Material & Energy Balances Multimedia Modules v2.0

Graphics: Steve Wesorick, Joseph Palazzolo, Alex Wozniak, Christy Charlton, Jim Shimota, Sujata Naik, Timothy Mashue, Matthew Robertson

NSF Project "Chemical Engineering Introduction: A Multimedia Package"
Combined Research Curriculum Development Grant No. EEC 9555125

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The modules described in this booklet are:

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INTRODUCTION

The accompanying CD contains both Macintosh and Windows versions of the following multimedia-based educational modules, which focus on material and energy balances for introductory level chemical engineering students:

Title	Topic	Authors
BIOLOGICAL SYSTEMS	Material Balances on cell growth, an artificial kidney, and a cheese factory.	Prof. Henry Wang , Tim Polsinelli and Helena Hennighausen
CAR PRE-PAINTING SYSTEM	Open-ended problem requiring students to design a flowsheet and suggest modifications for waste minimization in a car painting system.	Lori Barnard, Mike Africa, and Philip Lawrence (Ford Motor Co.)
WASTE WATER TREATMENT PLANT	Wastewater treatment plant tour followed by a quiz on material balances	Jason Arthur, Amjed Al-Zoubi, Julie Messacar, with Prof. Dale Briggs
MULTIPHASE SYSTEMS	Phase equilibria in single and multicomponent systems	Susan Maskery, Eric Green, and Melissa Schlosser
PSYCHROMETRIC CHARTS	Psychrometric charts discusses how to read the charts and tests understanding with quizzes	Bradley D Ruiter and Amjed Al-Zoubi
ENTHALPY- CONCENTRATION DIAGRAMS	Enthalpy-concentration diagrams develops an understanding of parameters, usage examples, and typical problems using the chart	Melissa Schlosser

These modules, developed by University of Michigan faculty and students, are described in more detail in the following pages. Relevant chapters in the following textbooks are referenced for ease in scheduling their course use:

Felder, R.M. and R.W. Rousseau, Elementary Principles of Chemical Processes, 3rd ed. New

York: Wiley, 1999. Himmelblau, D.M. Basic Principle and Calculations in Chemical Engineering, 6th ed. Upper Saddle River, NJ: Prentice-Hall, 1996. The modules are designed to run on Macintosh System 7.0.1 or above and Windows 95 or Windows NT systems. The modules may be run from the CD or copied onto a hard-drive, and they may be installed on educational computer networks or individual studentís computers. To run each module simply open the corresponding folder and double click on the module icon.

QuickTime® is needed to view the movies, and can be installed from the CD-ROM.

BIOLOGICAL SYSTEMS

This module can be used at three stages in a material balances course. The Mass Balance Review and Cheese plant sections are applicable after an introductory lecture on mass balances. The Artificial Kidney section includes reactions but no atom balances. Once atom balances have been covered, students are prepared to move on to the Cell Metabolism section. None of the sections involve recycle streams. Although a calculator is provided to help students solve the multiple equations that result from the balances, you might suggest that they bring their own for added convenience.
Relevant textbook chapters:

Felder and Rousseau	Mass Balance Review: Chapter 4.3 - Material Balance Calculations. Cheese Plant: Chapter 4.3 - Material Balance Calculations. Artificial Kidney: Chapter 4.3 - Material Balance Calculations. Cell Metabolism: Chapter 4.7 - Balances on Reactive Processes.
Himmelblau	Mass Balance Review: Chapter 3.2 - Program of Analysis of Material Balance Problems. Cheese Plant: Chapter 3.3 - Solving Material Balance Problems That Do Not Involve Chemical Reactions. Artificial Kidney: Chapter 3.3 - Solving Material Balance Problems That Do Not Involve Chemical Reactions. Cell Metabolism: Chapter 3.4 - Solving Material Balance Problems That Involve Chemical Reactions.

Module Sections:

Mass Balance Review Presentation of the algorithm used in the module to solve material balance problems.

Cheese Plant Interactive mass balance on a cheese factory. Includes a description of the cheese manufacturing process.

Artificial Kidney Interactive mass balance on a reactive system, an artificial kidney. No atom balances or stoichiometric tables required. Includes a description of artificial kidneys.

Cell Metabolism Interactive mass balance on growing cells, requiring atom balances. Includes description of the steps in cell metabolism.

Sample interaction screen, bioreactor Sample introductory screen, cheese factory

CAR PRE-PAINTING SYSTEM
This is an open-ended problem that does not come with an answer. If assigned, difficulty would depend on the level of detail expected in the solution. Typically, this module is used as the basis of an end of term project. Knowledge of atom balances is not required. Please contact Prof. Montgomery for sample solutions.
Relevant textbook chapters:

Felder and Rousseau Chapter 4 - Fundamentals of Material Balances.

Himmelblau Chapter 3 - Material Balances.

Module Sections:

Introduction A message from the National Pollution Prevention Center

Problem Statement Presentation of the goal of the module. Also, hints and assumptions to make in order to simplify the assignment.

Plant Tour Actual videos of the twelve stages of phosphate coating taken from the Ford-Wixom assembly plant. Actual amounts of chemicals are given for formulation of a mass balance, in addition to a technical description of each stage.

The following files are also included in the CD:

Sample problem statement, in Word and pdf formats.

Spreadsheet of chemical usage, dump schedule and tank sizes, in Excel and pdf formats.

Presentaion of the problem statement movie Data sheet for a process step

WASTEWATER TREATMENT PLANT
This module is a comprehensive look at mass balances not including atom balances. It makes an excellent review of mass balances before an exam. The interactive quizzes are quite challenging, and would also make a fine addition to a homework set. Students can print out their scores as proof of completion. This module is fairly advanced, and problems are in-depth. Knowledge of recycle streams is required. Recommend that students bring a calculator with them.
Relevant textbook chapters:

Felder and Rousseau Chapter 4 - Fundamentals of Material Balances.

Himmelblau Chapter 3 - Material Balances.

Module Sections:

Introduction An introduction to the purpose and concepts of wastewater treatment. Containing an aerial view of the plant and elementary presentation of the type of wastes removed, and the processes used.

Plant Tour A tour of the Ann Arbor wastewater treatment system. Including pictures and schematics of each of the processes and questions about each step.

Mass Balance Quiz An exercise using mass balances for each process in the plant. Actual wastewater treatment plant numbers and pictures are used to give students an idea of real life applications to mass balances.

Tour screen showing aerial view of plant Mass balances on the secondary treatment process

MULTIPHASE SYSTEMS
This module is a comprehensive presentation of multiphase systems, and could be assigned prior to a first lecture on the subject. It also serves as an excellent review before an exam. The questions in the module are applicable as an addition to a homework set; students can be required to print out their final scores for credit. Although a calculator is provided to help students solve the multiple equations that result from the balances, you might suggest that they bring their own for added convenience.
Relevant textbook chapters:

Felder and Rousseau Chapter 6 - Multicomponent Systems.

Himmelblau Chapter 4 - Gases, Vapors, Liquids, and Solids.

Module Sections:

Objectives Discusses the goals of the module.

Phase Diagrams A review of phase diagrams, describing the triple point, sublimation, vaporization, critical point, and solidification.

Relative Humidity A pictorial representation of relative humidity and saturation with equations and a question to test understanding.

Pxy Diagram A step by step tutorial on the development and use of Pxy diagrams. Also explains how to apply the level rule.

Txy Diagram A demonstration of reading a Txy diagram. Also shows calculations and steps for creating a Txy diagram.

Industrial Uses Descriptions of equipment and processes that can be analyzed using single and multicomponent systems: cooling towers, heat exchangers, distillation columns, and evaporators.

Wrap-up Displays the objectives in addition to the concepts learned. Uses checkmarks to show which sections have been completed.

Tutorial on reading a Pxy diagram Multiple choice quiz about Pxy/Txy diagrams

PSYCHROMETRIC CHARTS
This comprehensive module details the full applications of psychrometric charts. It is ideal for use as an introduction to psychrometric charts before the initial lecture, or as a review of psychrometric charts. The interactive quizzes test for satisfactory understanding of the chart. They are an excellent addition to a homework set, or could be used as a review before an exam.
Relevant textbook chapters:

Felder and Rousseau Chapter 8.4 - Phase Change Operations.

Himmelblau Chapter 5.7 - Humidity Charts and Their Use.

Module Sections:

Objectives An introduction to the purpose of psychrometric charts, and a list of educational objectives.

Charts Reviews each part of a psychrometric chart, giving relevant equations. Teaches user how to read enthalpy, absolute and relative humidities, and moisture content.

Uses Applications of equipment and processes that can be analyzed using psychrometric charts: cooling towers and evaporators.

Quiz Three quizzes that become progressively more difficult test for general understanding to mastery of psychrometric charts

Description of wet bulb thermometer operation Cooling tower usage example

ENTHALPY-CONCENTRATION DIAGRAMS
This is a comprehensive introduction to enthalpy-concentration diagrams. It can be used as an assignment for students as an introduction to enthalpy-concentration diagrams before their first enthalpy concentration lecture. It also serves as an excellent review before an exam. The questions in this module are applicable as an addition to a homework set; students can be required to print out their final scores for credit.
Relevant textbook chapters:

Felder and Rousseau Chapter 8.5 - Mixing and Solution Problems.

Himmelblau Chapter 5.6 - Heats of Solution and Mixing.

Module Sections:

Objectives A list of goals the module will accomplish.

Enthalpy concentration diagrams A step-by-step tutorial on how to read enthalpy concentration diagrams. An NaOH-H2O and an NH3-H2O system are used as examples.

Uses Two examples of industrial equipment and processes that can be analyzed using enthalpy concentration diagrams: crystallizers and evaporators.

Quiz Three quizzes that increase in difficulty showing general knowledge to detailed problem solving knowledge of enthalpy-concentration diagrams.

Main menu A multiple choice energy balance problem

Return to Materials & Energy Balances Multimedia Modules page.

Mass Balance Review	Presentation of the algorithm used in the module to solve material balance problems.
Cheese Plant	Interactive mass balance on a cheese factory. Includes a description of the cheese manufacturing process.
Artificial Kidney	Interactive mass balance on a reactive system, an artificial kidney. No atom balances or stoichiometric tables required. Includes a description of artificial kidneys.
Cell Metabolism	Interactive mass balance on growing cells, requiring atom balances. Includes description of the steps in cell metabolism.


Sample interaction screen, bioreactor	Sample introductory screen, cheese factory

Felder and Rousseau	Chapter 4 - Fundamentals of Material Balances.
Himmelblau	Chapter 3 - Material Balances.

Introduction	A message from the National Pollution Prevention Center
Problem Statement	Presentation of the goal of the module. Also, hints and assumptions to make in order to simplify the assignment.
Plant Tour	Actual videos of the twelve stages of phosphate coating taken from the Ford-Wixom assembly plant. Actual amounts of chemicals are given for formulation of a mass balance, in addition to a technical description of each stage.


Presentaion of the problem statement movie	Data sheet for a process step

Introduction	An introduction to the purpose and concepts of wastewater treatment. Containing an aerial view of the plant and elementary presentation of the type of wastes removed, and the processes used.
Plant Tour	A tour of the Ann Arbor wastewater treatment system. Including pictures and schematics of each of the processes and questions about each step.
Mass Balance Quiz	An exercise using mass balances for each process in the plant. Actual wastewater treatment plant numbers and pictures are used to give students an idea of real life applications to mass balances.


Tour screen showing aerial view of plant	Mass balances on the secondary treatment process

Felder and Rousseau	Chapter 6 - Multicomponent Systems.
Himmelblau	Chapter 4 - Gases, Vapors, Liquids, and Solids.

Objectives	Discusses the goals of the module.
Phase Diagrams	A review of phase diagrams, describing the triple point, sublimation, vaporization, critical point, and solidification.
Relative Humidity	A pictorial representation of relative humidity and saturation with equations and a question to test understanding.
Pxy Diagram	A step by step tutorial on the development and use of Pxy diagrams. Also explains how to apply the level rule.
Txy Diagram	A demonstration of reading a Txy diagram. Also shows calculations and steps for creating a Txy diagram.
Industrial Uses	Descriptions of equipment and processes that can be analyzed using single and multicomponent systems: cooling towers, heat exchangers, distillation columns, and evaporators.
Wrap-up	Displays the objectives in addition to the concepts learned. Uses checkmarks to show which sections have been completed.


Tutorial on reading a Pxy diagram	Multiple choice quiz about Pxy/Txy diagrams

Felder and Rousseau	Chapter 8.4 - Phase Change Operations.
Himmelblau	Chapter 5.7 - Humidity Charts and Their Use.

Objectives	An introduction to the purpose of psychrometric charts, and a list of educational objectives.
Charts	Reviews each part of a psychrometric chart, giving relevant equations. Teaches user how to read enthalpy, absolute and relative humidities, and moisture content.
Uses	Applications of equipment and processes that can be analyzed using psychrometric charts: cooling towers and evaporators.
Quiz	Three quizzes that become progressively more difficult test for general understanding to mastery of psychrometric charts


Description of wet bulb thermometer operation	Cooling tower usage example

Felder and Rousseau	Chapter 8.5 - Mixing and Solution Problems.
Himmelblau	Chapter 5.6 - Heats of Solution and Mixing.

Objectives	A list of goals the module will accomplish.
Enthalpy concentration diagrams	A step-by-step tutorial on how to read enthalpy concentration diagrams. An NaOH-H2O and an NH3-H2O system are used as examples.
Uses	Two examples of industrial equipment and processes that can be analyzed using enthalpy concentration diagrams: crystallizers and evaporators.
Quiz	Three quizzes that increase in difficulty showing general knowledge to detailed problem solving knowledge of enthalpy-concentration diagrams.