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Science Project

Published on Nov 19, 2015

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PRESENTATION OUTLINE

SUPERCHARGERS VS. TURBOCHARGERS

WHICH IS THE BETTER FORCED INDUCTION
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Problem/purpose

Concluding whether a supercharger or a turbocharger is the better method of forced induction

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Hypothesis

I think that the turbocharger will be the better method of forced induction because they are smaller and look more efficient.

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Procedure
In my procedure I conducted research on the two forced inductions and then asked people who had them why they chose what they did. And then put the information I had gathered and found together and found my answer.


Background


for a 150 hp car to drive the supercharger the engine generates an additional 400 horsepower, a net gain of 250 hp. This is where the principal disadvantage of a supercharger becomes apparent; the engine must withstand the net power output of the engine plus the power to drive the supercharger. Another disadvantage of some superchargers is lower adiabatic efficiency as compared to turbochargers.

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Background (continued)
In practical application the disparity between the two can be dramatic, with turbochargers often producing 15% to 30% more power based solely on the differences in adiabatic efficiency.By comparison, a turbocharger does not place a direct mechanical load on the engine (however, turbochargers place exhaust back pressure on engines, increasing pumping losses).[12] This is more efficient because it uses the otherwise wasted energy of the exhaust gas to drive the compressor.


Results
The turbocharger is more efficient according to adiabatic power and is more economical, cheaper, and produces 15% to 30% more power Compared to the supercharger.

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Conclusion
In my research I have concluded that turbochargers are more efficient and economical compared to the supercharger according to power, cost, and almost all aspects.

Photo by Kay Gaensler