Alternate Fuels for IC Engine

A new engine block with optical access has been designed and manufactured capable of running up to 3000 r/min with the same specification as the unmodified engine. The optical window allowed access to the full length of the liner over a width of 25 mm to investigate the lubricant flow and cavitation at contact point between the rings and cylinder-liner. In addition, it allowed good access into the combustion chamber to allow charged flow, spray and combustion visualisation and measurements using different optical methods. New custom engine management system with build in LabView allowed for the precise full control of the engine. The design of the new optical engine was a great success in producing high quality images of lubricant flow, cavitation formation and development at contact point at different engine speeds ranging from 208 to 3000 r/min and lubricant temperatures (30°C–70°C) using a high-speed camera. The results under motorised operation confirmed that there was no cavitation at contact points during the intake/exhaust strokes due to low in-cylinder presure, while during compression/expansion strokes, with high in-cylinder pressure, considerable cavities were observed, in particular, during the compression stroke. Lubricant temperatures had the effect of promoting cavities both in their intensity and covered ring area up to 50°C as expected. Beyond that, although the cavitation intensity increases further with temperature, its area reduces due to possible collapse of the cavitating bubbles at higher temperature. The change of engine speed from 208 to 800 r/min increased cavitating area considerably by 52% of the ring area and was further increased by 19% at 1000 r/min. After that, the results showed very small increase in cavitation area (1.3% at 2000 r/min) with similar intensity and distribution across the ring.

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Piston ring and cylinder liner for IC engine

Sealing Technology ◽

10.1016/s1350-4789(09)70520-3 ◽

2009 ◽

Vol 2009 (9) ◽

pp. 15

Keyword(s):

Piston Ring ◽

Cylinder Liner ◽

Ic Engine

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INVESTIGATION ON THE PERFORMANCE OF FLAXSEED BIODIESEL BLENDS WITH TIO2 COATED PISTON ON A FOUR STROKE DI DIESEL ENGINE

Journal of Mechanical Engineering ◽

10.3329/jme.v46i1.32523 ◽

2017 ◽

Vol 46 (1) ◽

pp. 49-53

Author(s):

R. Bhaskar Reddy ◽

S. Sunilkumar Reddy

Keyword(s):

Combustion Chamber ◽

Fuel Economy ◽

Diesel Engines ◽

Canola Oil ◽

Alternative Fuels ◽

Flaxseed Oil ◽

Suitable Alternative ◽

Petroleum Resources ◽

Di Diesel Engine ◽

Alternate Fuels

Diesel engines are being used extensively for fuel economy but due to gradual depletion of Petroleum resources and increase in exhaust emissions, there is an urgent need for suitable alternative fuels for the diesel engines. As our country is an agricultural country, if the alternate fuels are produced by our farmers it will be beneficial for the country and the farmers also. In recent studies, researchers studied various vegetable oils like canola oil, alovera oil, soya been oil, flaxseed oil and hone oil etc. Out of all flaxseed oil play an important role as an alternative fuel. But the properties of flaxseed oil are not suitable for the usage in the existing diesel engines without blending with diesel fuel. The performance of the engine depends on the combustion phenomenon and it further depends on the amount of heat retained in the combustion chamber. Hence the present work is planned accordingly to develop an insulated engine by coating the piston with TIO2material. So that more amount of heat will be retained in the combustion chamber which aids the combustion. Further the performance of flaxseedbiodiesel blend namely B10, B20, B30 and B40 are tested and the results are mentioned accordingly.

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Analysis of Higher Alcohol Fuel Blends for IC Engine—A Review

Lecture Notes in Mechanical Engineering - Advances in Interdisciplinary Engineering ◽

10.1007/978-981-13-6577-5_58 ◽

2019 ◽

pp. 605-612

Author(s):

Rahul Sharma ◽

Dilip Kumar ◽

Mayank Chhabra ◽

Gaurav Dwivedi

Keyword(s):

Higher Alcohol ◽

Ic Engine ◽

Fuel Blends ◽

Alcohol Fuel

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Acoustic Source Data for Medium Speed IC-Engines

Journal of Vibration and Acoustics ◽

10.1115/1.4006415 ◽

2012 ◽

Vol 134 (5) ◽

Cited By ~ 5

Author(s):

Antti Hynninen ◽

Raimo Turunen ◽

Mats Åbom ◽

Hans Bodén

Keyword(s):

High Frequency ◽

Internal Combustion Engines ◽

Low Frequency ◽

Acoustic Source ◽

Ic Engine ◽

Source Characteristics ◽

Medium Speed ◽

Source Data ◽

Exhaust Noise ◽

Ic Engines

Knowledge of the acoustic source characteristics of internal combustion engines (IC-engines) is of great importance when designing the exhaust duct system and its components to withstand the resulting dynamic loads and to reduce the exhaust noise emission. The goal of the present study is to numerically and experimentally investigate the medium speed IC-engine acoustic source characteristics, not only in the plane wave range but also in the high frequency range. The low frequency acoustic source characteristics were predicted by simulating the acoustic multiload measurements by using a one-dimensional process simulation code. The low frequency in-duct exhaust noise of a medium speed IC-engine can be quite accurately predicted. The high frequency source data is estimated by averaging the measured acoustic pressures with different methods; using the simple cross-spectra averaging method seems promising in this instance.

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