0
Research Papers: Fuel Combustion

Influence of Key Structural Parameters of Combustion Chamber on the Performance of Diesel Engine

[+] Author and Article Information
Xinhai Li, Shaobo Ji, Xin Lan

School of Energy and Power Engineering,
Shandong University,
Jinan 250061, China

Yong Cheng

School of Energy and Power Engineering,
Shandong University,
Jinan 250061, China
e-mail: cysgd@sdu.edu.cn

1Corresponding author.

Contributed by the Internal Combustion Engine Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received October 8, 2016; final manuscript received February 12, 2017; published online March 8, 2017. Assoc. Editor: Stephen A. Ciatti.

J. Energy Resour. Technol 139(4), 042203 (Mar 08, 2017) (7 pages) Paper No: JERT-16-1399; doi: 10.1115/1.4036049 History: Received October 08, 2016; Revised February 12, 2017

The structural parameters of combustion chamber have great impacts on the process of air–fuel mixing, combustion, and emissions of diesel engine. The dynamic characteristics and emission performances could be improved by means of optimizing the parameters of the combustion chamber. In this paper, the key structure of a diesel engine combustion chamber is parameterized, and the influence of individual structural parameter on dynamic characteristics and emissions of the engine is simulated and analyzed by computational fluid dynamics (CFD) software avl-fire. The results show that under constant compression ratio, the in-cylinder peak pressure decreases with increasing inclination angle of the combustion chamber (α), while the height (Tm) and bowl radius (R) have little influence on the in-cylinder peak pressure. With increasing α, NO emissions decrease, and soot emissions first increase and then decrease. With increasing R, both NO and soot emissions decrease first and then increase. Therefore, the combustion chamber parameters could be optimized by comprehensive consideration of cylinder pressure, NO and soot emissions.

FIGURES IN THIS ARTICLE
<>
Copyright © 2017 by ASME
Your Session has timed out. Please sign back in to continue.

References

Jaichandar, S. , Kumar, P. S. , and Annamalai, K. , 2012, “ Combined Effect of Injection Timing and Combustion Chamber Geometry on the Performance of a Biodiesel Fueled Diesel Engine,” Energy, 47(1), pp. 388–394. [CrossRef]
Lei, Z. , Chang-Lu, Z. , Fu-jun, Z. , and Yun-shan, G. , 2004, “ Optimization of Diesel Chamber by Advanced Combustion Simulation,” J. Combust. Sci. Technol., 10(5), pp. 465–470.
Jian, Z. , Chen, H. , and Ming-Fa, Y. , 2007, “ Numerical Simulation on the Effect of Combustion Chamber Geometry on Diesel Engine Combustion Process,” Chin. Intern. Combust. Engine Eng., 28(2), pp. 14–18.
Xu, H. , Weiguo, L. , Xiyan, G. , Chunming, L. , and Desheng, Y. , 2006, “ Studying on the Performance Effected by the Shape of Combustion Chamber,” Small Intern. Combust. Engine Motorcycle, 35(1), pp. 1–5.
Pengkun, S. , Guisheng, C. , Xin, W. , Bin, M. , Zunqing, Z. , and Mingfa, Y. , 2013, “ Effects of Structure of Combustion Chamber and Injector on Heavy-Duty Diesel Performance and Emission Characteristics,” Trans. Chin. Soc. Agric. Mach., 44(11), pp. 12–18.
Deming, J. , 2002, Higher Principle of Internal Combustion Engine, Xi An Jiaotong University Press, Xi An, China, pp. 109–125.
Peng, Z. , Guoxiu, L. , and Yusong, Y. , 2010, “ Multi-Dimensional Simulation for Optimization Matching of Intake Swirl and Combustion Chamber in Diesel Engine,” Acta Armamentarii, 31(6), pp. 657–662.
Xuedong, L. , 2004, “ Research on Parameter Optimization and Flow Analysis of Combustion System for Automotive Diesel Engine,” Ph.D. thesis, Jilin University, Jilin Sheng, China, p. 121.
Jaichandar, S. , and Annamalai, K. , 2013, “ Combined Impact of Injection Pressure and Combustion Chamber Geometry on the Performance of a Biodiesel Fueled Diesel Engine,” Energy, 55, pp. 330–339. [CrossRef]
Jaichandar, S. , and Annamalai, K. , 2012, “ Effects of Open Combustion Chamber Geometries on the Performance of Pongamia Biodiesel in a DI Diesel Engine,” Fuel, 98, pp. 272–279. [CrossRef]
Jaichandar, S. , and Annamalai, K. , 2012, “ Influences of Re-Entrant Combustion Chamber Geometry on the Performance of Pongamia Biodiesel in a DI Diesel Engine,” Energy, 44(1), pp. 633–640. [CrossRef]
Wei, S. , Ji, K. , Leng, X. , Wang, F. , and Liu, X. , 2014, “ Numerical Simulation on Effects of Spray Angle in a Swirl Chamber Combustion System of DI (Direct Injection) Diesel Engines,” Energy, 75, pp. 289–294. [CrossRef]
Wei, S. , Wang, F. , Leng, X. , Liu, X. , and Ji, K. , 2013, “ Numerical Analysis on the Effect of Swirl Ratios on Swirl Chamber Combustion System of DI Diesel Engines,” Energy Convers. Manage., 75, pp. 184–190. [CrossRef]
Chen, Y. , and Lv, L. , 2014, “ The Multi-Objective Optimization of Combustion Chamber of DI Diesel Engine by NLPQL Algorithm,” Appl. Therm. Eng., 73(1), pp. 1332–1339. [CrossRef]
Yaliwal, V. S. , Banapurmath, N. R. , Gireesh, N. M. , Hosmath, R. S. , Donateo, T. , and Tewari, P. G. , 2016, “ Effect of Nozzle and Combustion Chamber Geometry on the Performance of a Diesel Engine Operated on Dual Fuel Mode Using Renewable Fuels,” Renewable Energy, 93, pp. 483–501. [CrossRef]
Kakaee, A. H. , Nasiri-Toosi, A. , Partovi, B. , and Paykani, A. , 2016, “ Effects of Piston Bowl Geometry on Combustion and Emissions Characteristics of a Natural Gas/Diesel RCCI Engine,” Appl. Therm. Eng., 102, pp. 1462–1472. [CrossRef]
Wang, B. , Li, T. , Ge, L. , and Ogawa, H. , 2016, “ Optimization of Combustion Chamber Geometry for Natural Gas Engines With Diesel Micro-Pilot-Induced Ignition,” Energy Convers. Manage., 122, pp. 552–563. [CrossRef]
Mamilla, V. R. , Mallikarjun, M. V. , and Rao, G. L. N. , 2013, “ Effect of Combustion Chamber Design on a DI Diesel Engine Fuelled With Jatropha Methyl Esters Blends With Diesel,” Procedia Eng., 64, pp. 479–490. [CrossRef]
Vedharaj, S. , Vallinayagam, R. , Yang, W. M. , and Saravanan, C. G. , 2015, “ Optimization of Combustion Bowl Geometry for the Operation of Kapok Biodiesel-Diesel Blends in a Stationary Diesel Engine,” Fuel, 139, pp. 561–567. [CrossRef]
Benajes, J. , Garcia, A. , Pastor, J. M. , and Monsalve-Serrano, J. , 2016, “ Effects of Piston Bowl Geometry on Reactivity Controlled Compression Ignition Heat Transfer and Combustion Losses at Different Engine Loads,” Energy, 98, pp. 64–77. [CrossRef]
Bapu, B. R. R. , Saravanakumar, L. , and Prasad, B. D. , 2017, “ Effects of Combustion Chamber Geometry on Combustion Characteristics of a DI Diesel Engine Fueled With Calophyllum Inophyllum Methyl Ester,” J. Energy Inst., 90(1), pp. 82–100. [CrossRef]
Park, S. , 2012, “ Optimization of Combustion Chamber Geometry and Engine Operating Conditions for Compression Ignition Engines Fueled With Dimethyl Ether,” Fuel, 97, pp. 61–71. [CrossRef]
Yadollahi, B. , and Boroomand, M. , 2013, “ The Effect of Combustion Chamber Geometry on Injection and Mixture Preparation in a CNG Direct Injection SI Engine,” Fuel, 107, pp. 52–62. [CrossRef]
Li, J. , Yang, W. M. , An, H. , Maghbouli, A. , and Chou, S. K. , 2014, “ Effects of Piston Bowl Geometry on Combustion and Emission Characteristics of Biodiesel Fueled Diesel Engines,” Fuel, 120, pp. 66–73. [CrossRef]
Taghavifar, H. , Jafarmadar, S. , Taghavifar, H. , and Navid, A. , 2016, “ Application of DoE Evaluation to Introduce the Optimum Injection Strategy-Chamber Geometry of Diesel Engine Using Surrogate Epsilon-SVR,” Appl. Therm. Eng., 106, pp. 56–66. [CrossRef]
Wu, C. , Deng, K. , and Wang, Z. , 2016, “ The Effect of Combustion Chamber Shape on Cylinder Flow and Lean Combustion Process in a Large Bore Spark-Ignition CNG Engine,” J. Energy Inst., 89(2), pp. 240–247. [CrossRef]
Fridriksson, H. , Tuner, M. , Andersson, O. , Sunden, B. , Persson, H. , and Ljungqvist, M. , 2014, “ Effect of Piston Bowl Shape and Swirl Ratio on Engine Heat Transfer in a Light-Duty Diesel Engine,” SAE Technical Paper No. 2014-01-1141.
Rajamani, V. , Schoenfeld, S. , and Dhongde, A. , 2012, “ Parametric Analysis of Piston Bowl Geometry and Injection Nozzle Configuration Using 3D CFD and DoE,” SAE Technical Paper No. 2012-01-0700.

Figures

Grahic Jump Location
Fig. 1

Definition of parameter

Grahic Jump Location
Fig. 2

Simulation mesh model

Grahic Jump Location
Fig. 4

The effect of angle α on diesel performance: (a) comparison of cylinder pressure under different α, (b) variations of the change of NO emission under different α, and (c) comparison of soot emissions under different α

Grahic Jump Location
Fig. 5

Comparison of the velocity field and mass fraction of fuel under different α at 740 deg CA

Grahic Jump Location
Fig. 6

Comparison of heat release rate under different α

Grahic Jump Location
Fig. 7

The influence of piston bowl radius R on diesel engine performance: (a) comparisons of cylinder pressure under different R, (b) variations of the change of NO emission under different R, and (c) comparison of soot emission under different R

Grahic Jump Location
Fig. 8

Velocity field and fuel mass fraction field under different R at 740 deg CA

Grahic Jump Location
Fig. 9

Heat release rates under different R

Grahic Jump Location
Fig. 10

Diesel dynamic and emission performance under different Tm: (a) comparisons of cylinder pressure under different Tm, (b) variations of NO emission under different Tm, and (c) comparison of soot emission under different Tm

Grahic Jump Location
Fig. 11

Comparison of velocity field and fuel mass fraction under different Tm at 740 deg CA

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In