Nitromethane Case Study

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1.8 NITROMETHANE
Nitromethane is an organic compound with the chemical formula CH3NO2. It is the simplest organic nitro compound. It is a slightly viscous, highly polar liquid commonly used as a solvent in a variety of industrial applications such as in extractions, as a reaction medium, and as a cleaning solvent. As an intermediate in organic synthesis, it is used widely in the manufacture of pharmaceuticals, pesticides, explosives, fibers, and coatings. Nitromethane is used as a fuel in various motorsports and hobbies, e.g. Top Fuel drag racing and miniature internal combustion engines in radio control, control line and free flight model aircraft.
1.9 PROPERTIES OF DIESEL, ETHANOL AND NITROMETHANE:
There are some properties essential to check before using the additives in C.I. engines. Table 1.1 gives the comparison of physical and chemical properties of diesel, ethanol and nitromethane.
Table 1.1 Comparison of physical and chemical properties of
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It consists of a test-bed, having a diesel engine, eddy current dynamometer, fuel tank, air box, computerized data acquisition panel having controls and displays for different thermocouples, speed sensor and flow meters. Flow supply is measured using load cell. NOx, CO and HC are measure with the help of i3sys six gas analyser. AVL 437C smoke meter is used to measure exhaust smoke.
The engine coupled through suitable coupling to eddy current dynamometer. The engine and dynamometer mounted on rigid steel C-channel frame. It is provided with air tank with orifice mater, exhaust gas calorimeter with digital temperature indicators, necessary sensors for cylinder pressure and crank angle measurement, with necessary software for acquiring the data with appropriate display panel.
3.2 SELECTION OF TEST RIG AND DEVELOPMENT OF EXPERIMENTAL

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