | |