Variable Compression Ratio Diesel Engine Performance Analysis

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2015 by IJETT Journal
Volume-28 Number-1
Year of Publication : 2015
Authors : K.Satyanarayana, Vinodh Kumar Padala, T.V.Hanumantha Rao, S.V.Umamaheswararao
DOI :  10.14445/22315381/IJETT-V28P202


K.Satyanarayana, Vinodh Kumar Padala, T.V.Hanumantha Rao, S.V.Umamaheswararao"Variable Compression Ratio Diesel Engine Performance Analysis", International Journal of Engineering Trends and Technology (IJETT), V28(1),6-12 October 2015. ISSN:2231-5381. published by seventh sense research group

Variable Compression Ratio (V.C.R) engine test rig can be used to determine the effect of Compression Ratio (C.R) on the performance and emissions of the engine. The combustion phenomena, when provided with a pressure transducer. The performance frequency parameters like efficiencies, power adopted, and specific fuel consumption are determined. Further, combustion phenomenon is also observed through this work, we can find the optimum compression ratio for which the best performance is possible. In order to find out optimum compression ratio, experiments were carried out on a single cylinder four stroke variable compression ratio diesel engine. Tests were carried out at compression ratios of 16.5, 17.0, 17.5, 18.0 and 19.0 at different loads the performance characteristics of engine like Brake power (BP), Brake Thermal Efficiency (BTE), Brake Specific Fuel Consumption (BSFC). Results show a significant improved performance at a compression ratio 19.0. The compression ratios lesser than 19.0 showed a drop in break thermal efficiency, rise in fuel consumption.


[1] asoudIranmanesh, J.P.Subrahmanyam, M.K.G. Babu, Potential of Diethyl ether as supplementary fuel to improve combustion and emission characteristics of diesel engines,SAE paper number 2008-28-0044 (2008)
[2] M. Senthil Kumar. Experimental investigations on diesel engine with vegetable oils.Ph.D Thesis.IIT Madras, Chennai, India.
[3] Ganesan V. 1998. Internal Combustion Engines. Tata McGrawhill, New Delhi.
[4] B.S. Samaga. Vegetable oil as alternative fuel for C.I engines.8th NCICEC-83. Paper No. AF-2.
[5] J. Ray Smith and Salvador Aceves. 1995. Series Hybrid vehicles and optimized hydrogen engine design. SAE Paper No. 951195.
[6]. Kapilan N., Mohanan P. and Reddy R.P., Performance and Emission Studies of Diesel Engine Using Diethyl Ether as Oxygenated Fuel Additive, SAE Paper number:2008-01- 2466 (2008).
[7]. Ashok M.P. and Saravanan C.G., Effect of Diethyl Ether with Emulsified Fuel in a Direct Injection Diesel Engine, SAE Paper number: 2007-01-2126 (2007)
[8]. Subramanian K.A. and Ramesh A., Use of Diethyl Ether Along with Water-Diesel Emulsion in a Di Diesel Engine, SAE Paper number: 2002-01-2720 (2002).
[9] K.S. Narayana, S. Phani Kumar, M.S.S. Srinivasa Rao “Thermo-Structural Finite Element Analysis of I.C. Engine Pistons “International Colloquium on Materials Manufacturing and Metrology, ICMMM 2014, August 8-9, IIT Madras, Chennai, India. P 882- 84.
[10] Lanka Tata Rao , Katakam Satyanarayana , M.S.S.Srinivasa Rao, T.V. Hanumanta Rao, S.V.UmamaheswaraRao, “stress analysis of 4stroke diesel engine piston “ IJCESR ISSN (print): 2393-8374, (online): 2394-0697,volume-2,issue-2,2015
[11] K.Satyanarayana et al., Condition Monitoring And Detection Of Unbalance Using Vibration Signature Analysis. InternationalJournal of Recent Scientific Research Vol. 6, Issue, 8, pp.5796-5800, August, 2015.
[12] D. Simhachalam, N. Indraja, M. Raja Roy"Experimental Evaluation of Mechanical Properties of Stainless Steel by TIG Welding at Weld Zone", International Journal of Engineering Trends and Technology (IJETT), V26(3),120-127 August 2015. ISSN:2231-5381

Diesel engine, variable compression ratio, performance, smokes density.