Numerical Investigation of the Characteristics of the In-Cylinder Air Flow in a Compression-Ignition Engine for the Application of Emulsified Biofuels
| Autor: | Teoh Yew Heng, Mazlan Mohamed, Shukriwani Sa’ad, Sharzali Che Mat, M.F. Hamid, Muhammad Khalil Abdullah, M. Y. Idroas, Muhamad Azman Miskam |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
020209 energy Bioengineering 02 engineering and technology Computational fluid dynamics Combustion lcsh:Chemical technology law.invention lcsh:Chemistry Piston Diesel fuel 020401 chemical engineering law 0202 electrical engineering electronic engineering information engineering Chemical Engineering (miscellaneous) lcsh:TP1-1185 0204 chemical engineering emulsified biofuel business.industry Process Chemistry and Technology compression-ignition (CI) engine Mechanics guide vanes Fuel injection Ignition system piston lcsh:QD1-999 Turbulence kinetic energy biofuel Combustion chamber business CFD |
| Zdroj: | Processes Volume 8 Issue 11 Processes, Vol 8, Iss 1517, p 1517 (2020) |
| ISSN: | 2227-9717 |
| DOI: | 10.3390/pr8111517 |
| Popis: | This paper presents a numerical analysis of the application of emulsified biofuel (EB) to diesel engines. The study performs a numerical study of three different guide vane designs (GVD) that are incorporated with a shallow depth re-entrance combustion chamber (SCC) piston. The GVD variables were used in three GVD models with different vane heights, that is, 0.2, 0.4 and 0.6 times the radius of the intake runner (R) and these were named 0.20R, 0.40R and 0.60R. The SCC piston and GVD model were designed using SolidWorks 2017, while ANSYS Fluent version 15 was used to perform cold flow engine 3D analysis. The results of the numerical study showed that 0.60R is the optimum guide vane height, as the turbulence kinetic energy (TKE), swirl ratio (Rs), tumble ratio (RT) and cross tumble ratio (RCT) in the fuel injection region improved from the crank angle before the start of injection (SOI) and start of combustion (SOC). This is essential to break up the heavier-fuel molecules of EB so that they mix with the surrounding air, which eventually improves the engine performance. |
| Databáze: | OpenAIRE |
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