Experimental and Numerical Study of Impact of Air Filter Holes Masking on Altitude at Heavy-Duty Diesel Engine

Sepideh Hosseinzadeh, Mofid Gorji-Bandpy, Ghasem Javadi Rad, Mojtaba Keshavarz

Department of Mechanical Engineering, Babol Universityof Tecjnology, Babol, Iran.
Iran Heavy Diesel Engine Mfg Co (DESA), Amol, Iran.

DOI: 10.4236/mme.2012.24021                

Abstract

At high altitudes, power of an internal combustion engine reduces due to air density reduction. In turbocharged diesel engine this issue affects the performance of the compressor and can result in unstable operation of the turbocharger if the power is not decreased by engine actuator. Mainly for testing the effects of altitude in the test room, air throttle valve and combustion air handling unit were used to reduce the suction air pressure. Easier and cheaper solution to consider effect of altitude on engine performance is to mask part of the air filter to reduce the suction pressure. In this paper, pressure drop against 0%, 26%, 52%, 66% and 74% of air filter hole’s masking for different mass flow rates has been studied by computational fluid dynamics. The analysis output mass flow rate-pressure diagram for the air filter, will be used as input data in the GT-Power software which is a one-dimensional computational fluid dynamics software and the effect of masking on altitude and performance at different revolutions per minute of the engine is investigated. Also, an experimental and computational fluid dynamics study was carried out to predict altitude against different proportions of air filter hole’s masking at 1000 rpm. The predicted results are validated by comparing with those of experimental data. A good agreement between the predicted and experimental values ensures the accuracy of the numerical predictions with the present work.

Keywords

Heavy-Duty Engine, Pressure Drop, Altitude, Mass Flow Rate

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	X. Wang, K. Kim, C. Lee and J. Kim, “Prediction of Air Filter Efficiency and Pressure Drop in Air Filtration Media Using a Stochastic Simulation,” Fibers and Polymers, Vol. 9,No. 1, 2008, pp. 34-38. doi:10.1007/s12221-008-0006-4
[2]	J. H. Kim, Y. Liang, K. M. Sakong, J. H. Choi and Y. Cheol Bak, “Temperature Effect on the Pressure Drop across the Cake of Coal Gasification Ash Formed on a Ceramic Filter,” Powder Technology, Vol. 181, No. 1, 30 2008, pp. 67-63. doi:10.1016/j.powtec.2007.06.006
[3]	L. D. Fabbro, J. C. Laborde, P. Merline and L. Ricciardi, “Air Flows and Pressure Drop Modeling for Different Pleated Industrial Filters,” Filtration & Separation, Vol. 39, No. 1, 2002, pp. 34-40. doi:10.1016/S0015-1882(02)80055-6
[4]	H. Kamiya, K. Deguchi, J. Goyou and M. Horio, “Increasing Phenomena of Pressure Drop During Dust Removal Using a Rigid Ceramic Filter at High Temperature,” Powder Technology, Vol. 118, No. 1-2, 2001, pp. 160-165.
[5]	W. Bergman, R. D. Taylor, H. H. Miller, A. H. BIermann, H. D. Hebard, R. A. daRoaza and B. Y. Lum, “Enhanced Filtration Program at LLL—A Progress Report,” Proceedings of the 15th DOE/NRC Nuclear Air Cleaning and Treatment Conference, Boston, 7-10 August 1978, pp. 1058-1099.
[6]	J. Vendel, Ph. Mulcey and P. Letourneau, “Aerosol Penetration Inside HEPA Filtration Media,” Proceedings of the 21st DOE/NRC Nuclear Air Cleaning Conference, San Diego, 13-16 August 1990, pp. 799-808.
[7]	P. Letourneau, V. Renaudin and J. Vendel, “Effect of the Particle Penetration Inside the Filter Medium on the HEPA Filter Pressure Drop,” Proceedings of the 22nd DOE/NRC Nuclear Air Cleaning Conference, Denver, 24-27 August 1992, pp. 128-142.
[8]	V. J. Novick, J. F. Klassen, P. R. Monsone and T. A. Long, “Predicting Mass Loading as a Function of Pressure Difference across Prefilter/HEAP Filter Systems,” Proceedings of the 22nd DOE/NRC Nuclear Air Cleaning Conference, Denver, 24-27 August 1992, pp. 554-573.
[9]	D. Thomas, P. Contal, V. Renaudin, P. Penicot, D. Leclerec and J. Vendel, “Modeling Pressure Drop in Heat Filters during Dynamic Filteration,” Journal of Aerosol Science, Vol. 30, No. 2, 1999, pp. 235-246.
[10]	Q. Cai, “A Study of Air Filter by Computational Fluid Dynamics,” MSc Thesis, School of Mechanical Aerospace Engineering, Oklahoma State University, 1993.
[11]	C-B Tebbutt, “Computational Fluid Dynamic Model of Flow through Air Filter Plates,” MSc Thesis Mechanical and Aerospace engineering. Oklahoma State University, Oklahoma City, 1995.
[12]	D. R. Chen, D. Y. H. Pui and B. Y. H. Liu, “Optimization of Pleated Filters Designs Using a Finite-Element Numerical Model,” Aerosol Science and Technology, Vol. 23, No 4, 1995, pp. 579-590. doi:10.1080/02786829508965339
[13]	L. Del Fabbro, J. C. Laborde, P. Merlin and L. Ricciardi, “Air Flows and Pressure Drop Modeling for Different Pleated Industrial Filters,” Filtration & Separation, Vol. 39, No. 1, 2002, pp. 35-40.
[14]	Y. Awni and A. Otoom, “Prediction of the Collection Efficiency, the Porosity, and the Pressure Drop across Filter Cake in Particulate Air Filtration,” Atmospheric Environment, Vol. 39, No. 1, 2005, pp. 51-57.
[15]	L. Raynal, C. Boyer and J. P. Ballaguet, “Liquid Holdup and Pressure Drop Determination in Structured Packing with CFD Simulations,” The Canadian Journal of Chemical Engineering, Vol. 82, No. 5, 2004, pp. 871-879.
[16]	Z. Yang and J. Zhu, “A New k-e Eddy Viscosity Model for High Reynolds Number Turbulent Flows,” Computers & Fluids, Vol. 24, No. 3, 1995, pp. 227-238.