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The rise times (unit: min) of a reactor for two batches are measured in experiment.
1.Define the sample space of the experiment.
2.Define E1 where the reactor rise time of the first batch is less than 55 min and E2 where the reactor rise time of the second batch is greater than 70 min.
3.Find E1 ∪ E2, E1 ∩ E2, and E1’.
4.Are E1 and E2 mutually exclusive?
5. Are E1 and E2 exhaustive?
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- A reactor with predominantly longitudinal dimension has reaction volume of 3,000 m3.The influent has flow rate of 600 m3/day and concentration of Na+200 g/m3 and BOD 200 g/m3. Please answer the following:a. What is the hydraulic retention time? b. What would be concentration decay model along the relative length x=L/L0? c. If it is an ideal plug flow reactor, please calculate the concentration profile along the length of the reactor, e.g., x=0.2, 0.4, 0.6, 0.8, and 1 of the total length if Na+ is a conservative species while BOD is degradable specie with reaction rate constant k = 0.4/day. d. Please plot the concentration profile vs. relative length x for Na+and BOD, respectively.Q3:-A wooden pole (550mm) diameter and relative density 0.55, has a concrete cylinder (550 mm) length,relative density 2.5 ,and of the same diameter as shown in fig.(3),attached to one end.Determine the length of pole for the system to float vertically in static equilibrium?From the test specifications given in Table 5.2(attached), show that thecompactive energy in method C is 2700 kN. m/m3.
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