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 13.8, Problem 3E
To determine
What hurdles have to be overcome before ethanol is more widely used to fuel vehicles and what are the prospects for overcoming these hurdles.
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PROBLEM 2.50
1.8 m
The concrete post (E-25 GPa and a
=
9.9 x 10°/°C) is reinforced with six
steel bars, each of 22-mm diameter (E, = 200 GPa and a, = 11.7 x 10°/°C).
Determine the normal stresses induced in the steel and in the concrete by a
temperature rise of 35°C.
6c
"
0.391 MPa
240 mm
240 mm
6₁ =
-9.47 MPa
For some viscoelastic polymers that are subjected to stress relaxation tests, the stress decays with
time according to
a(t) = a(0) exp(-4)
(15.10)
where σ(t) and o(0) represent the time-dependent and initial (i.e., time = 0) stresses, respectively, and t and T denote
elapsed time and the relaxation time, respectively; T is a time-independent constant characteristic of the material. A
specimen of a viscoelastic polymer whose stress relaxation obeys Equation 15.10 was suddenly pulled in tension to
a measured strain of 0.5; the stress necessary to maintain this constant strain was measured as a function of time.
Determine E (10) for this material if the initial stress level was 3.5 MPa (500 psi), which dropped to 0.5 MPa (70
psi) after 30 s.
For the flows in Examples 11.1 and 11.2, calculate the magnitudes of the Δ V2 / 2 terms omitted in B.E., and compare these with the magnitude of the ℱ terms.
Chapter 13 Solutions
Fundamentals of Engineering Thermodynamics
Ch. 13.8 - Prob. 1ECh. 13.8 - Prob. 2ECh. 13.8 - Prob. 3ECh. 13.8 - Prob. 4ECh. 13.8 - Prob. 5ECh. 13.8 - Prob. 6ECh. 13.8 - Prob. 7ECh. 13.8 - Prob. 8ECh. 13.8 - Prob. 9ECh. 13.8 - Prob. 10E
Ch. 13.8 - Prob. 11ECh. 13.8 - Prob. 12ECh. 13.8 - Prob. 13ECh. 13.8 - 14. What barriers do fuel cell–powered vehicles...Ch. 13.8 - 1. When octane burns completely with 400% of...Ch. 13.8 - Prob. 2CUCh. 13.8 - 3. Butane burns completely with 150% of...Ch. 13.8 - Prob. 4CUCh. 13.8 - Prob. 5CUCh. 13.8 - 6. When methane burns completely with 200% of...Ch. 13.8 - Prob. 7CUCh. 13.8 - Prob. 8CUCh. 13.8 - Prob. 9CUCh. 13.8 - Prob. 10CUCh. 13.8 - Prob. 11CUCh. 13.8 - Prob. 12CUCh. 13.8 - Prob. 13CUCh. 13.8 - Prob. 14CUCh. 13.8 - Prob. 15CUCh. 13.8 - Prob. 16CUCh. 13.8 - Prob. 17CUCh. 13.8 - Prob. 18CUCh. 13.8 - Prob. 19CUCh. 13.8 - Prob. 20CUCh. 13.8 - Prob. 21CUCh. 13.8 - Prob. 22CUCh. 13.8 - Prob. 23CUCh. 13.8 - Prob. 24CUCh. 13.8 - Prob. 25CUCh. 13.8 - Prob. 26CUCh. 13.8 - 27. A fuel cell type well suited for powering...Ch. 13.8 - Prob. 28CUCh. 13.8 - Prob. 29CUCh. 13.8 - Prob. 30CUCh. 13.8 - Prob. 31CUCh. 13.8 - Prob. 32CUCh. 13.8 - Prob. 33CUCh. 13.8 - Prob. 34CUCh. 13.8 - Prob. 36CUCh. 13.8 - Prob. 37CUCh. 13.8 - Prob. 38CUCh. 13.8 - Prob. 39CUCh. 13.8 - Prob. 40CUCh. 13.8 - Prob. 41CUCh. 13.8 - Prob. 42CUCh. 13.8 - Prob. 43CUCh. 13.8 - Prob. 44CUCh. 13.8 - Prob. 45CUCh. 13.8 - Prob. 46CUCh. 13.8 - Prob. 47CUCh. 13.8 - Prob. 48CUCh. 13.8 - Prob. 49CUCh. 13.8 - Prob. 50CUCh. 13.8 - Prob. 1PCh. 13.8 - 13.2 Ethane (C2H6) burns completely with the...Ch. 13.8 - 13.3 A gas turbine burns octane (C8H18) completely...Ch. 13.8 - 13.4 A closed, rigid vessel initially contains a...Ch. 13.8 - Prob. 5PCh. 13.8 - Prob. 6PCh. 13.8 - 13.7 Butane (C4H10) burns completely with air. The...Ch. 13.8 - Prob. 8PCh. 13.8 - Prob. 9PCh. 13.8 - Prob. 10PCh. 13.8 - Prob. 11PCh. 13.8 - Prob. 12PCh. 13.8 - Prob. 13PCh. 13.8 - Prob. 14PCh. 13.8 - Prob. 15PCh. 13.8 - Prob. 16PCh. 13.8 - Prob. 17PCh. 13.8 - Prob. 20PCh. 13.8 - Prob. 21PCh. 13.8 - Prob. 22PCh. 13.8 - Prob. 23PCh. 13.8 - Prob. 24PCh. 13.8 - Prob. 25PCh. 13.8 - Prob. 26PCh. 13.8 - Hydrogen (H2) enters a combustor with a mass flow...Ch. 13.8 - 13.28 Methyl alcohol (CH3OH) burns with 200%...Ch. 13.8 - Prob. 29PCh. 13.8 - 13.30 Hexane (C6H14) burns with dry air to give...Ch. 13.8 - Prob. 31PCh. 13.8 - Prob. 32PCh. 13.8 - Prob. 33PCh. 13.8 - 13.34 Butane (C4H10) burns with air, giving...Ch. 13.8 - Prob. 35PCh. 13.8 - Prob. 36PCh. 13.8 - Prob. 37PCh. 13.8 - Prob. 38PCh. 13.8 - Prob. 40PCh. 13.8 - 13.41 Methyl alcohol (CH3OH) burns in dry air...Ch. 13.8 - 13.42 Ethyl alcohol (C2H5OH) burns in dry air...Ch. 13.8 - Prob. 43PCh. 13.8 - Prob. 44PCh. 13.8 - Prob. 45PCh. 13.8 - Prob. 46PCh. 13.8 - Prob. 47PCh. 13.8 - Prob. 48PCh. 13.8 - 13.49 Liquid ethanol (C2H5OH) at 77°F, 1 atm...Ch. 13.8 - Prob. 50PCh. 13.8 - Prob. 51PCh. 13.8 - Prob. 52PCh. 13.8 - Prob. 53PCh. 13.8 - Prob. 54PCh. 13.8 - Prob. 55PCh. 13.8 - Prob. 56PCh. 13.8 - Prob. 57PCh. 13.8 - Prob. 58PCh. 13.8 - 13.59 Calculate the enthalpy of combustion of...Ch. 13.8 - Prob. 62PCh. 13.8 - Prob. 63PCh. 13.8 - Prob. 64PCh. 13.8 - Prob. 65PCh. 13.8 - Prob. 66PCh. 13.8 - Prob. 71PCh. 13.8 - Prob. 72PCh. 13.8 - Prob. 73PCh. 13.8 - Prob. 74PCh. 13.8 - A mixture of gaseous octane (C8H18) and 200% of...Ch. 13.8 - Prob. 77PCh. 13.8 - Prob. 78PCh. 13.8 - Prob. 79PCh. 13.8 - Prob. 80PCh. 13.8 - Prob. 82PCh. 13.8 - Prob. 83PCh. 13.8 - Prob. 84PCh. 13.8 - Prob. 85PCh. 13.8 - Prob. 86PCh. 13.8 - Prob. 87PCh. 13.8 - Prob. 88PCh. 13.8 - Prob. 89PCh. 13.8 - Prob. 90PCh. 13.8 - Prob. 91PCh. 13.8 - Prob. 92PCh. 13.8 - Prob. 93PCh. 13.8 - Prob. 94PCh. 13.8 - Prob. 95PCh. 13.8 - Prob. 96PCh. 13.8 - Prob. 97PCh. 13.8 - Prob. 98PCh. 13.8 - Prob. 99PCh. 13.8 - Prob. 100PCh. 13.8 - Prob. 101PCh. 13.8 - Prob. 102PCh. 13.8 - Prob. 103PCh. 13.8 - Prob. 104PCh. 13.8 - Prob. 105PCh. 13.8 - Prob. 106PCh. 13.8 - Prob. 107PCh. 13.8 - Prob. 108PCh. 13.8 - Prob. 109PCh. 13.8 - Prob. 110PCh. 13.8 - Prob. 111PCh. 13.8 - Prob. 112PCh. 13.8 - Prob. 113P
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