An 80m deep and 100m wide river flows from the left to the right off the page. An action willrelease two sources of oil to the river: (1) the indirect runoff of oil accumulated on a bridge thatruns off site and crosses over the river and (2) the direct and permitted discharge of watercontaining oil from the activities onsite (a water pollution control plant) to the river. The oil hasa molecular weight of 100 g/mol, it fully dissolves in the river water, and it decays in the river with a rateconstant of 0.2 d-1. Estimate the potential impact of this action on the concentrationof oil in the river at a location 500m downstream of the WPCP.(1) bridge runoffQ1 = 1 m'sC = 1 mol/m(2) WPCP dischargeQ2 = 50 m'sC2 = 0.01 mol/mQin = 1000 m³'sCin = 0.001 mol/m?--500m-500m--500m80m100ma. Recommend the x, y, and z dimensions of the CV. Justify your recommendations.b. Estimate the oil concentration in the water 500m downstream of the WPCP assuming steadyand 1D mixed.c. Sketch concentration profiles showing the results. Place your origin at the left hand side ofthe CV at its bottom center, and then sketch concentration profiles as a function ofC(t,1500m,0,0), C(∞,x,0,0), C(∞,1500,y,0), and C(∞,1500,0,z).d. Explain why it is reasonable to assume that this is a 1D steady problem.

CV is not uniform with respective space concentration velocity changing and also not uniform with…

deep раве. release two sources of oil to the river: (1) the indirect runoff of oil accumulated on a br runs off site and crosses over the river and (2) the direct and permitted discharge of wa containing oil from the activities onsite (a water pollution control plant) to the river. Th a molecular weight of 100 g/mol, it fully dissolves in the river water, and it decays in th constant of 0.2 d-1. Estimate the potential impact of this action on the concentration of oil in the river at a location 500m downstream of the WPCP.

deep раве. release two sources of oil to the river: (1) the indirect runoff of oil accumulated on a br runs off site and crosses over the river and (2) the direct and permitted discharge of wa containing oil from the activities onsite (a water pollution control plant) to the river. Th a molecular weight of 100 g/mol, it fully dissolves in the river water, and it decays in th constant of 0.2 d-1. Estimate the potential impact of this action on the concentration of oil in the river at a location 500m downstream of the WPCP.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Chemical and Phase Equilibrium

Phase diagrams or equilibrium phase diagrams are the graphical representations that show the phase transformations of the constituting elements with respect to the pressure, temperature, and compositions. The diagrams show the conditions that limit the different phases, namely solid, liquid, and gas. The diagram can also be utilized to verify the relations between the state variables. Most of the phase diagrams are temperature-pressure phase diagrams, with the variable parameter as the composition. Usually other variables such as solubility and pressure parameters are not indicated in the phase diagram. For a one-component system (unary phase diagram), the phase diagram is generally a function of temperature and pressure as the state variables, or temperature and volume. However, for a binary system (two-phase) having two components, the phase diagram is a function of temperature and composition as the state variables only. Coexisting of the different phases of the constituting elements is indicated in the phase diagram. A ternary phase diagram can be characterized by consisting of three phases in equilibrium.

Question

An 80m deep and 100m wide river flows from the left to the right off the page. An action will
release two sources of oil to the river: (1) the indirect runoff of oil accumulated on a bridge that
runs off site and crosses over the river and (2) the direct and permitted discharge of water
containing oil from the activities onsite (a water pollution control plant) to the river. The oil has
a molecular weight of 100 g/mol, it fully dissolves in the river water, and it decays in the river with a rate
constant of 0.2 d-1. Estimate the potential impact of this action on the concentration
of oil in the river at a location 500m downstream of the WPCP.
(1) bridge runoff
Q1 = 1 m's
C = 1 mol/m
(2) WPCP discharge
Q2 = 50 m's
C2 = 0.01 mol/m
Qin = 1000 m³'s
Cin = 0.001 mol/m?
--500m-
500m-
-500m
80m
100m
a. Recommend the x, y, and z dimensions of the CV. Justify your recommendations.
b. Estimate the oil concentration in the water 500m downstream of the WPCP assuming steady
and 1D mixed.
c. Sketch concentration profiles showing the results. Place your origin at the left hand side of
the CV at its bottom center, and then sketch concentration profiles as a function of
C(t,1500m,0,0), C(∞,x,0,0), C(∞,1500,y,0), and C(∞,1500,0,z).
d. Explain why it is reasonable to assume that this is a 1D steady problem.

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