Fundamentals Of Engineering Thermodynamics
9th Edition
ISBN: 9781119391388
Author: MORAN, Michael J., SHAPIRO, Howard N., Boettner, Daisie D., Bailey, Margaret B.
Publisher: Wiley,
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Air within a piston–cylinder assembly, initially at 33 lbf/ in.2, 510°R, and a volume of 6 ft3, is compressed isentropically to a final volume of 3 ft3.Assuming the ideal gas model with k = 1.4 for the air, determine the:(a) mass, in lb.(b) final pressure, in lbf/in.2(c) final temperature, in °R.(d) work, in Btu.
Air within a piston-cylinder assembly, initially at 50 lbf/ in.?, 510°R, and a volume of 6 ft3, is compressed isentropically to a final
volume of 1.75 ft³.
Assuming the ideal gas model with k = 1.4 for the air, determine the:
(a) mass, in Ib.
(b) final pressure, in Ibf/in.2
(c) final temperature, in °R.
(d) work, in Btu.
A system consists of 2 kg of carbon dioxide gas initially at state 1, where p₁ = 1 bar, T₁ = 300 K. The system undergoes a power cycle
consisting of the following processes:
Process 1-2: Constant volume to p2 = 6 bar.
Process 2-3: Expansion with pv¹.4 = constant.
Process 3-1: Constant-pressure compression.
Assuming the ideal gas model and neglecting kinetic and potential energy effects, calculate thermal efficiency.
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