Calculate H using plume rise equations for an 80 m
high source (h) with a stack diameter = 5 m,
stack exit velocity = 12 m/s, wind speed at stack height = 1.9
m/sec,
Q=100g/sec. stack gas temperature = 80 oC (353 K), ambient temp = 25 o C (298 K), and sunny day with stability condition
Determine the total plume height (_________) m
Determine the sigma z at the distance for MGLC. (____________)
m
Calculate the distance for MGLC (__________) Determine MGLC at its
location on the centerline. (____________) micro-gram/m3
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6. Distillation: Why do we need reflux to return back to distillation columns? How the reflux ratio will affect the design and operations of distillation process.
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As an engineer in your firm, you are tasked with decreasing the pressure drop across a packed column. Would you increase or decrease the packing size with all the operating variables held constant? Justify.
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Using the Fenske equation, an engineer determines that the number of stages for a given separation is 12. For the same conditions, the engineer wants to operate the distillation column using 15 equilibrium stages to achieve the desired separation. Is it possible? Justify your answer
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What are the factors that have the largest influence on the
efficiency of an adsorption or absorption
process in the control of gases and vapors from industrial
sources?
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A stream of pure cyclopentane vapor flowing at a rate of 1550 L/s at 150 ºC and 1 atm of pressure enters a cooler, which is operating at 1 atm. The cooler functions as a flash separator (one liquid outlet stream, one vapor outlet stream) with 75% of the feed being condensed and exiting the cooler at 1 atm. The liquid stream exiting the cooler is in equilibrium with the exiting vapor. Use a molar flow and enthalpy summary table to help organize your work.
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One mole of carbon monoxide at 10 ºC is completely burnt at 1 atm pressure with 50% excess air. The air is fed to the burner at a temperature of 540 ºC. The combustion products leave the burner chamber at 425 ºC. Use a molar flow and enthalpy summary table to help organize your work.
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What, if any, effect would result from calculating saturation concentration when there was a lot excess solid urea suspended in solution after saturation was reached?
a. Saturation concentration would be falsely low
b. There would be no effect
c. Saturation concentration would be falsely high
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What is the most important issue Biomedical Engineering is facing? Why? Give examples or supporting evidence. ( answer should be in a paragraph format)
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How to estimate the size of a heat exchanger that is heat water up from 20C-120C.
5,000,000 g of H2O needed (5000 L H2O)
I have calculated that Q = 2.093*10^9 J
Please tell me how to determine what the size will be and how much power will be required for this heat exchanger to operate. please explain each step and equation
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Describe how damaged or cut spent nuclear fuel is contained and stored in L Basin.
What is the most likely cause of cladding failure for aluminum clad spent nuclear fuel stored in L Basin?
In the L Basin Water Chemistry Control System, which
equipment processes the basin water to control and minimize
corrosion of the spent fuel?
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The reversible reaction aA « bB+cC is performed in a membrane reactor – C diffuses through the membrane. If the feed is pure A at 298K and 1.02 atm and the reactor volume is 500L, find the molar rates, Fj, the concentrations, Cj, and the conversion of A as a function of reactor volume. What is the conversion of A for this reactor? Data: k1, forward rate constant is 1 (min-1); Kc (equilibrium constant) = 2.198 x 104 mol/m3, kc (mass transfer coefficient) = 4.2 (1/min), FAo=10 mol/min; a=1, b=1,c=1
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