Two-dimensional laser induced fluorescence measurement of spray and OH radicals of LPG in constant volume chamber |
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| Institution: | 1. Department of Mechanics and Maritime Sciences, Chalmers University of Technology, Gothenburg 41296, Sweden;2. ONERA – The French Aerospace Laboratory, F-91761 Palaiseau, France;3. Central Aerohydrodynamic Institute (TsAGI), 140180 Zhukovsky, Moscow Region, Russian Federation;4. Clean Combustion Research Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia;1. UM-SJTU Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China;2. School of Engineering, Newcastle University, Claremont Road, Newcastle-Upon-Tyne NE1 7RU, UK;1. Division of Fluid Mechanics, Department of Energy Sciences, Lund University, Lund, 22100, Sweden;2. Department of Mechanics and Maritime Sciences, Chalmers University of Technology, Göteborg 412 96, Sweden |
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| Abstract: | It is recognized that alternative fuels such as liquid petroleum gas (LPG) have less polluting combustion characteristics than diesel fuel. In this study, LPG was injected into a high pressure and temperature chamber to reproduce the stratification processes in an engine. The spray images were taken by the use of a PLIF method with Nd:YAG laser to analyze their penetration and evaporation characteristics. Also the characteristics of combustion were investigated by simultaneous visualization of OH radical and flames.The results show that the mixture moves along the impingement wall that reproduced the piston bowl and reaches the ignition spark plug. Also, OH fluorescence rises sharply and then decreases gradually when the combustion is carried out actively. |
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