FUNDAMENTALS OF ENGINEERING THERMODYNAM
8th Edition
ISBN: 2818440116926
Author: MORAN
Publisher: WILEY CONS
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Chapter 7.7, Problem 11E
To determine
Relation between the exergy destruction and a cell phone.
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A triangular distributed load of max intensity w acts on beam
AB. The beam is supported by a pin at A and member CD,
which is connected by pins at C and D respectively.
Determine the largest load intensity, Wmax, that can be
applied if the pin at D can support a maximum force of
18000 N. Also determine the reactions at A and C
and express each answer in Cartesian components. Assume
the masses of both beam and member ✓ are
negligible.
Dwas
шал
=
A
BY NC SA
2016 Eric Davishahl
C
D
-a-
Ур
-b-
X
B
W
Values for dimensions on the figure are given in the following
table. Note the figure may not be to scale.
Variable Value
a
6.6 m
b
11.88 m
C
4.29 m
The maximum load intensity is
=
wmax
N/m.
The reaction at A is A =
The reaction at C is
=
i+
Ĵ N.
ĴN.
12
i+
The beam is supported by a pin at B and a roller at C and is
subjected to the loading shown with w =110 lb/ft, and F
205 lb.
a.) If M
=
2,590 ft-lb, determine the support reactions at B
and C. Report your answers in both Cartesian components.
b.) Determine the largest magnitude of the applied couple M
for which the beam is still properly supported in equilibrium
with the pin and roller as shown.
2013 Michael Swanbom
CC
BY NC SA
M
ру
W
B⚫
C
F
ka
b
Values for dimensions on the figure are given in the following
table. Note the figure may not be to scale.
Variable Value
a
3.2 ft
b
6.4 ft
C
3 ft
a.) The reaction at B is B =
The reaction at C is C =
ĵ lb.
i+
Ĵ lb.
b.) The largest couple that can be applied is M
ft-lb.
==
i+
The beam ABC has a mass of 79.0 kg and is supported by
the rope BDC that runs through the frictionless pulley at D
. The winch at C has a mass of 36.5 kg. The tension in the
rope acts on the beam at points B and C and counteracts
the moments due to the beam's weight (acting vertically at
the midpoint of its length) and the weight of the winch
(acting vertically at point C) such that the resultant moment
about point A is equal to zero. Assume that rope segment
CD is vertical and note that rope segment BD is NOT
necessarily perpendicular to the beam.
a.) Compute the tension in the rope.
b.) Model the two forces the rope exerts on the beam as a
single equivalent force and couple moment acting at point B.
Enter your answer in Cartesian components.
c.) Model the two forces the rope exerts on the beam as a
single equivalent force (no couple) and determine the
distance from A to the point along the beam where the
equivalent force acts (measured parallel to the beam from A
). Enter your answer…
Chapter 7 Solutions
FUNDAMENTALS OF ENGINEERING THERMODYNAM
Ch. 7.7 - Prob. 1ECh. 7.7 - Prob. 2ECh. 7.7 - Prob. 3ECh. 7.7 - 4. A pail of water initially at 20°C freezes when...Ch. 7.7 - Prob. 5ECh. 7.7 - Prob. 6ECh. 7.7 - 7. After a vehicle receives an oil change and lube...Ch. 7.7 - Prob. 8ECh. 7.7 - Prob. 9ECh. 7.7 - Prob. 10E
Ch. 7.7 - 11. How does the concept of exergy destruction...Ch. 7.7 - 12. In terms of energy, how does the flight of a...Ch. 7.7 - Prob. 13ECh. 7.7 - Prob. 14ECh. 7.7 - Match the appropriate definition in the right...Ch. 7.7 - 6. Which of the following statements is false when...Ch. 7.7 -
7. Steam contained in a piston–cylinder assembly...Ch. 7.7 - Prob. 8CUCh. 7.7 - Prob. 9CUCh. 7.7 - Prob. 10CUCh. 7.7 - Prob. 11CUCh. 7.7 - Prob. 12CUCh. 7.7 - Prob. 13CUCh. 7.7 - Prob. 14CUCh. 7.7 -
15. Which of the following statements does not...Ch. 7.7 - Prob. 16CUCh. 7.7 - Prob. 17CUCh. 7.7 - Prob. 18CUCh. 7.7 - Prob. 19CUCh. 7.7 - Prob. 20CUCh. 7.7 - Prob. 21CUCh. 7.7 - Prob. 22CUCh. 7.7 - Prob. 23CUCh. 7.7 - Prob. 24CUCh. 7.7 - Prob. 25CUCh. 7.7 - Prob. 26CUCh. 7.7 - Prob. 27CUCh. 7.7 - Prob. 28CUCh. 7.7 - Prob. 29CUCh. 7.7 - Prob. 30CUCh. 7.7 - 31. Exergy transfer accompanying heat transfer is...Ch. 7.7 - Prob. 32CUCh. 7.7 -
33. The well-to-wheel efficiency compares...Ch. 7.7 - Prob. 34CUCh. 7.7 - Prob. 35CUCh. 7.7 - Prob. 36CUCh. 7.7 - Prob. 37CUCh. 7.7 - Prob. 38CUCh. 7.7 - Prob. 39CUCh. 7.7 - Prob. 40CUCh. 7.7 - Prob. 41CUCh. 7.7 - Prob. 42CUCh. 7.7 - Prob. 43CUCh. 7.7 - 44. When products of combustion are at a...Ch. 7.7 - Prob. 45CUCh. 7.7 - Prob. 46CUCh. 7.7 - Prob. 47CUCh. 7.7 - 48. Mass, volume, energy, entropy, and exergy are...Ch. 7.7 - 49. Exergy destruction is proportional to entropy...Ch. 7.7 - Prob. 50CUCh. 7.7 - Prob. 1PCh. 7.7 - Prob. 2PCh. 7.7 - Prob. 3PCh. 7.7 - Prob. 4PCh. 7.7 - Prob. 5PCh. 7.7 - Prob. 6PCh. 7.7 - Prob. 7PCh. 7.7 -
7.8 When matter flows across the boundary of a...Ch. 7.7 - Prob. 9PCh. 7.7 - Prob. 10PCh. 7.7 - 7.11 A system consists of 2 kg of water at 100°C...Ch. 7.7 -
7.12 A domestic water heater holds 189 L of water...Ch. 7.7 -
7.13 Determine the specific exergy of argon at...Ch. 7.7 - Prob. 14PCh. 7.7 - 7.15 A balloon filled with helium at 20°C, 1 bar...Ch. 7.7 - Prob. 19PCh. 7.7 - Prob. 20PCh. 7.7 - Prob. 21PCh. 7.7 - Prob. 22PCh. 7.7 - Prob. 23PCh. 7.7 - Prob. 24PCh. 7.7 - Prob. 25PCh. 7.7 - Prob. 26PCh. 7.7 - Prob. 27PCh. 7.7 - Prob. 28PCh. 7.7 - Prob. 29PCh. 7.7 - Prob. 30PCh. 7.7 - Prob. 31PCh. 7.7 - Prob. 32PCh. 7.7 - Prob. 33PCh. 7.7 - Prob. 34PCh. 7.7 - Prob. 35PCh. 7.7 - Prob. 36PCh. 7.7 - Prob. 37PCh. 7.7 - Prob. 38PCh. 7.7 - Prob. 39PCh. 7.7 - Prob. 40PCh. 7.7 - Prob. 41PCh. 7.7 - Prob. 42PCh. 7.7 - Prob. 43PCh. 7.7 - Prob. 44PCh. 7.7 - Prob. 45PCh. 7.7 - Prob. 47PCh. 7.7 - Prob. 48PCh. 7.7 - Prob. 49PCh. 7.7 - Prob. 50PCh. 7.7 - Prob. 51PCh. 7.7 -
7.52 Water at 24°C, 1 bar is drawn from a...Ch. 7.7 - Prob. 53PCh. 7.7 - Prob. 54PCh. 7.7 - Prob. 55PCh. 7.7 - Prob. 58PCh. 7.7 - Prob. 59PCh. 7.7 - Prob. 60PCh. 7.7 - 7.61. Steam enters a turbine operating at steady...Ch. 7.7 - Prob. 63PCh. 7.7 - Prob. 64PCh. 7.7 - Prob. 65PCh. 7.7 -
7.66 Air enters a turbine operating at steady...Ch. 7.7 - Prob. 67PCh. 7.7 - Prob. 69PCh. 7.7 - Prob. 74PCh. 7.7 - Prob. 75PCh. 7.7 - Prob. 76PCh. 7.7 - Prob. 77PCh. 7.7 - Prob. 78PCh. 7.7 - Prob. 79PCh. 7.7 -
7.80 Steady-state operating data are shown in...Ch. 7.7 - Prob. 81PCh. 7.7 - Prob. 82PCh. 7.7 - Prob. 83PCh. 7.7 - Prob. 84PCh. 7.7 - Prob. 85PCh. 7.7 -
7.86 A gas turbine operating at steady state is...Ch. 7.7 - Prob. 87PCh. 7.7 - Prob. 88PCh. 7.7 -
7.89 Figure P7.89 shows a gas turbine power plant...Ch. 7.7 - Prob. 90PCh. 7.7 - Prob. 91PCh. 7.7 - Prob. 92PCh. 7.7 - Prob. 93PCh. 7.7 - Prob. 94PCh. 7.7 - Prob. 95PCh. 7.7 - Prob. 96PCh. 7.7 - Prob. 97PCh. 7.7 - Prob. 98PCh. 7.7 - Prob. 99PCh. 7.7 - Prob. 100PCh. 7.7 - Prob. 101PCh. 7.7 - Prob. 102PCh. 7.7 - Prob. 103PCh. 7.7 - Prob. 104PCh. 7.7 - Prob. 105PCh. 7.7 - Prob. 106PCh. 7.7 - Prob. 107PCh. 7.7 - Prob. 108PCh. 7.7 - 7.109 Air enters the insulated duct shown in Fig....Ch. 7.7 - Prob. 110PCh. 7.7 - Prob. 111PCh. 7.7 - Prob. 112PCh. 7.7 - Prob. 113PCh. 7.7 - Prob. 114PCh. 7.7 - Prob. 115PCh. 7.7 - Prob. 118PCh. 7.7 - Prob. 120PCh. 7.7 - Prob. 121PCh. 7.7 - Prob. 122PCh. 7.7 - Prob. 123PCh. 7.7 - Prob. 124PCh. 7.7 - Prob. 125PCh. 7.7 - Prob. 126PCh. 7.7 - Prob. 127PCh. 7.7 - Prob. 128PCh. 7.7 - Prob. 129PCh. 7.7 - Prob. 130PCh. 7.7 - Prob. 131PCh. 7.7 - 7.132 Figure P7.132 shows a cogeneration system...Ch. 7.7 - Prob. 133PCh. 7.7 - Prob. 134PCh. 7.7 - Prob. 135PCh. 7.7 - Prob. 136PCh. 7.7 - Prob. 137PCh. 7.7 - Prob. 138PCh. 7.7 - Prob. 139PCh. 7.7 - Prob. 140PCh. 7.7 - Prob. 141PCh. 7.7 - Prob. 142P
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