Fundamentals of Engineering Thermodynamics
8th Edition
ISBN: 9781118412930
Author: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey
Publisher: WILEY
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Chapter 9.14, Problem 99P
(a)
To determine
The net power developed, in
(b)
To determine
The thermal efficiency of the cycle.
(c)
To determine
The back work ratio.
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A reservoir at 300 ft elevation has a 6-in.-diameter discharge pipe located 50 ft below the surface. The pipe is 600 ft long and drops in elevation to 150 ft where the flow discharges to the atmosphere. The pipe is made of riveted steel with a roughness height of 0.005 ft.
Determine the flow rate without a head loss
Determine the flow rate with the pipe friction head loss.
(hints: Since the velocity is not known for part b and the Reynolds number and friction factor depend on velocity, you will need to iterate to find the solution. A good first guess is the velocity from part (a))
Air at T₁-24°C, p₁-1 bar, 50% relative humidity enters an insulated chamber operating at steady state with a mass flow rate of 3
kg/min and mixes with a saturated moist air stream entering at T₂-7°C, p2-1 bar. A single mixed stream exits at T3-17°C, p3-1 bar.
Neglect kinetic and potential energy effects
Step 1
Your answer is correct.
Determine mass flow rate of the moist air entering at state 2, in kg/min.
m2 = 2.1
Hint
kg/min
Using multiple attempts will impact your score.
5% score reduction after attempt 2
Step 2
Determine the relative humidity of the exiting stream.
Փ3 =
i
%
Attempts: 1 of 3 used
25 mm
Brass core
E
=
105 GPa
0 = 20.9 x 10 °C
PROBLEM 2.49
The aluminum shell is fully bonded to the brass core and the
assembly is unstressed at a temperature of 15°C. Considering only
axial deformations, determine the stress in the aluminum when the
temperature reaches 195°C.
60 mm
Aluminum shell
E = 70 GPa
a = 23.6 × 10°C
Chapter 9 Solutions
Fundamentals of Engineering Thermodynamics
Ch. 9.14 - Prob. 1ECh. 9.14 - Prob. 2ECh. 9.14 - Prob. 3ECh. 9.14 - Prob. 4ECh. 9.14 - Prob. 5ECh. 9.14 - 6. What is the purpose of a rear diffuser on a...Ch. 9.14 - 7. What is the meaning of the octane rating that...Ch. 9.14 - Prob. 8ECh. 9.14 - Prob. 9ECh. 9.14 - 10. What is the purpose of the gas turbine–powered...
Ch. 9.14 - Prob. 11ECh. 9.14 - Prob. 12ECh. 9.14 - Prob. 13ECh. 9.14 - Prob. 14ECh. 9.14 - Prob. 15ECh. 9.14 - Prob. 16ECh. 9.14 - Prob. 17ECh. 9.14 - 1. The thermal efficiency expression given by Eq....Ch. 9.14 - Prob. 2CUCh. 9.14 - Prob. 3CUCh. 9.14 - 4. For a specified compression ratio, and assuming...Ch. 9.14 - Prob. 5CUCh. 9.14 - Prob. 6CUCh. 9.14 - 7. The value of the back work ratio of a Brayton...Ch. 9.14 - Prob. 8CUCh. 9.14 - Prob. 9CUCh. 9.14 - Prob. 10CUCh. 9.14 - Prob. 11CUCh. 9.14 - Prob. 12CUCh. 9.14 - Prob. 13CUCh. 9.14 - 14. Referring to Example 9.4, on the basis of a...Ch. 9.14 - Prob. 15CUCh. 9.14 - Prob. 16CUCh. 9.14 - Prob. 17CUCh. 9.14 - Prob. 18CUCh. 9.14 - 19. Sketch a Carnot gas power cycle on the p–υ and...Ch. 9.14 - Prob. 20CUCh. 9.14 - Prob. 21CUCh. 9.14 - Prob. 22CUCh. 9.14 - Prob. 23CUCh. 9.14 - Prob. 24CUCh. 9.14 - Prob. 25CUCh. 9.14 - Prob. 26CUCh. 9.14 - Prob. 27CUCh. 9.14 - Prob. 28CUCh. 9.14 - Prob. 29CUCh. 9.14 - Prob. 30CUCh. 9.14 - Prob. 31CUCh. 9.14 - Prob. 32CUCh. 9.14 - Prob. 33CUCh. 9.14 - Prob. 34CUCh. 9.14 - Prob. 35CUCh. 9.14 - Prob. 36CUCh. 9.14 - Prob. 37CUCh. 9.14 - Prob. 38CUCh. 9.14 - Prob. 39CUCh. 9.14 - Prob. 40CUCh. 9.14 - Prob. 41CUCh. 9.14 - Prob. 42CUCh. 9.14 - Prob. 43CUCh. 9.14 - Prob. 44CUCh. 9.14 - Prob. 45CUCh. 9.14 - Prob. 46CUCh. 9.14 - Prob. 47CUCh. 9.14 - Prob. 48CUCh. 9.14 - Prob. 49CUCh. 9.14 - Prob. 50CUCh. 9.14 - Prob. 1PCh. 9.14 - Prob. 3PCh. 9.14 - Prob. 5PCh. 9.14 - Prob. 6PCh. 9.14 - Prob. 7PCh. 9.14 - Prob. 8PCh. 9.14 - Prob. 10PCh. 9.14 - Prob. 11PCh. 9.14 - Prob. 12PCh. 9.14 - Prob. 13PCh. 9.14 - Prob. 14PCh. 9.14 - Prob. 15PCh. 9.14 - Prob. 16PCh. 9.14 - Prob. 17PCh. 9.14 - Prob. 18PCh. 9.14 - 9.19 Referring again to Fig. P9.18, let p1 = 1...Ch. 9.14 - Prob. 20PCh. 9.14 - Prob. 21PCh. 9.14 - Prob. 22PCh. 9.14 - Prob. 23PCh. 9.14 - Prob. 24PCh. 9.14 - Prob. 25PCh. 9.14 - Prob. 26PCh. 9.14 - Prob. 27PCh. 9.14 - Prob. 28PCh. 9.14 - Prob. 29PCh. 9.14 - Prob. 30PCh. 9.14 - Prob. 34PCh. 9.14 - Prob. 35PCh. 9.14 - Prob. 36PCh. 9.14 - Prob. 41PCh. 9.14 - 9.42 An ideal air-standard Brayton cycle operating...Ch. 9.14 - Prob. 45PCh. 9.14 - 9.46 Air enters the compressor of an ideal cold...Ch. 9.14 - Prob. 48PCh. 9.14 - Prob. 49PCh. 9.14 - 9.50 Air enters the compressor of an ideal...Ch. 9.14 - 9.53 The cycle of Problem 9.42 is modified to...Ch. 9.14 - 9.54 Air enters the compressor of an air-standard...Ch. 9.14 - 9.55 Air enters the compressor of a simple gas...Ch. 9.14 - Prob. 56PCh. 9.14 - 9.57 Air enters the compressor of a simple gas...Ch. 9.14 - 9.58 Air enters the compressor of a simple gas...Ch. 9.14 - 9.59 An ideal air-standard regenerative Brayton...Ch. 9.14 - Prob. 60PCh. 9.14 - Prob. 61PCh. 9.14 - 9.62 Air enters the compressor of a cold...Ch. 9.14 - Prob. 65PCh. 9.14 - Prob. 66PCh. 9.14 - Prob. 67PCh. 9.14 - 9.68 Fig. P9.68 illustrates a gas turbine power...Ch. 9.14 - Prob. 69PCh. 9.14 - 9.70 Air enters the turbine of a gas turbine at...Ch. 9.14 - Prob. 72PCh. 9.14 - Prob. 73PCh. 9.14 - 9.74 Air enters the compressor of a cold...Ch. 9.14 - 9.75 Air enters a two-stage compressor operating...Ch. 9.14 - 9.76 Air enters a two-stage compressor operating...Ch. 9.14 - 9.78 Air enters a compressor operating at steady...Ch. 9.14 - 9.79 Air enters the first compressor stage of a...Ch. 9.14 - 9.80 An air-standard regenerative Brayton cycle...Ch. 9.14 - 9.81 Air enters the compressor of a cold...Ch. 9.14 - 9.82 An air-standard Brayton cycle produces 10 MW...Ch. 9.14 - Prob. 83PCh. 9.14 - 9.84 Combining the features considered in Problem...Ch. 9.14 - 9.85 Air at 26 kPa, 230 K, and 220 m/s enters a...Ch. 9.14 - 9.87 Air enters the diffuser of a turbojet engine...Ch. 9.14 - Prob. 88PCh. 9.14 - Prob. 89PCh. 9.14 - Prob. 90PCh. 9.14 - Prob. 91PCh. 9.14 - Prob. 92PCh. 9.14 - Prob. 93PCh. 9.14 - Prob. 94PCh. 9.14 - Prob. 95PCh. 9.14 - Prob. 96PCh. 9.14 - Prob. 97PCh. 9.14 - Prob. 98PCh. 9.14 - Prob. 99PCh. 9.14 - Prob. 101PCh. 9.14 - Prob. 102PCh. 9.14 - Prob. 103PCh. 9.14 - Prob. 104PCh. 9.14 - Prob. 105PCh. 9.14 - Prob. 106PCh. 9.14 - Prob. 107PCh. 9.14 - Prob. 108PCh. 9.14 - Prob. 109PCh. 9.14 - Prob. 110PCh. 9.14 - Prob. 111PCh. 9.14 - Prob. 112PCh. 9.14 - Prob. 113PCh. 9.14 - Prob. 114PCh. 9.14 - Prob. 115PCh. 9.14 - Prob. 117PCh. 9.14 - Prob. 118PCh. 9.14 - Prob. 120PCh. 9.14 - Prob. 121PCh. 9.14 - Prob. 122PCh. 9.14 - Prob. 123PCh. 9.14 - Prob. 124PCh. 9.14 - Prob. 125PCh. 9.14 - Prob. 126PCh. 9.14 - Prob. 127PCh. 9.14 - Prob. 129PCh. 9.14 - 9.130 Steam expands isentropically through a...Ch. 9.14 - Prob. 131PCh. 9.14 - Prob. 132PCh. 9.14 - Prob. 133PCh. 9.14 - 9.134 A converging–diverging nozzle operates at...Ch. 9.14 - Prob. 135PCh. 9.14 - Prob. 137PCh. 9.14 - Prob. 138PCh. 9.14 - Prob. 139PCh. 9.14 - 9.140 Air as an ideal gas with k = 1.4 enters a...
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