The Physics of Turbo Chargers Essay

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Do you want your car to pick up speed faster? How about adding a turbo booster on that engine under your automobiles hood. A turbo charger is a very efficient way to gain power. To fully understand the function of this component, lets look at the physics behind it. The Ideal Gas model has much to do in turbo chargers. I will explain the theory and components like the compressor, turbine, intercooler, wastegate, and the BOV.

Matter is assumed to be composed of an enormous number of very tiny particles which are indestructible. Gas is a state of matter. These tiny particles are separated by relatively large distances, which interact elastically. This large space between the particles make it easy to compress a gas. Which gives low mass to
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A turbine is placed in the path of the exhaust gases which are exiting the engine. These gases are caught in the turbine causing it to spin. This spins a shaft along with another pinwheel called the compressor, which is placed in the intake air’s path. This compresses the air on its way into the engine. Normal aspirated engines work to draw in their intake air. As the intake valve opens, the piston’s downward movement creates a vacuum which “sucks” in some air through the intake system. After the work performed by the expansion of the gas in a small space, where the high pressure creates a push against the piston, most of the heat or energy is dumped into the exhaust. This heated air is not in the cylinder long enough to convert all the heat into mechanical energy.

We need to get some use out of this other wise wasted energy. What we really want is more power, and for this unfortunately the engine needs to burn more fuel. The turbine fed by the exhaust gases connects to a compressor that compresses intake air into the engine, which builds up pressure in the intake manifold. Now when the intake valve opens, the compressed air is forced into the combustion chamber. This allows more air to fill the chamber. We will need more fuel to match the amount of air in the combustion chamber. On computerized cars, computers take care of this accordingly. What you get is a more explosive force from combustion, and more compression, about 60 percent better

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