Dissertation > Excellent graduate degree dissertation topics show

Multi-dimensional Numerical Simulation of Heavy Diesel Spray Charactristics

Author: HuangYingMing
Tutor: LiuHuiMeng
School: Huazhong University of Science and Technology
Course: Power Machinery and Engineering
Keywords: Heavy-diesel Spray Characteristics Single-hole Spray Multi-hole Spray
CLC: TK421.4
Type: Master's thesis
Year: 2011
Downloads: 47
Quote: 0
Read: Download Dissertation

Abstract


As the aggravation of the energy crisis, the oil price grows constantly nowadays, the fuel cost has already taken over 50% of the ship transportation cost. Therefore, the use of the cost-effective heavy-diesel becomes the urgent issue for the ship companies. Since the formation of mix gas is influenced by the spray characteristics, which determine the process of combustion. The study and the improvement for the spray characteristics of the heavy-diesel will be related to the use of heavy-diesel as well as the guarantee of dynamic property, economic efficiency and emission performance in the medium and high-speed diesel engine.The CFD software is used to build up the single-hole spray model, and then the model is tested and verified. The light and heavy diesel are simulated independently, and then analyze their differences with the help of their properties. The injection pressure, environmental pressure, orifice diameter, orifice length, fuel’s temperature, and the different mixing ration with light diesel are made to optimize the spray characteristic of the heavy-diesel. And learn their influences for the heavy-diesel’s spray characteristic. In order to close to the real condition of spray inside the diesel engine, base on the single-hole spray model, the multi-hole spray model is set up. Compareing their differences and analyze the causes, And then optimizeing the characteristics of the heavy-diesel.Results show that increasing the injection pressure and environmental pressure simultaneously, and heating while mixing with the light diesel can both improve the heavy-diesel’s spray characteristics. However, comparing to the former, the latter is much easier to achieve, and it’s spray characteristics is nearer to the light diesel’s. For this reason, the project of heating while mixing the light and heavy diesel has its practical value.

Related Dissertations

  1. Study on Heat Transfer Performance, Enhancement, and Surface Temperature Non-uniformity in Spray Cooling,TK124
  2. A Study on Spray Characteristics of High-Pressure Fuel Injection for D.I. Diesel Engine,TK421.4
  3. Analysis for Physicochemical Property of Biodiesel-Diesel Blends and Their Improvement for Spray Characteristics,U473
  4. Fuel Injection and Combustion of Diesel Engines Fueled with Dme-biodiesel Blends,U473.1
  5. Petroleum pollutants in soil purification method of chemical oxidation,X53
  6. Diesel spray simulation results of real-time visualization system,TK421
  7. Application Research of the Heavy Oil in the Locomotive Engine,U262
  8. Spray Characteristics of DME DPIV test measurements and numerical simulation,TK46
  9. Influence of HPCR System Parameters on Mixture Formation and Combustion Process,TK421.2
  10. Spray Characteristics of Spray Wall-impingement under Common Rail System,TK421.4
  11. Simulation Research on Effects of Mixture Formation Process on LNG Liquid Direct Injection,TK464
  12. Research on Spray Characteristics of Gasoline-Alcohol Blends and Injector Nozzle Optimization,U464.136
  13. Experimental Study on the Spray Atomization and Combustion of Stirling Engine,TK401
  14. The Investigation on Electrostatic Atomization Mechanism and Spray Characteristics of Biodiesel,TE667
  15. Measurement and Analysis on Features of Spray Beam Based on Matlab/GUI,U467.4
  16. To improve high-speed direct injection diesel engine combustion process,TK421.2
  17. Experimental Study on the Effects of Low Ambient Pressure Conditions at High Altitude on the Fire Suppression Performance of Water Mist,X932
  18. Experimental and Numerical Investigation on Sprays of Hollow-Cone Pressure Nozzle,TH111
  19. Experimental Study on Heat Transfer and System Simulation of Spray Cooling,TK124
  20. A PLIF Experimental Bench for Spray Characteristics in HCCI Diesel Engines,TK427

CLC: > Industrial Technology > Energy and Power Engineering > Internal combustion engine > Diesel engine > Theory > Oil process
© 2012 www.DissertationTopic.Net  Mobile