Fundamentals of Thermal-Fluid Sciences
5th Edition
ISBN: 9780078027680
Author: Yunus A. Cengel Dr., Robert H. Turner, John M. Cimbala
Publisher: McGraw-Hill Education
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Chapter 1, Problem 6P
To determine
Why is heat transfer a non-equilibrium phenomenon?
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Can you determine the eignevalues by hand?
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Q1. A The gas-turbine cycle shown in Fig. is used as an automotive engine. In the first
turbine, the gas expands to pressure Ps, just low enough for this turbine to drive the
compressor. The gas is then expanded through the second turbine connected to the
drive wheels. The data for the engine are shown in the figure, and assume that all
processes are ideal. Determine the intermediate pressure Ps, the net specific work
output of the engine, and the mass flow rate through the engine. Find also the air
temperature entering the burner T3 and the thermal efficiency of the engine.
Exhaust
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intake
Φ
www
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www
Bumer
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Turbine
Power
turbine
et 150 kW
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P₁ = 100 kPa
T₁ = 300 K
PP₁ =60
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T₁ = 1600 K
Q2. On the basis of a cold air-standard analysis, show that the thermal efficiency of an
ideal regenerative gas turbine can be expressed as
77 = 1-
where
- () ()
гp is the compressor pressure ratio, and T₁ and…
I need to find m in R = mD from the image given. Do you really need to know what R and D is to find R. I was thinking geometrically we can find a relationship between R and D. D = R*cos(30). Then R = mD becomes m = R/D = 1/cos(30) = 1.1547. Is that correct?
Chapter 1 Solutions
Fundamentals of Thermal-Fluid Sciences
Ch. 1 - Prob. 1PCh. 1 - An office worker claims that a cup of cold coffee...Ch. 1 - One of the most amusing things a person can...Ch. 1 - How does the science of heat transfer differ from...Ch. 1 - What is the driving force for (a) heat transfer,...Ch. 1 - Why is heat transfer a nonequilibrium...Ch. 1 - Can there be any heat transfer between two bodies...Ch. 1 - Define stress, normal stress, shear stress, and...Ch. 1 - What is the difference between kg-mass and...Ch. 1 - Explain why the light-year has the dimension of...
Ch. 1 - What is the net force acting on a car cruising at...Ch. 1 - At 45° latitude, the gravitational acceleration as...Ch. 1 - What is the weight, in N, of an object with a mass...Ch. 1 - A 3-kg plastic tank that has a volume of 0.2 m3 is...Ch. 1 - Prob. 15PCh. 1 - A 3-kg rock is thrown upward with a force of 200 N...Ch. 1 - Solve Prob. 1–16 using an appropriate software....Ch. 1 - A 4-kW resistance heater in a water heater runs...Ch. 1 - A 150-lbm astronaut took his bathroom scale (a...Ch. 1 - The gas tank of a car is filled with a nozzle that...Ch. 1 - A pool of volume (in m3) is to be filled with...Ch. 1 - The weight of bodies may change somewhat from one...Ch. 1 - A man goes to a traditional market to buy a steak...Ch. 1 - Prob. 24RQCh. 1 - Consider the flow of air through a wind turbine...Ch. 1 - The drag force exerted on a car by air depends on...Ch. 1 - What is the value of the engineering software...
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