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Technical Paper

Methanol – As a Future Alternative Fuel for Indian Automotive

2024-01-16
2024-26-0081
Methanol fuel has attracted global attention from engine researchers since the crude oil crisis and the rise in crude oil prices in the recent years. As it is one of the possible alcoholic fuels after ethanol in an automotive application that can reduce dependence on crude oil. India has also initiated research studies on methanol since the 1980s. NITI Aayog is encouraging the use of methanol as an automotive fuel for transport sector. This desktop study includes the potentiality of methanol as an automotive fuel and the methanol roadmap for India as a biofuel in the conventional gasoline application. It has been seen that Methanol has the potential to be used as a fuel in automobiles to replace gasoline or crude oil-based fuels in terms of engine performance. According to a study, India’s methanol promotion measures will encourage more enterprises to invest in the research and construction of methanol producing plants and development of methanol-fueled engines.
Technical Paper

Predicting and Optimizing CNG Vehicle Performance on Chassis Dynamometer through 1D Simulation by using Vehicle Performance Algorithm

2015-01-14
2015-26-0059
The paper deals with the simulation of a Light Commercial Vehicle (LCV) using vehicle performance algorithms. This method speeds up the product development process. Also by using these kind of methodology in vehicle simulation there is much noticeable reduction in cost of testing. The simulation model is used for parametric studies of the vehicle and also to attain objectives such as to optimize transmission ratio, full load acceleration, maximum tractive force, gradient performance, fuel consumption and the exhaust emission. In this case study, simulation model of a CNG, LCV is used to analyze the performances similar to that done in a chassis dynamometer. The simulation leads to the prediction and evaluation of various parameters such as fuel consumption, exhaust emissions, full load acceleration, gradient performance & maximum tractive effort for Indian Driving Cycle.
Technical Paper

Development of In-house Competency to Build Compact Gerotor Oil Pump for High Speed Diesel Engine Application

2013-11-27
2013-01-2738
Gerotor pump is a positive displacement pump unit which is widely used for lubrication in on-road and off-road engine applications. This paper is focused on Gerotor pump design competency established at ARAI comprising of design of inner and outer rotors, suction & delivery ports, optimizing inlet and outlet diameters & its position, development of methodology to calculate oil flow rate, volumetric efficiency, mechanical efficiency & slippage. The finalization of design is followed by CFD of Gerotor pump to optimize the pressure and flow pulsation. A trochoidal profile is used to design the inner and outer rotors and its conjugate profile are realized by a set of equations using a method based on the theory of gearing. Suction and delivery port is analytically designed based on the same design parameters of the trochoidal profile.
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