Thermodynamic Modeling of Single Cylinder Direct Injection Compression Ignition Engine in Simulink

Abstract:

The aim of this research is to develop a mathematical model of a compression ignition engine using cylinder-by-cylinder model approach to predict the performances; indicated work, indicated torque, in-cylinder pressures and temperatures and heat release rates. The method used in the study is based on ideal diesel cycle and is modified by the numerical formulations which affect the performance of the engine. The model consists of a set of tuning parameters such as engine geometries, EGR fractions, boost pressures, injection timings, air/fuel ratio, etc. It is developed in Simulink environment to promote modularity. A single-zone combustion model is developed and implemented for the combustion process which accounts for ignition delay, heat release. Derivations from slider-crank mechanism are involved to compute the instantaneous volume, area and stroke at any given crank angle. The results of the simulation model have been validated with experimental results with a close match between them.

• Periodical: Applied Mechanics and Materials (Volumes 813-814)
• Pages: 866-873
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.813-814.866
• Online since: November 2015
• Authors: Sindhu Ravichettu*, G. Amba Prasad Rao, K. Madhu Murthy
• Keywords: Compression-Ignition Engine, Simulation, Simulink, Single-Zone Model, System Modeling

References

[1] Abu-Nada E, Al-Hinti. I, Al-Sarkhi. A, Akash. B, Thermodynamic modeling of spark ignition engine: effect of temperature dependent specific heats, International Communications in Heat and Mass Transfer. 33(10): (2006) 1264-1272.

DOI: 10.1016/j.icheatmasstransfer.2006.06.014

[1] Abu-Nada E, Al-Hinti. I, Al-Sarkhi. A, Akash, Thermodynamic analysis of spark ignition engine using a gas mixture model for the working fluid, International Journal of Energy Research. 31 (2007) 1031-1046.

DOI: 10.1002/er.1296

[1] Abu-Nada E, Al-Hinti. I, Al-Sarkhi. A, Akash, Effect of piston friction on the performance of SI engine: a new thermodynamic approach. ASME Journal of Gas Turbines and Power, International Journal of Energy Research. 130 (2008) 022802-1.

DOI: 10.1115/1.2795777

[1] Abu-Nada E, Al-Hinti. I, Al-Sarkhi. A, Akash, Performance of spark ignition engine under effect of friction using gas mixture model, Journal of the Energy Institute. 82 (2009) 197-205.

DOI: 10.1179/014426009x12448189963478

[5] Yasin Varol a, Hakan F. Oztop, Mujdat Firat, Ahmet Koca, CFD modeling of heat transfer and fluid flow inside a pent-roof type combustion, International Communications in Heat and Mass Transfer. (2010).

DOI: 10.1016/j.icheatmasstransfer.2010.07.003

[6] Kunpeng Qi, Liyan Feng, Xianyin Leng, Baoguo Du, Wuqiang Long, Simulation of quasi-dimensional combustion model for predicting diesel engine performance, Institute of Internal Combustion Engine, Dalian University of Technology, People's Republic of China, Applied Mathematical Modelling. 35 (2011).

DOI: 10.1016/j.apm.2010.07.047

[7] He Ma, Hong-Ming Xu, Ji-Hong Wang, Real-time Control Oriented HCCI Engine Cycle-to-cycle Dynamic Modelling, International Journal of Automation and Computing. 8 (2011) 317-325.

DOI: 10.1007/s11633-011-0587-z

[8] Roberto Finesso, Ezio Spessa, A real time zero-dimensional diagnostic model for the calculation of in-cylinder temperatures, HRR and nitrogen oxides in diesel engines, Energy Conversion and Management. 79 (2014) 498–510.

DOI: 10.1016/j.enconman.2013.12.045

[9] Heywood JB, Internal Combustion Engine Fundamentals, New York, McGraw Hill, (1988).

[10] Woschini, A Universally Applicable Equation for the Instantaneous Heat Transfer Coefficient in the Internal Combustion Engine, SAE Paper 670931.

DOI: 10.4271/670931

[11] Miyamoto. N, Chikahisa . T, Murayama. T, Sawyer. R, Description and analysis of diesel engine rate of combustion and performance using Weibe's functions, SAE paper 850107. (1985).

DOI: 10.4271/850107

[12] Pulkrabek W, Engineering fundamentals of the internal combustion engine. second ed. Pearson Prentice-Hall, Upper Saddle River, New Jersey, USA. (2004).

[13] Watson, N, Pilley A. D., and Marzouk M A Combustion Correlation for Diesel Engine Simulation, SAE Paper 800029. (1980).

DOI: 10.4271/800029

[14] Sonntag R, Borgnakke C, Van Wylen G, Fundamentals of thermodynamics, 5th ed. Wiley, New York. (1998).