EBK FUNDAMENTALS OF THERMODYNAMICS, ENH
9th Edition
ISBN: 9781119321453
Author: Sonntag
Publisher: JOHN WILEY+SONS,INC.-CONSIGNMENT
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Chapter 1, Problem 1.27P
To determine
The resulting acceleration.
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Assume a Space Launch System (Figure 1(a)) that is approximated as a cantilever undamped single degree of freedom (SDOF) system with a mass at its free end (Figure 1(b)). The cantilever is assumed to be massless. Assume a wind load that is approximated with a concentrated harmonic forcing function p(t) = posin(ωt) acting on the mass. The known properties of the SDOF and the applied forcing function are given below. • Mass of SDOF: m =120 kip/g • Acceleration of gravity: g = 386 in/sec2 • Bending sectional stiffness of SDOF: EI = 1015 lbf×in2 • Height of SDOF: h = 2000 inches • Amplitude of forcing function: po = 6 kip • Forcing frequency: f = 8 Hz
13.44 The end of a cylindrical liquid cryogenic propellant
tank in free space is to be protected from external
(solar) radiation by placing a thin metallic shield in
front of the tank. Assume the view factor Fts between
the tank and the shield is unity; all surfaces are diffuse
and gray, and the surroundings are at 0 K.
Tank
T₁
Shield, T
T₁ = 100 K
E1
Solar
irradiation
Gs
ε₁ = ε₂ = 0.05
ε₁ = 0.10
Gs = 1250 W/m²
E2
Find the temperature of the shield T, and the heat flux
(W/m²) to the end of the tank.
question 664 thank you
Chapter 1 Solutions
EBK FUNDAMENTALS OF THERMODYNAMICS, ENH
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