Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
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Chapter 6, Problem 10P
To determine
The Rasmussen study that is shown in Figure 6.32 is consistent or not with the three major nuclear accidents has to be given.
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Suppose that a quantity of a radioactive substance originally weighing Xo grams decomposes at a rate proportional to the amount present and that the original quantity is left after 1000 years is halved, find the time when the amount is one-tenth of the original amount.
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Many actions involve the use of diesel construction machines that release SO2 to the air. An
action will release three sources of SO2 to the atmosphere. Assuming OD mixing, and given:
• Modeling domain area A = 100 m by 100 m
Height above ground where inversion (which traps pollution below it) begins at H = 414 m
SO2 emission rates from the three sources E1 = 100 mol/s, E2 = 50 mol/s, E3 = 15.6 mol/s
at volumetric flow rates Q1 = 100 m³/s, Q2 = 100 m/s, Q3 = 100 m/s
Horizontal wind speed profile entering the CV is V = 0.45 z0.20 with z in m and V in m/s
Loss by chemical reaction is 1st order with k = 6.39 x 10$ 1/s
Loss by deposition is 1st order with a rate = Av.C
where the deposition velocity va = 0.01 m/s and A is the domain surface area
SO, concentration entering in on wind aka "upwind" concentration = C, = 10 µmol/m3
SO2 concentration in CV immediately before action begins = Co = 10 µmol/m³
a. Draw and label a picture describing the problem.
b. Determine the flowrate of air…
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