The Physics of a Diesel Engine Essay -- Energy Automobiles Essays

The Physics of a diesel engine Engine The sphere we live in is surrounded by diesel locomotive engines. They are on the freeways, railways, give ventways, and are one of the leading electricity producers in the world. They are besides becoming more popular in automobiles. These engines are efficient and rock-steady and they are getting very sophisticated. However, the physical science behind these engines has not changed.By way of definition, courtesy of Diesel EngineEngineering a diesel engine is an internal flame engine in which the chemical energy of provide is transformed into thermal energy of the piston bedroom charge, in consequence of the self-ignition and burn of fuel in the engine cylinder after compression of the air charge in the cylinder (p1 Makartchouk).There are basically cardinal types of diesel engines, two-stroke and four-stroke. In a two-stroke engine the piston is forced from the result of the cylinder by the expanding air fuel mixture. Before the piston reaches the toilet of the cylinder the used mixture, (called exhaust), is forced out of the cylinder by the inbound fresh air. The fresh air relies upon a blower, air induction system, to displace it into the electrocution chamber. During this time period the piston begins to travel to the nobble of the cylinder and compress the fresh air sufficient to raise the temperature in the combustion chamber, (area between the top of the cylinder and the cylinder head at top dead center), to 1000-1200 degrees Fahrenheit (p12 Dagel). The fuel is then injected under pressure into the combustion chamber, the air ignites the fuel and the gases begin to expand finishing one cycle.A four-stroke engine begins the same way as the two-stroke with the expanding gases pushing the piston downward, called the ... ...n chamber rises dramatically. The combined fuel and air molecules bounce off one other and since the path of least resistance is the piston, the piston moves downward creating me chanical work.Applying physics to something in everyday use creates a new appreciation for what genuinely happens when you step on the accelerator pedal or see a truck pulling 40,000 plus pounds up a steep incline. With charge a basic study of physics my worldview has changed. I now numerate at that cold piece of cast iron sitting in an engine compartment on a molecular level. Works CitedDagel, John F., and Robert N. Brady. Diesel Engine and Fuel System Repair. Ohio Prentice Hall, 2002.Kirkpatrick, Larry D., and Gerald F. Wheeler. Physics A human beingView. Florida Harcourt College Publishers, 2001. Makartchouk, Andrei. Diesel Engine Engineering. New York Marcel Dekker, Inc., 2002.