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Direct linkAgrawal, D. C.; Menon, V. J. – European Journal of Physics, 2009
A model of an endoreversible Carnot engine is considered where the piston moves with a constant speed "u." Expressions for the cycle time [tau] for the four branches, as well as output power, P[subscript W], are derived and the optimized root for maximum power is obtained in closed form. Our results are discussed in terms of the isothermal…
Descriptors: Engines, Thermodynamics, College Science, Science Instruction
Download full textNational Aeronautics and Space Administration, Hampton, VA. Langley Research Center. – 2000
The National Aeronautics and Space Administration (NASA) has produced a distance learning series of four 60-minute video programs with an accompanying Web site and companion teacher guide. This teacher guide accompanies the third video in the series. The story line of each program involves six ethnically diverse, inquisitive schoolchildren who…
Descriptors: Educational Technology, Electricity, Elementary Education, Elementary School Science
