Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
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Chapter 20, Problem 5P
a.
To determine
Find the mass of hydrogen fuel needed to give a vehicle range of 300 km.
b.
To determine
Find the fuel volume if hydrogen is stored in the form liquid hydrogen, compressive hydrogen gas CHG at 500 atm, and
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What are some reasons for why a company would accelerate a construction project?
For the design of a shallow foundation, given the following:
Soil: ' = 20°
c' = 52 kN/m²
Unit weight, y = 15 kN/m³
Modulus of elasticity, E, = 1400 kN/m²
Poisson's ratio, μs = 0.35
Foundation: L=2m
B=1m
Df = 1 m
Calculate the ultimate bearing capacity. Use the equation:
1
-
qu = c' NcFcs Fcd Fcc +qNqFqsFqdFqc + ½√BN√Fãs F√dƑxc
2
For '=20°, Nc = 14.83, N₁ = 6.4, and N₁ = 5.39.
(Enter your answer to three significant figures.)
qu =
kN/m²
A 2.0 m wide strip foundation carries a wall load of 350 kN/m in a clayey soil where
y = 15 kN/m³, c' = 5.0 kN/m² and ' = 23°. The foundation depth is 1.5 m. For ' = 23°:
Nc = 18.05; N₁ = 8.66; Ny
=
=
= 8.20.
Determine the factor of safety using the equation below.
qu= c' NcFcs FcdFci+qNqFqsFq
1
F
+
gd.
'qi
2
·BN√·
FF
γί
Ysyd F
(Enter your answer to three significant figures.)
FS
=
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