Can anyone tell me some advantageous applications of turbocharger?

Question

Guy, I'm giving a seminar in my college on the Topic Turbochargers. I need some help, I want five useful applications of Turbochargers.
So please help.

Answer 1

Basically more power and particularly torque from smaller engines. The turbo diesel is particularly effective.
I have a new Audi A6 2.7 litre twin turbo diesel. It is a very big car with fantastic performance and I still get 40 miles per gallon. It accelerates very quickly but as soon as it reaches cruising speed the boost tails of and it runs as a very efficient direct injection engine.
Without a turbo it would need twice the engine size for the same performance and hence much more weight and mechanical drag.
The energy to spin the turbo is essentially free (exaust pressure) unlike a supercharger that requires a belt drive to a Rootes type compressor that may rob quite a few horse power from the engine.

Answer 2

Turbochargers are a type of forced induction system. They compress the air flowing into the engine . The advantage of compressing the air is that it lets the engine squeeze more air into a cylinder, and more air means that more fuel can be added. Therefore, you get more power from each explosion in each cylinder. A turbocharged engine produces more power overall than the same engine without the charging. This can significantly improve the power-to-weight ratio for the engine.
In order to achieve this boost, the turbocharger uses the exhaust flow from the engine to spin a turbine, which in turn spins an air pump. The turbine in the turbocharger spins at speeds of up to 150,000 rotations per minute (rpm) -- that's about 30 times faster than most car engines can go. And since it is hooked up to the exhaust, the temperatures in the turbine are also very high.

The Basics
One of the surest ways to get more power out of an engine is to increase the amount of air and fuel that it can burn. One way to do this is to add cylinders or make the current cylinders bigger. Sometimes these changes may not be feasible -- a turbo can be a simpler, more compact way to add power, especially for an aftermarket accessory.

Turbochargers allow an engine to burn more fuel and air by packing more into the existing cylinders. The typical boost provided by a turbocharger is 6 to 8 pounds per square inch (psi). Since normal atmospheric pressure is 14.7 psi at sea level, you can see that you are getting about 50 percent more air into the engine. Therefore, you would expect to get 50 percent more power. It's not perfectly efficient, so you might get a 30- to 40-percent improvement instead.

One cause of the inefficiency comes from the fact that the power to spin the turbine is not free. Having a turbine in the exhaust flow increases the restriction in the exhaust. This means that on the exhaust stroke, the engine has to push against a higher back-pressure. This subtracts a little bit of power from the cylinders that are firing at the same time.

Answer 3

Increased horsepower, increased torque, increased engine efficiency, better fuel economy.

Ok, let me clarify on the better fuel economy. If you have a 2.8 liter engine thats naturally aspirated, it's going to get better fuel economy than a 2.8 liter turbocharged engine, however it will have much less power, but a 2.8 liter turbocharged engine that makes 260hp will get better fuel economy than a 4.7 liter V8 engine that makes 260hp. A turbocharged car is also more fun to drive IMO because you can either putt around and get good gas mileage, or spool up the turbo and let it rip.

Answer 4

As you probably know.. A turbo simply shoves more air down the throat of an engine. More horsepower is the result. Turbo's make the engine's life shorter.

Answer 5

Free horsepower. Using waste exhaust to pressurize the intake.

Answer 6

Drag racing, street racing, oval racing, sportscar racing, and drifting