Effects of Leaked Exhaust System on Fuel Consumption Rate of an Automobile
Efforts on fuel consumption have since continued but still the effects of a hole on any part of the exhaust system in relation with fuel consumption rate have not been investigated. Sequel to this, the effects of leaks (with respect to the diameter and location of the leak) on the motor vehicle and its exhaust system as a whole and specifically on fuel consumption rate are investigated, and a mathematical model formulated to this effect. Four tests were conducted with two trials per test on the exhaust system at two different times: first, the effects of varying the diameter of the leak on fuel consumption rate; and second, the effects of varying the length of exhaust system at which the leak occurs on fuel consumption rate were investigated. The resulting mathematical model (called FUCON+) is a specialized model for Honda CRVs, and can predict fuel consumption rate with respect to leakage on the exhaust system. The results of the experiment showed that the rate at which fuel is consumed increases with the leakage diameter, regardless of its location on the exhaust system. It can be concluded that a leak in an exhaust system affects not only the health of its driver and passengers but also the fuel consumption rate and the engine performance.
KeywordsFuel Consumption Emission Factor Engine Speed Catalytic Converter Exhaust System
The authors thank the management of the Federal University of Technology, Akure, Nigeria for providing an enabling environment for carrying out this study.
- 2.Taylor MA, Young TM (1996). Developing a set of fuel consumption and emissions models for use in traffic network modelling. In: Proceedings of the 13th international symposium on transportation and traffic theory, Lyon, France, July 1996, pp 24–26Google Scholar
- 3.Challen BJ (2004) Vehicle noise and vibration: recent engineering developments (Pt series). SAE Society of Automotive Engineers – Surface Vehicle Emissions Standards Manual, vol 93. SAE, Warrendale, 207 ppGoogle Scholar
- 4.Roumégoux JP, André M, Vidon R, Perret P, Tassel P (2008) Fuel consumption and CO2 emission from the auxiliary equipment: air conditioning and alternator. In French, Bron, France: INRETS, report LTE0428, 28 ppGoogle Scholar
- 5.Obert EF (1973) Internal combustion engines and air pollution, 3rd edn. Harper & Row, New York, pp 97–106, 314–317Google Scholar
- 6.Owen K, Coley T (1995) Automotive fuels reference book, 2nd edn. Society of Automotive Engineers, Inc., WarrendaleGoogle Scholar
- 8.Information on http://www.wikianswers.com/how_will_a_hole_in_the_exhaust_affect_fuel_consumption. Accessed 12 Jan 2011
- 9.Barth M, Younglove T, Scora G, Levine C, Ross M, Wenzel T (2007) Comprehensive Modal Emissions Model (CMEM). version 2.02: User’s Guide. University of California. Riverside Center for Environmental Research and TechnologyGoogle Scholar
- 10.Henein NA (1972) Emissions from combustion engines and their control. Ann Arbor Science Publishers, Ann ArborGoogle Scholar
- 11.Highways Agency, Scottish Executive Development Department, Welsh Assembly Government and the Department for Regional Development Northern Ireland, Design Manual for Roads and Bridges, Volume 11, Section 3, Part 1, Air Quality, Highways Agency, Scottish Industry Department, The Welsh office and the Department of Environment for Northern Ireland, Stationary Office London, 2007Google Scholar
- 12.Information on http://peugeot.mainspot.net/fault_find/index.shtml. Accessed 12 Jan 2011
- 13.Aderoba AA (1995) Tools of engineering management, Engineering project management, vol 1. Besade Publishing Press, NigeriaGoogle Scholar
- 14.Oke PK, Kareem B, Alayande OE (2011) Fuel consumption modeling of an automobile with leaked exhaust system. Lecture notes in engineering and computer science. In: Proceedings of the world congress on engineering, WCE 2011, London, UK, 6–8 July 2011, pp. 909–912Google Scholar