Determining the Diesel fuel injection rate shaping requirements for emission control purposes
Authors: Malastovskiy N.S., Barchenko F.B., Grekhov L.V., Kuleshov A.S., Denisov A.A., Starkov E.E.
Published in issue: #3(63)/2017
DOI: 10.18698/2308-6033-2017-3-1594
Category: Power, Metallurgic and Chemical Engineering | Chapter: Heat Engines
Emission reduction is the key issue for modern engines engineering process. Therefore, fuel injection equipment development based on ecological legislations is important today. We performed modern diesel engine's combustion simulation to determine the fuel injection process requirements. The field of engine design parameters included the following values: number and diameter of the injector nozzles, the boot length and pressure of injection, EGR ratio, start of injection (SOI) timing. Simulations were carried out for modes according to ISO 8178-4 for the selected range of loads for marine engines. Based on the findings recommendations were introduced for injection rate shaping using an injector with an additional controlling section in the nozzle.
References
[1] Desantes J.M., Benajes J., Molina S., Gonzalez C.A. The modification of Fuel Injection Rate in Heavy-Duty Diesel Engines. Part 1: Effects on Engine Performance and Emissions. Applied Thermal Engineering, 24:2701-2714, 2004.
[2] Zhao H., ed. Advanced Direct Injection Combustion Engine Technologies and Development, Vol. 1: Gasoline and Gas Engines. Woodhead Publishing Limited and CRC Press LLC, 2010.
[3] Grekhov L.V., Denisov A.A., Starkov E.E. Natsionalnaya assotsiatsiya uchenykh - The National Association of Scholars, 2015, no. 8 (13), part 1, pp. 24-28.
[4] Ziegler G. Euro 4 and Beyond - Role of Diesel Fuel Injection Systems. SIAT Conference, 2005, 9 p.
[5] Luckhchoura V. Modeling of injection-rate shaping in diesel engine combustion. Doctor’s Degree Dissertation. Aachen, 2010, 133 p.
[6] Grzeschik P., Laumen H.-J. FEV HiFORS: A new passenger car Diesel injector with continuous rate shaping for 2500 bar injection pressure. Combustion Engines, 2014, 157 (2), pp. 36-44.
[7] Whitelaw J.H., Payri F., Arcoumanis C., Desantes J.-M. Thermo- and Fluid Dynamic Processes in Diesel Engines 2: Selected papers from the THIESEL 2002 Conference. Valencia, Spain, 11-13 September 2002.
[8] Carbonell D., Oliva A., Perez-Segarra C.D. Implementation of Two- Equation Soot Flamelet Models for Laminar Diffusion Flamelets. Combustion and Flame, 156(3):621-632, 2009.
[9] Fink C., Drescher M., Rabe R., Harndorf H. Hydraulic measures to improve common-rail injection system performance - Impact of injection rate shaping on emissions of a medium speed diesel engine. CIMAC Congress. Shanghai, China, May 13-16, 2013.
[10] Kuleshov A.S., Grekhov L.V. Multidimensional Optimization of DI Diesel Engine Process Using Multi-Zone Fuel Spray Combustion Model and Detailed Chemistry NO* Formation Model. SAE Tech. Pap. Ser., 2013, no. 2013-010882
[11] Grekhov L., Mahkamov K., Kuleshov A. Optimization of Mixture Formation and Combustion in Two-stroke OP Engine Using Innovated Diesel Spray Combustion Model and Fuel System Simulation Software. SAE Intern. Tech. Pap. Ser, 2015, no. 20159328, 14 p.
[12] ISO 8178-4-2013. Dvigateli vnutrennego sgoraniya porshnevye. Izmerenie vybrosa produktov sgoraniya. Chast 4. Ispytatelnye tsikly dlya dvigateley razlichnogo primeneniya na ustanovivshikhsya rezhimakh [Reciprocating internal combustion engines. Exhaust emission measurement. Part 4. Steady-state test cycles for different engine applications]. Moscow, 2014, 23 p.
[13] Tanabe K., Kohketsu S., Nakayama S. Effect of Fuel Injection Rate Control on Reduction of Emissions and Fuel Consumption in a Heavy-Duty Direct-Injection Diesel Engine. SAE Tech. Paper, 2005, no. 2005-01-0907.
[14] Kuleshov A.S. Razvitiye metodov rascheta i optimizatsiya rabochikh protsessov DVS. Dis. ... d-ra tekhn. nauk [The development of methods of calculation and optimization of the internal combustion engines working processes. Dr. Sc. (Engineering) Dis.]. Moscow, 2011, 235 p.
[15] Bochkov M.V., Zakharov A.Yu., Khvisevich S.N. Matematicheskoye modelirovaniye - Mathematical Models and Computer Simulations, 1997, vol. 9, no. 3, pp. 13-28.
[16] Heywood J.B. Internal Combustion Engine Fundamentals, McGraw Hill, 1988, 676 p.