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 9, Problem 139P
To determine
The recommendation of condensation pressure for the refrigerant when heat is rejected to cooling medium at
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The shaft carries a total torque T0 that is uniformly distributedover its length L. Determine the angle of twist (degrees) of the shaft in termsif T0 = 1.2 kN-m, L = 2 m, G = 80 GPa, and diameter = 120 mm
7) find the Emax for figure below.
250N
Ans: Tmay 7.5 MPa
Gomm
350mm
50mm
4
Water is supplied at 150 ft³/s and 70 psi to a hydraulic turbine through a 3-ft inside-diameter inlet pipe as indicated in the figure below.
The turbine discharge pipe has a 4.8-ft inside diameter. The static pressure at section (2), 10 ft below the turbine inlet, is 10 in. Hg
vacuum. If the turbine develops 2400 hp, determine the rate of loss of available energy between sections (1) and (2).
Section (1)
P₁ =70psi
Q=150ft³/s
D₁ = 3 ft
10 ft
Turbine
power loss =
i
P₂ = 10 in. Hg
vacuum
D₂ =4.8ft
Section (2)
de
hp
Chapter 9 Solutions
Fundamentals of Thermal-Fluid Sciences
Ch. 9 - Prob. 1PCh. 9 - What is the difference between air-standard...Ch. 9 - Prob. 3PCh. 9 - Prob. 4PCh. 9 - Prob. 5PCh. 9 - Prob. 6PCh. 9 - Prob. 7PCh. 9 - Prob. 8PCh. 9 - Prob. 9PCh. 9 - Prob. 10P
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