Loose Leaf For Introduction To Chemical Engineering Thermodynamics
8th Edition
ISBN: 9781259878084
Author: Smith Termodinamica En Ingenieria Quimica, J.m.; Van Ness, Hendrick C; Abbott, Michael; Swihart, Mark
Publisher: McGraw-Hill Education
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Chapter 12, Problem 12.14P
Problems 12.9 through 12.14 refer to the Txy diagram for ethanol(1)/ethyl acetate(2) shown in Fig.12.20.
12.14. Consider an ethanol(1)/ethyl acetate(2) mixture with x1= 0.80, initially at 80°C and 100 kPa. Describe the evolution of phases and phase compositions as the temperature is gradually reduced to 70°C.
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A mixture of oil and gas flows through a horizontal pipe with an
inside diameter of 150 mm. The respective volumetric flow rates for
the oil and gas are 0.015 and 0.29 m³s-1. Determine the gas void frac-
tion and the average velocities of the oil and gas. The friction factor
may be assumed to be 0.0045. The gas has a density of 2.4 kgm³ and
viscosity of 1 x 10-5 Nsm-2. The oil has a density of 810 kgm³ and
density of 0.82 Nsm². Answer: 0.79, 20.8 ms-1, 4 ms-1
4. An experimental test rig is used to examine two-phase flow regimes
in horizontal pipelines. A particular experiment involved uses air
and water at a temperature of 25°C, which flow through a horizontal
glass tube with an internal diameter of 25.4 mm and a length of 40 m.
Water is admitted at a controlled rate of 0.026 kgs at one end and air
at a rate of 5 x 104 kgs in the same direction. The density of water
is 1000 kgm³, and the density of air is 1.2 kgm3. Determine the mass
flow rate, the mean density, gas void fraction, and the superficial
velocities of the air and water. Answer: 0.02605 kgs 1, 61.1 kgm³, 0.94,
0.822 ms-1, 0.051 ms-1
1. Determine the range of mean density of a mixture of air in a 50:50
oil-water liquid phase across a range of gas void fractions. The den-
sity of oil is 900 kgm³, water is 1000 kgm³, and gas is 10 kgm³.
2. Describe, with the use of sketches, the various flow regimes that can
exist in a vertical pipe carrying two-phase flow (liquid and gas).
Chapter 12 Solutions
Loose Leaf For Introduction To Chemical Engineering Thermodynamics
Ch. 12 - Prob. 12.1PCh. 12 - Prob. 12.2PCh. 12 - Prob. 12.3PCh. 12 - Problems 12.3 through 12.8 refer to the Pxy...Ch. 12 - Problems 12.3 through 12.8 refer to the Pxy...Ch. 12 - Problems 12.3 through 12.8 refer to the Pxy...Ch. 12 - Problems 12.3 through 12.8 refer to the Pxy...Ch. 12 - Problems 12.3 through 12.8 refer to the Pxy...Ch. 12 - Problems 12.9 through 12.14 refer to the Txy...Ch. 12 - Problems 12.9 through 12.14 refer to the Txy...
Ch. 12 - Problems 12.9 through 12.14 refer to the Txy...Ch. 12 - Problems 12.9 through 12.14 refer to the Txy...Ch. 12 - Problems 12.9 through 12.14 refer to the Txy...Ch. 12 - Problems 12.9 through 12.14 refer to the Txy...Ch. 12 - Prob. 12.15PCh. 12 - Problems 12.16 through 12.21 refer to the Pxy...Ch. 12 - Problems 12.16 through 12.21 refer to the Pxy...Ch. 12 - Problems 12.16 through 12.21 refer to the Pxy...Ch. 12 - Problems 12.16 through 12.21 refer to the Pxy...Ch. 12 - Problems 12.16 through 12.21 refer to the Pxy...Ch. 12 - Prob. 12.21PCh. 12 - Problems 12.22 through 12.28 refer to the Txy...Ch. 12 - Problems 12.22 through 12.28 refer to the Txy...Ch. 12 - Problems 12.22 through 12.28 refer to the Txy...Ch. 12 - Problems 12.22 through 12.28 refer to the Txy...Ch. 12 - Problems 12.22 through 12.28 refer to the Txy...Ch. 12 - Problems 12.22 through 12.28 refer to the Txy...Ch. 12 - Prob. 12.28PCh. 12 - Problems 12.29 through 12.33 refer to the xy...Ch. 12 - Problems 12.29 through 12.33 refer to the xy...Ch. 12 - Problems 12.29 through 12.33 refer to the xy...Ch. 12 - Problems 12.29 through 12.33 refer to the xy...Ch. 12 - Problems 12.29 through 12.33 refer to the xy...Ch. 12 - Consider a binary liquid mixture for which the...Ch. 12 - Prob. 12.35PCh. 12 - Prob. 12.36P
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- 7. It is required to transport a hydrocarbon as a two-phase mixture of liquid and vapour along a smooth-walled pipe with an inside diam- eter of 100 mm. The total hydrocarbon flow rate is 2.4 kgs-1 with a vapour mass fraction of 0.085. The pipe is to operate at an absolute pressure of 2.2 bar. The liquid density is 720 kgm³, and viscosity is 4.8 × 10-4 Nsm², while for the vapour, the density is 1.63 kgm³, and the viscosity is 2.7 x 10-5 Nsm-2. Determine the maximum per- missible length of pipe if the pressure drop along the pipe is not to exceed 20 kNm-2. Answer: 44 marrow_forward13. Show that the gas void fraction for a flowing gas-liquid mixture can be expressed in terms of the phase velocity, quality, and densities of the mixture as 1 α = PU (1-x) 1+18 Բ. Ա. xarrow_forwardvelocis the air and water. Answer: 0.02605 kgs-1, 61.1 kgm 3, 0.94, 0.822 ms-1, 0.051 ms-1 5. Describe, with the use of sketches, the various two-phase flow regimes that can exist in a horizontal pipe carrying a liquid and a gas. 6. Explate what is mean by gas hold up and describe way which itarrow_forward
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