Rupesh Gupta ¹, Param Gupta ¹, Jatin Bhalla ¹, Shubham Mourya ²

Affiliations
1 Department of Mechanical Engineering, Chitkara University, Chandigarh - 174103, Punjab, IN
2 CT Group of Institutions, Jalandhar - 144008, Punjab, IN

Abstract

This paper gives an overview of the investigation being done for the preparation of biodiesel from soybean oil using the Transesterfication technique with the help of KOH, used as a catalyst. Prepared biodiesel can be used as an alternative to the diesel that is currently being used in automobiles. Diesel being a non-renewable product is under a great risk of depletion and with the depletion of this product, life on earth would be severely affected. Thus, an alternative source of power is required to be developed. Biodiesel being a renewable source of energy comes out to be the best alternative of diesel. Biodiesel produced by using different blends of soyabean oil is being used and tested in a VCR type 4-stroke diesel engine. It has been observed that feeding vegetable oil directly to the engine for a longer period may cause working problems and disturbances to the engine. These problems are due to physical properties of oil like viscosity, volatility and polyunsaturated character. Transesterfication process comes out as an effective solution of this problem as it reduces fluid viscosity and other operational errors from the oil. Methyl ester of soybean oil (SBD) were found to be very similar to mineral diesel due to this, a mixture of SBD and mineral diesel were used to make different blends of biodiesel which were then fed to a CI engine as fuels. Engine was tested for different blend of biodiesel at 1500 rpm at different loading conditions and its performance parameters were analysed. The outcome of the investigation has proved that biodiesel exhibits physical properties which are similar to that of mineral diesel. It is to be noted that the BSFC (Brake Specific Fuel Consumption) of biodiesel is more as it has low heating point. Use of Biodiesel in automobiles has shown a notable amount of reduction in CO, HC, NO_x. So Biodiesel can be an alternative of mineral diesel.

Keywords

Brake Thermal Efficiency, CO, Diesel Engine, Emission Parameters, Hydrocarbon, No_x, Soybean Biodiesel.

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Rupesh Gupta ¹, Param Gupta ¹, Anachal Sharma ¹, Jatin Bhalla ¹, Gaurav Garg ²

Affiliations
1 Chitkara University, Chandigarh - 140401, Punjab, IN
2 Kurukshetra University, Kurukshetra - 136119, Haryana, IN

Abstract

This Paper gives an overview about the latest camless engine designed using laser LDR circuit. Engines that are being used in today’s automobile consist of a cam shaft which lifts up and closes the fuel inlet and outlet valves of the engine. Due to the inefficiency of the cam shaft to open up and close the engine fuel valves on time, it does not follow the ideal valve timing diagram and gives less output power and fuel economy then the calculated one. Lack of efficiency to open up and close the engine valves on time also result in presence of hydrocarbon and unburnt fumes in the engine exhaust. In order to overcome all these inefficiencies, a camless engine is developed in which the valves of the engine are actuated hydraulically with the help of a laser LDR Circuit. In the proposed system a laser LDR circuit is fitted over the crank shaft of the engine which senses the exact time of opening and closing of engine valve. The developed engine gives better power output and fuel economy by making the engine to follow the ideal valve timing diagram and hence eliminates all the inefficiencies of the engine by making today’s automotive engines more environment friendly by producing less hydrocarbons and unburnt fumes. The newly developed camless engine can be used in any type of automobile which uses IC engine as a power unit.

Keywords

Camless Engine, Engine using Laser-LDR Circuit, Hybrid Engine, Laser Interferometer, Valve Actuation System.

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