Effect of combustion geometry on combustion, performance and emission characteristics of CI engine using simarouba oil methyl ester

International Conference on Advances in Manufacturing, Materials and Energy Engineering 2018

材料科学;能源学

Keerthi Kumar, N.^1 ; Chandrashekar, T.K.^2 ; Banapurmath, N.R.^3 ; Yaliwal, V.S.^4

Department of Mechanical Engineering, BMSITandM, Bangalore, Karnataka, India^1

Department of Mechanical Engineering, Mangalore Institute of Technology and Engineering, Moodabidri, Karnataka, India^2

Department of Material Science, BVB College of Engineering and Technology, Hubbali, KLE Technological University, Karnataka, India^3

Department of Mechanical Engineering, SDM College of Engineering and Technology, Dharwad, Karnataka, India^4

关键词: Brake thermal efficiency;    Combustion duration;    Direct injection diesel engines;    Exhaust gas temperatures;    Injection parameters;    Injection pressures;    Naturally aspirated;    Performance and emissions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/376/1/012001/pdf
DOI  :  10.1088/1757-899X/376/1/012001

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Present study investigates the effect hemispherical (HCC), cylindrical (CCC), toroidal (TCC) and toroidal re-entrant (TrCC) type combustion chamber (CC) geometry on the characteristics of combustion, performance and exhaust emissions from the engine using Simarouba Oil Methyl Ester (SuOME) and to compare with base engine operated with diesel fuel. Simarouba oil biodiesel is prepared by 2 stage transesterification using methanol and KoH. 4-stroke naturally aspirated single-cylinder water-cooled direct-injection diesel engine with different optimized injection parameters of injection pressure to 240 bar, injection timing to 270bTDC, 6 hole injector of 0.2 mm diameter, and loading condition at rated speed of 1500 rpm were used for testing. Ignition delay (ID), combustion duration (CD), peak pressure (PP), brake thermal efficiency (BTE), exhaust gas temperature (EGT) and exhaust emissions (HC, CO, smoke opacity and NOx) were measured to estimate the behaviour of the diesel engine running on SuOME with different combustion geometry. Results were indicated that, use of SuOME reduces the engine performance with increased emissions compared to fossil diesel conventional fuel. However use of toroidal re-entrant CC gave the better combustion and performance with reduced emission except NOx comparing with other combustion chamber design.