Chemical Engineering Calculations
CHEU 308
Northeastern University
Chemical Engineering Department
CHEU 308: Chemical Engineering Calculations
Fall 2005
Instructor:
Dr. Katherine S. Ziemer
Office: 451 Snell
Lab: 148 Egan
Phone: 373-2990
Phone: 373-8553
E-mail: kziemer@coe.neu.edu
class web site: http://www1.coe.neu.edu/~kziemer/
Mentors:
Ms. Aneesha Sharma
Office: 104 Mugar
Phone: 373-8615
E-mail: sharma.ane@neu.edu
Schedule:
Class (4SH): M, W, Th
Class (4SH): M, W, Th
Prof. Ziemer Office Hours:
8:00 am – 9:05 am
308 SN
4:35 pm – 5:40 pm 161 RY
11:00 to 12:30 Tuesdays
2:00 to 3:30 Fridays
And anytime by appointment
Ms. Aneesha Sharma Office Hours: Mondays: 1:00 to 2:30
Wednesdays: 1:00 to 2:30
And anytime by appointment
Voluntary Problem Sessions:
Tuesdays 6:30 to ???
305 SH
EXCEPT: 9/20 and 11/15 108 West Village G
Co-requisite:
CHEU 309 (1SH):
Each student is required to sign up for 1 section of CHEU 309
Text:
Required: Felder, R. M., Rousseau, R.W. “Elementary Principles of
Chemical Processes” John Wiley & Sons Inc. 3rd ed. (2005)
Reference: Himmelblau, D.M., and Riggs, J.B. “Basic Principles and
Calculations in Chemical Engineering” Prentice Hall 7th ed. (2004)
Prerequisites: CHM 1132, CHM1138,
Goals of CHEU 308 and 309:
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Students will develop skills with methodologies, resources, and
fundamental concepts used to formulate and solve material and energy
balances on chemical process systems.
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Chemical Engineering Calculations
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CHEU 308
Students will practice using the methodologies, resources, and
fundamental concepts to formulate and solve material and energy
balances on chemical process systems.
Students will develop skills to use Excel and MatLab as tools to solve
chemical engineering problems, and will evaluate those answers for
reasonableness based on fundamental concepts.
Students will build a strong foundation of knowledge and motivation for
future chemical engineering classes in thermodynamics, kinetics,
transport, and unit operations.
Students will develop skills to critically analyze written information,
identify chemical engineering problems from written information, and
develop multiple solutions to chemical engineering problems.
Students will develop written communication and logic skills necessary
to clearly and logically communicate and document solution
methodologies and solutions.
Students will build good team work skills, critical thinking habits, and
problem solving skills
Students will discuss and engage in thinking about the many applications
of chemical engineering, the many possible career fields within chemical
engineering, and the societal responsibilities of the Chemical Engineering
Profession.
Map with Chemical Engineering Program Educational Objectives (PEOs) and
Program Outcomes (POs): CHEU 308/9 are the first classes that students take as
Chemical Engineers and thus sets the foundation for all future classes in the curriculum.
CHEU 308/9 is an integral part of meeting the following PEOs and POs: Identify and
solve chemical engineering problem (PEO 1, PO a,e), Understand, analyze, and design
chemical processes (PEO 2, PO b,c), Be proficient in the use of modern engineering
tools (PEO 3, PO b,k), Be proficient in oral and written communications of their work
and ideas (PEO 4, PO g), Become independent learners and workers; participate
effectively in intra-disciplinary and interdisciplinary groups (PEO 5, PO d), Understand
the environmental and safety impacts of their work as a chemical engineer (PEO 7, PO
f,j), Understand the global and societal impacts of engineering problems and solutions
(PEO 8, PO h,j), Conduct themselves in accordance with the highest ethical and
professional standard (PEO 9, PO f), Be prepared for lifelong learning and continuing
education (PEO 10, PO i,j)
Map with Northeastern University Academic Common Experience (ACE)
Objectives: CHEU 308/9 is an integral part of meeting the following Northeastern
University ACE objectives: Effective Thinking, Quantitative Thinking, Information
Literacy, Personal Perspective, Connections Between College and Work, Connections
Between Individual and Society, Connections Between Individuals and Lifelong Study
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Chemical Engineering Calculations
CHEU 308
Specific Course Objectives for CHEU308: Below you will find a list of skills that you
can expect to achieve by the each quiz/exam of this course. Note that this is a list of the
new skills that will be first tested on that quiz or exam. Skills from previous quizzes or
exams may also be required in order to perform the skills on subsequent quizzes or
exams.
NOTE: DUE TO BEING OUT OF TOWN MORE THAN ANTICIPATED,
“QUIZ 2” HAS BECOME A TAKE HOME “MIDTERM” AND THERE
ARE ONLY 3 QUIZES IN THE “QUIZES” SECTION OF THE GRADE
INSTEAD OF 4.
By Quiz 1, each student shall be able to:
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Apply and manipulate SI, CGS, and American standard base, derived, and
dimensionless units.
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Recognize dimensionally balanced equations and apply consistent units to
an equation.
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Correctly use significant figures.
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Solve process problems dealing with the process variables of mass flow
rate, molar flow rate, volumetric flow rate, mass fraction, mole fraction,
weight fractions, composition, and concentrations.
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Solve problems using specific gravity, density, and specific volume.
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Evaluate calculated answers for reasonableness
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Solve problems dealing with temperature.
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Solve problems dealing with pressure.
By the MidTerm “Quiz 2”, each student shall, in addition to the skills for
Quiz 1, be able to:
 Apply the principles of manometers
 Identify continuous, batch, and semi-batch processes and identify whether
those systems are steady state or transient.
 .Define a system and perform a degree of freedom analysis.
 Convert “words” of a process to “flowsheet” of a process.
 Apply a logical, well-documented methodology to any new material balance
problem.
 Apply the general balance equation (mass, mass species, mole, mole species)
to single unit, non-reactive systems
 Apply the general balance equation (mass, mass species, mole, mole species)
to single unit, reactive systems using molecular species balances, extent of
reaction, and atomic balances.
 Apply the definition of theoretical air in solving combustion processes.
 Apply a Degree of Freedom Analysis to any single unit system.
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CHEU 308
By Quiz 3, each student shall, in addition to the skills for Quiz 1 and the
MidTerm Exam, be able to:
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Recognize and solve processes with bypass, purge, and recycle streams.
Recognize and solve processes with filters, extractors, distillation columns,
mixers, condensers, reboilers, strippers, evaporators, and reactors.
Define independent systems within a multi-unit process and perform a degree
of freedom analysis on those systems.
Apply the general balance equation (mass, mass species, mole, mole species)
to multi-unit, non-reactive systems
Apply the general balance equation (mass, mass species, mole, mole species)
to multi-unit, reactive systems using molecular species balances, extent of
reaction, and atomic balances.
By Quiz 4 each student shall, in addition to the skills for Quiz 1, Quiz 2, and
the MidTerm Exam, be able to:
 Solve problems dealing with the Ideal Gas Equation of State.
 Solve problems dealing with the Ideal Gas and Ideal Liquid mixtures.
 Solve problems dealing with real gases (truncated Virial EOS, generalized
compressibility factors) and real gas mixtures (Kay’s Rule)
 Apply Antoine’s Equation and the Claussius/Clayperon Equation to single
component 2-phase systems Apply Gibbs Phase Rule
 Apply Rault’s Law and Henry’s Law and recognize when it is appropriate to
use them.
 Solve process systems where equations of state (real and ideal) are needed to
solve for unknowns.
 Solve process systems where vapor/liquid equilibrium information is needed
to solve for unknowns.
By Quiz 4 each student shall, in addition to the skills for Quiz 1, Quiz 2, the
MidTerm Exam, and Quiz 3, be able to:
By the Final Exam each student shall, in addition to the skills for Quiz 1,
Quiz 2, the MidTerm Exam, Quiz 3, and Quiz 4, be able to:
 Apply the General Energy Balance to open and closed, continuous, batch, and
semi-batch systems.
 Reduce the General Energy Balance for non-reactive systems.
 Apply the energy balance to non-reactive systems.
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Chemical Engineering Calculations
CHEU 308
Grading:
Your final course grade is divided into 4 parts:
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Homework (25%)
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3 Quizzes (25%)
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Mid-Term “Quiz 2” (25%)
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Final Exam (25%)
Each homework assignment is worth 10 points, and there are 19 homework assignments
due this semester. Each quiz and exam is worth 100 points. Although the professor
maintains the right to curve the grading scale up, the students are guaranteed the
minimum letter grade for the following percentage points earned:
A
AB+
B
BC+
C
CD+
D
D-
94%
90%
86%
83%
80%
76%
73%
70%
66%
63%
60%
NOTE: The grades for CHEU 309 are independent from the grades on CHEU 308.
However, the material reinforces and builds between the two classes.
Additional Assessment:
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Weekly 2-min feedback – anonymous check of concept understanding
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Section surveys – worth up to 4 points on the final grade. These section
surveys are designed for students and the professor to measure the course
effectiveness in meeting the goals that cannot be tested by exam problems.
The surveys require thoughtful, written answers. They are voluntary. A
thoughtfully completed survey will be worth 1 point.
Policies:
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Late homework gets 1/2 credit if turned in up to 24 hours late, and will not
be accepted beyond 24 hours late unless arrangements are made with the
professor ahead of the initial due date. Solutions to the homework will be
made available by 6:00 on the day after homework is initially due.
Solutions will be posted on the class web site:
http://www1.coe.neu.edu/~kziemer/ or blackboard
Homework is graded by the class mentors, Quizzes and Exams are graded
by the professor. Student disagreements with grading on either homework
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Chemical Engineering Calculations
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CHEU 308
or quizzes and exams should be made in writing and given to Prof. Ziemer
(mailbox in 342 SN). I will reply to your concern within 24 hours.
Quizzes and Exams are open-book open-notes unless stated otherwise
ahead of time in class. Arrangements must be made ahead of time if a
quiz or exam is going to be missed.
Points on the Quizzes 1 and 3 can be “earned back” by writing a 1 to 2page paper per problem describing what errors you made, why your
answers were incorrect, how the problem should have been solved (the
correct solution) and why the correct solution is reasonable. This must be
done individually. More details about these Earn-Back Reports will be
provided in class when appropriate, and guidelines will be posted on the
web/blackboard.
Working with groups of classmates on homework is encouraged as long
as each group member is participating in the learning and the practice
exercise. Each individual will turn in his/her own homework for an
individual grade. Exams and quizzes will be taken individually.
Class attendance is strongly encouraged and students are responsible for
all material reviewed and assignments (reading and homework) made.
The professor and the students will behave in a professional manner at all
times.
The honor code will be followed and enforced. Northeastern University
Academic Honesty Statement: Northeastern University is committed to the
principles of intellectual honesty and integrity. All members of the
Northeastern community are expected to maintain complete honesty in all
academic work presenting only what is their own work in tests and
assignments. If you have questions regarding proper attribution of the
work of others, contact your professor prior to submitting the work for
evaluation.
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Chemical Engineering Calculations
CHEU 308
Northeastern University
Chemical Engineering Department
CHEU 308: Chemical Engineering Calculations
Dr. Katherine S. Ziemer
Fall 2005
Tentative Course Schedule:
Class
1
2
3
4
5
6
7
8
9
10
11
12
13
13
Holiday
15
Date
7-Sept
Wed
8-Sept
Thurs
12-Sept
Mon
14-Sept
Wed
15-Sept
Thurs
19-Sept
Mon
21-Sept
Wed
22-Sept
Thurs
26-Sept
Mon
28-Sept
Wed
29-Sept
Thurs
3-Oct
Mon
5-Oct
Wed
6-Oct
Thurs
10-Oct
Mon
12-Oct
Wed
Topic
Department Introductions/
Introduction/ Pre-assessment
Nomenclature/ Unit Systems / Unit
Conversions
Dimensional Analysis/
Reasonableness of answers/
Significant figures
Physical properties (density, SG)/
Temperature/ Pressure
Pressure/ Pressure Measurement
Flow & Flow Measurement/ moles,
MW/ Composition
Composition/mass and mole fraction/
Concentration/ Manometers
Manometers/ Intro to material
Balances :Types of Processes,
Flowcharts, General Mass Balance
Quiz #1
Book
Due
Chapters
1
2
2
HW#1
3
3
HW#2
3
HW#3
3
3 & 4.1
General Mass Balance/ general mass
balance methodology
mass balance methodology for singleunit processes
mass balance methodology for singleunit processes/Batch and Continuous
mass balance methodology for singleunit processes/ Degrees of Freedom
mass balance methodology for singleunit processes/ Degrees of Freedom
Columbus Day Holiday
4.1-4.3
mass balance methodology for singleunit processes
4.6-4.7e
HW#4
4.1-4.3
HW#5
4.1-4.3
HW#6
4.1-4.3
4.1-4.3
HW#7
7
Chemical Engineering Calculations
16
13-Oct
Thurs
17
17-Oct
Mon
18
19-Oct
Wed
19
20-Oct
Thurs
20
24-Oct
Mon
21
26-Oct
Wed
22
27-Oct
Thurs
31-Oct
Mon
2-Nov
Wed
3-Nov
Thurs
7-Nov
Mon
23 Prof Z.
gone
24 Prof Z.
gone
25 Prof Z.
gone
26
27
28
29
30
31
32
33
9-Nov
Wed
10-Nov
Thurs
14-Nov
Mon
16-Nov
Wed
17-Nov
Thurs
21-Nov
Mon
23-Nov
Chemical Reaction Review/ mass
balance methodology for single- unit
processes with Chemical Reaction
mass balance methodology for singleunit processes with reactions/ 3
reaction methodologies – take 1
mass balance methodology for singleunit processes with reactions/ 3
reaction methodologies/ combustion
reactions
mass balance methodology for singleunit processes with Chemical
Reaction
mass balance methodology for multiunit processes Multi-unit processes,
Recycle, Purge and Bypass – no
reactions
Multi-unit processes, Recycle, Purge
and Bypass – no reactions
Multi-unit processes, Recycle, Purge
and Bypass – no reactions
MidTerm “Quiz 2”
MidTerm “Quiz 2”
MidTerm “Quiz 2”
Reactive processes – three methods –
take 2/ Multi-unit processes, Recycle,
Purge and Bypass – with reactions
Reactive multi-unit processes
CHEU 308
4.6-4.7e
HW#8
4.6-4.7e
HW#9
4.6-4.7e,
4.8
4.6-4.7e,
4.8
HW#10
4.4-4.5
HW#11
4.4-4.5
“Quiz
2” Midterm
Assign
HW#12
4.4-4.5
4.1-4.7e,
4.8
4.1-4.7e,
4.8
4.1-4.7e,
4.8
4.7f
HW #13
Quiz 2
due
4.1-4.9
Reactive multi-unit processes/ Ideal
Gas Systems/Real gas systems
gas mixtures, liquid mixtures/ real
gas systems
Quiz #3 – multi unit processes
4.1-4.9,
5.1-5.3
5.2-5.4
HW #14
Single component 2-phase systems/
Gibbs Phase Rule
Multi-component 2-phase systems
6.1-6.3
HW#16
Introduction to Energy Balances/The
7.1-7.4
HW#15
6.4-6.5
HW#17
8
Chemical Engineering Calculations
Holiday
33
34
35
36
37
Final
Exam
Wed
24-Nov
Thurs
28-Nov
Mon
30-Nov
Wed
1-Dec
Thurs
5-Dec
Mon
7-Dec
Wed
12-Dec
Mon
CHEU 308
General Energy Balance Equation
Thanksgiving Day Holiday
Introduction to Energy Balances/The
General Energy Balance Equation
Energy Balances & Thermodynamic
Data/ Reducing the Gen Eng Balance
/Energy Balances Without Reactions
Quiz 4 – multi-unit systems with real
gases, multiple phases, and mixtures
Values for non-reactive Energy
Balance Terms
Values for non-reactive Energy
Balance Terms with phase changes
8:00 am Final Exam
7.1-7.4
7.1-7.6
HW#18
8.1-8.3
HW#19
8.4
9