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Banu Gopan, M. V. N.
- Optimizing Spark Timing of Spark Ignited Ethanol Engine
Abstract Views :165 |
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Authors
Affiliations
1 Department of Mechanical Engineering, Bharath University, Chennai - 600073, Tamil Nadu, IN
2 Department of Automobile Engineering, MIT Campus, Anna University, Chennai - 600025, Tamil Nadu, IN
1 Department of Mechanical Engineering, Bharath University, Chennai - 600073, Tamil Nadu, IN
2 Department of Automobile Engineering, MIT Campus, Anna University, Chennai - 600025, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 8, No 31 (2015), Pagination:Abstract
Alcohol is a good alternate fuel by comparing its performance, availability and renewability against fossil fuels. Ethanol is widely used in IC engines by blending small amount with petroleum fuels, but it is not solely used because its high boiling point and self-ignition temperature makes it difficult to burn in engines because, auto ignition also is not possible because of its high octane number and engine needs spark ignition. In order to overcome this problem we need a spark ignited engine with high compression ratio. So a high compression ratio engine is modified into spark ignited engine. A carburetor with 2mm main jet to supply excess fuel into engine is used in order to compensate its low calorific value. The engine used in this experiment was a single-cylinder direct injection diesel engine with a cylinder bore of 95mm, a stroke of 110 mm and a compression ratio of 13:1. The rated power was 5.3 kW at 1500 rpm. The engine has been tested at different loads for Ethanol against spark timings when piston is at TDC, 5 degree before TDC, 10 degree before TDC, 15 degree before TDC respectively. The optimum spark timing is found among the experimental basis for Ethanol.Keywords
Ethanol Emissions, Neat Ethanol EngineFull Text
- Optimising the Back Pressure of 4 Stroke Engine by using Baffle Plates in Tail Pipe
Abstract Views :160 |
PDF Views:0
Authors
Affiliations
1 Department of Mechanical Engineering, Bharath University, Chennai - 600073, Tamil Nadu, IN
2 Department of Automobile Engineering, MIT Campus, Anna University, Chennai - 600025, Tamil Nadu, IN
1 Department of Mechanical Engineering, Bharath University, Chennai - 600073, Tamil Nadu, IN
2 Department of Automobile Engineering, MIT Campus, Anna University, Chennai - 600025, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 8, No 31 (2015), Pagination:Abstract
This project aims at evaluating the distribution of back pressure along the length of the effect of back pressure on fuel consumption of a carbureted SI engine. A baffle arrangement installed in the line from the manifold is used to alter the back pressure. The effect of baffle assembly (with four baffles of various angles) fitted at the silencer and the back pressure on the fuel consumption have been determined. Baffle assembly is helpful for the back pressure suppression and it causes change in fuel consumption. The models are analyzed using computational fluid dynamics software fluent for predicting the pressure drop across the muffler. The values of transmission loss and pressure drop is found for all the models and compared. The optimized design is selected from the model having more transmission loss and low pressure drop. The optimized model will be fabricated and tested by fitting in an internal combustion engine to evaluate the engine performance and pressure drop produced by the muffler.Full Text