ELEMENTS OF CHEM. REACTION ENGR
5th Edition
ISBN: 9780135486498
Author: Fogler
Publisher: INTER PEAR
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Chapter 9, Problem 9.19P
A CSTR is being operated at steady state. The cell growth follows the Monod growth law without inhibition. The exiting substrate and cell concentrations are measured as a function of the volumetric flow rate (represented as the dilution rate), and the results are shown below. Of course, measurements are not taken until steady state is achieved after each change in the flow rate. Neglect substrate consumption for maintenance and the death rate, and assume that Yp/c is zero. For run 4, the entering substrate concentration was 50 g/dm3 and the volumetric flow rate of the substrate was 2 dm3/h.
- (a) Determine the Monod growth parameters μmax and KS.
- (b) Estimate the stoichiometric coefficients, Yc/s and Ys/c.
- (c) Apply one or more of the six ideas in Preface Table P-4, page xxviii, to this problem.
- (d) How could you make this problem more difficult?
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67%
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Determine the relative amounts (in terms of volume fractions) for a 67.0 wt% Pb-33.0 wt% Mg alloy at 425°C. The densities of lead
and magnesium at 425°C are given as follows:
PPb 10.96 g/cm³
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You may also want to use Animated Figure 9.20.
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Advance Statistics and DOL
01 (90%): Use the below experimental regions information and the data given in the
below table to run and analyze the Yield of reactor presented below:
Factors;
Response:
Temperature (°C): (150, 250)
Pressure (bar): (1.5, 10)
Flow Rate (L/min): (10, 30)
Yield (%): Hypothetical yield data for each combination of factors.
Use 2 factorial, full factorial, Central Composite, and Box-Behnken designs to
construct the design tables that are required to run the experiments (real and coded).
Then analyze the results using MINITAB software to show the regression model for
you think is
the Yield and most effective parameters and interaction. Which design do
the giving best model fitting based on your results? (Note; use 3 center point).
02 (10%): Use the Hypothetical yield data shown in the below Table to find the
variance and standard deviation and the median.
Hypothetical Yield Data
Run Temperature (°C)
Pressure (bar)
Flow Rate (L/min) Yield (%)
1
150
1
10
65
2
150
1…
Chapter 9 Solutions
ELEMENTS OF CHEM. REACTION ENGR
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