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Suggested practice problems for Thermodynamics:

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Otto cycle problem:A four cylinder, four stroke, spark-ignition engine operating on the ideal Otto cycle

takes in air at 20 psia and 100F, and is limited to a maximum cycle temperature of 3000F. Each cylinder

has a bore of 3 in, and each piston has a stroke of 4 in. The minimum enclosed volume of each piston is

20% of the maximum enclosed volume. How much power will this engine produce when operated at

3500 rpm?

Watch this screencast when you want the answer:http://www.youtube.com/watch?v=Z_u3uHS4KrI

9-111

http://www.youtube.com/watch?v=Z_u3uHS4KrIhttp://www.youtube.com/watch?v=Z_u3uHS4KrIhttp://www.youtube.com/watch?v=Z_u3uHS4KrIhttp://www.youtube.com/watch?v=Z_u3uHS4KrI

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10-58(also try 10-59 if this is fun for you and you are good with EES) Here is a screencast with some

hints:http://www.youtube.com/watch?v=0hTGnh1X7EM

http://www.youtube.com/watch?v=0hTGnh1X7EMhttp://www.youtube.com/watch?v=0hTGnh1X7EMhttp://www.youtube.com/watch?v=0hTGnh1X7EM

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