engine temperature

engine temperature - How Car Engines Work Engine.swf Otto...

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Unformatted text preview: How Car Engines Work Engine.swf Otto Cycle Four strokes Air-fuel ratio (fuel injection) Compression Ratio (9:1) Spark (20k V) Catalytic Convertor EGR Fuel injection Ignition emissions Multi-cylinder engines V-6 In-line 4 Valve train and cam shaft Overhead cam Timing belt keeps the camshaft in alliance with the crankshaft so that the valves are in sync with the pistons Otto Cycle I Otto Cycle II Otto Cycle III Otto Cycle IV Otto Cycle V Otto Cycle VI Heat Cycles – PV Diagrams Fluids (gases and liquids) Pressure, temperature, heat Phases and phase transitions Electricity and magnetism ENG 10 : HOW THINGS WORK The Physics of Everyday Life RANDOM BROWNIAN MOTION DENSITY PRESSURE INTERNAL KINETIC ENERGY THERMAL MOTION TEMPERATURE Temperature Temperature Measure of the average kinetic energy of the molecules Temperature • The mean kinetic energy of any molecule of a liquid (or gas) is equal to the mean kinetic energy of a particle suspended in this ambience. The mean kinetic energy of the motion < E > can be written as: • < E > = m<v2>/ 2 = 3kT/2 • where m is the mass of a particle, v is the velocity of a particle, k is the Boltzman constant, and T is the temperature. • The mean kinetic energy of Brownian motion is proportional to the temperature. temperature Suppose you apply a flame to 1 liter of water for 5 min and its Temperature rises by 2 °C. Now, if you apply the same flame to 2 liter of water, by how much will its temperature rise ? Temperature Only 1°C, there are twice as many molecules in 2L of water. As a result, Each molecule only receives only half as much energy on the average Why wouldn’t you expect all the molecules in a gas to have the same speed?have the same speed?...
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This note was uploaded on 04/05/2008 for the course ENG 10 taught by Professor Atul-parhak during the Spring '08 term at UC Davis.

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engine temperature - How Car Engines Work Engine.swf Otto...

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