Answered: stream with a flowrate of 10 m3/min and…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

A stream with a flowrate of 10 m3/min and an MTBE concentration of 5 g/m3 flows into the first reservoir (V=1000 m3). The first reservoir flows into the second reservoir (V=1000 m3). Additionally, another stream (10 m3/min) flows into the second reservoir, but this stream does not contain MTBE. Assume that each reservoir has a single outflow and that each reservoir may be modeled as a CSTR. Further assume that both reservoirs are full but do not contain MTBE at time 0.

a.    What is the MTBE concentration in the effluent of the first reservoir after 1 h?
b.    Write the mass balance on MTBE for the second reactor, simplifying it as much as possible. You do not need to solve the differential equation.
c.    What are the MTBE concentrations in the first and second reservoirs at steady state?

Expert Solution

Step 1: Given data:

Inflow rate = $10 straight m cubed divided by min$
Inflow concentration = $5 mu g divided by m cubed$
Reservoir volume (V) = $1000 m cubed$
Time (t) = 1 hour = 60 minutes

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