1. Calculate the heat required to raise the temperature of 1.5 mol of benzene from 300oC
to 700oC in a steady-flow process at a pressure sufficiently low that may be considered as
an ideal gas. Tip: Please read the textbook page 125-127 and pay particular
Bio151 F15
Quiz 2
Prof Francis
Directions
- Please fill out your name and SPIRE ID number on the scantron sheet.
- Mark your answers on your quiz sheet and take it with you.
- Make sure to read the que
ChE 226 Homework Assignment 8
1. Heat in the amount of 150 kJ is transferred directly from a hot reservoir at TH = 550 K to two
cooler reservoirs at T1 = 350 K and T2 = 250 K. The surroundings temperature is T = 300 K. If
the heat transferred to the reser
Solution - ChE 226 Home Work Assignment 7, 03/30/2016
1. An ideal gas with constant heat capacity undergoes a change of state from conditions T1, P1 to
conditions T2, P2. Determine H and S from the following case
T1 = 400 K, P2 = 1.2 bar, T2 = 500 K, P2 =
Solution - ChE 226 Home Work Assignment 2
1. A nonconducting container filled with 35 kg of water at 20 oC is fitted with a stirrer, which is
made to turn by gravity acting on a weight of mass 15 kg. The weight falls slowly through a
distance of 50 m in d
ChE 226 Homework 7
April 22, 2016
1
1. An ideal gas with constant heat capacity undergoes a change of state from
conditions T1 , P1 to conditions T2 , P2 . Determine H and S from the
following case:
T1 = 400K,
P1 = 1.2bar,
Lbar
R = 0.08314 Kmol
T2 = 500K,
CHEM-ENG 120
Spring 2016
Homework 6
Due Monday February 29 at 11:55pm
WileyPLUS Part
There is no WileyPLUS component to HW 6.
Moodle Part
The problems listed below should be solved and submitted through Moodle as a single
PDF, per the instructions given i
CHEM-ENG 120
Spring 2016
Homework 5
Due Tuesday February 23 at 11:55pm
WileyPLUS Part
There is no WileyPLUS component to HW 5.
Moodle Part
The problems listed below should be solved and submitted through Moodle as a single
PDF, per the instructions given
CHEM-ENG 120
Spring 2016
Homework 4
Due Saturday February 13 at 11:55pm
WileyPLUS Part
There is no WileyPLUS component to HW 4.
Moodle Part
The problems listed below should be solved and submitted through Moodle as a single
PDF, per the instructions given
Process Unit Control System Design
1.
Influence of process design
2.
Selection of control system variables
3.
In-class exercise
4.
Process safety
Process Unit Control System Design
Influence of Process Design
Introduction
Control system requirements
Safe
Transfer Functions Part 2
1.
2.
Introduction to second-order systems
Dynamic responses of second-order
systems
3.
In-class exercise
4.
Poles and zeros
5.
Time delays
Transfer Functions
Introduction to Second-order
Systems
Second-order System Example
Isoth
Control System Instrumentation
1.
Sensors, transmitters and transducers
2.
Control valves
3.
In-class exercise
Control System Instrumentation
Sensors, Transmitters and
Transducers
Introduction
Stirred tank heating system
Measured liquid temperature with
Transfer Functions Part 1
1.
Transfer functions
2.
First-order systems
3.
In-class exercise
4.
Integrating systems
Transfer Functions
Introduction
Transfer Functions
The transfer function
Represent relation between input U(s) and output Y(s) in
the Lapla
Simulink: Model Linearization
1.
2.
Tools for model linearization and
analysis
In-class exercise: bioreactor
Simulink: Model Linearization
Tools for model linearization and
analysis
Model Linearization
dx
f (x, u)
dt
0 f ( x, u )
dx '
Ax'Bu '
dt
Procedure
Introduction
1.
Motivation for process control
2.
Process examples
3.
Control system design
4.
Overview of the course
Introduction
Motivation for Process Control
Need for Process Automation
The technological environment
More complex and integrated plants
Simulink: s-functions
Function syntax
In-class exercise: bioreactor
Simulink: s-functions
Function Syntax
Simulink M-file S-Functions
o Primary purpose
Simulating nonlinear dynamics with MATLAB
o How they work
Example M-file S-function script (Simulink/
Simulink: Open-loop Simulation
1.
Background
2.
In-class exercise
Simulink: Open-loop Simulation
Background
Simulink Model bioreactor_openloop.mdl
D
To Workspace
bioreactor
S -Function
0.65
Dilution rate
r
To Workspace 1
Open-loop Simulation
Previously we
Simulink: Introduction
MATLAB & Simulink
In-class exercise: mixing tank
Simulink: Introduction
MATLAB and Simulink
MATLAB
MATLAB is an interpreted language and
interactive environment that enables you
to input and perform computationally
intensive tasks
Matlab Control System Analysis
1.
Control system toolbox
2.
In-class exercise
Matlab Control System Analysis
Control System Toolbox
Control System Toolbox
Provides algorithms and tools for analyzing,
designing and tuning linear control systems.
System can
Laplace Transform
1.
The Laplace transform
2.
In-class exercise
3.
Solution of linear differential equations
4.
Storage tank example
Laplace Transform
Definition and Application
The Laplace Transform
Definition
F ( s ) L[ f (t )] f (t )e st dt
0
Time (t)
Closed-Loop Dynamic Responses
1.
Liquid level control system
2.
Proportional control responses
3.
In-class exercise
4.
PI control responses
Closed-loop Dynamic Responses
Liquid Level Control System
Introduction
Block diagrams
Convenient tool to represent
Closed-Loop Transfer Functions
1.
Illustrative example
2.
Derivation of closed-loop transfer functions
3.
In-class exercise
Closed-loop Transfer Functions
Illustrative Example
Basic Tools
Block diagrams
Convenient tool to represent closed-loop systems
A
Empirical Modeling
1.
Introduction
2.
First-order transfer function models
3.
In-class exercise
4.
Integrating and second-order transfer
function models
Empirical Modeling
Introduction
Motivation
Fundamental models
Derived from conservation principles
T
First Principles Process Modeling
1.
Liquid holding and heating tanks
2.
In-class quiz
3.
Continuous chemical reactor
4.
Continuous biochemical reactor
First Principles Process Modeling
Liquid Holding and Heating Tanks
Background
Basic modeling approaches
Written Homework #7
ChE 361
Spring 2015
Problem 1. Consider a process designed to transfer a gas component into a liquid phase. The
process consists of a gas phase of constant density g , constant volume Vg and mass concentration
Cg , and a liquid phase o
Final Projects
ChE 361
Spring 2015
Complete one of the following projects. Your 15 page report should consist of a problem statement, model/data description with equations and parameters as appropriate, problem solution
method, results and discussion, bri