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Research and Application for Diesel Oil with High Solidify-point to Heat in Winter

Author: LuJiang
Tutor: SongGuiQiu；ZhouYun
School: Northeastern University
Course: Mechanical Engineering
Keywords: High pour point diesel Heating power Finite Element Transient thermal analysis
CLC: TK427
Type: Master's thesis
Year: 2008
Downloads: 31
Quote: 0
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Abstract


Low pour point diesel transport vehicles, diesel engines in winter are generally used according to the temperature corresponding grades, low pour point diesel engine combustion performance, power performance, economy and environmental performance is not as good as the high pour point diesel. Winter use of high pour point diesel due to its large molecular weight, low temperature fluidity of diesel fuel atomization and evaporation are affected will lead to incomplete combustion, resulting in decreased engine power increased fuel consumption and emissions pollution problem. Through the understanding of the research and application of domestic and international diesel engine in the low-temperature start, combined with the characteristics of high pour point diesel use heated solution to solve the problem of high pour point diesel fuel used in the low-temperature state, according to the different stages of the vehicle design the corresponding heating means. Steyr WD615 engine model, the use of heat transfer related theory, based on the the envisaged high pour point diesel heating method to consider the impact of factors, in accordance with the law of conservation of energy heating high pour point diesel fuel supply system of physical model and the physical model based on the mathematical model Parking heating stage before the start and driving various stages of heating apparatus according to the specific use conditions were established. Theoretical values ??calculated by heating the various parts of the heating power. Describes the basic theory ANSYS10.0 software transient thermal analysis, and transient thermal analysis of the basic steps to solve the parameter setting method. The thermal analysis functions using ANSYS10.0 software model the heating process, transient analysis, simulation and optimization to determine the heating power of the heating parts. Independent laboratory tests to determine the heating power, the experimental results and the theoretical and simulation results control analysis to identify the error reason. Industrial heating device test verification, analysis of improvements to the existing problems in the industrial test, the study was a success. Issues and domestic and foreign vehicles commonly used in low-temperature startup device compared different direction of research, low temperature start device mainly consider the engine intake preheating, the subject is in order to solve the low temperature fluidity of the winter fuel. Through the various parts of the fuel supply system of the diesel engine, reasonable power heating method to achieve the purpose of using the high pour point diesel vehicles in the winter. The industrial test validation issues the study is successful, the promotional value.

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CLC: > Industrial Technology > Energy and Power Engineering > Internal combustion engine > Diesel engine > Run test
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