UT-Chattanooga Rowan University Manhattan College University of Connecticut University of Nevada, Reno University of Toledo Green Engineering Jim Henry

UT-Chattanooga Rowan University

Manhattan College University of Connecticut

University of Nevada, Reno University of Toledo

Green Engineering

Jim Henry C. Stewart Slater Robert P Hesketh

Ann Marie Flynn Luke E Achenie

Wallace B Whiting Martin Abraham

Examples of Teaching

Green Engineering

in Engineering Courses

http://www.rowan.edu/

greenengineering

Free, Web-based resources

Green Engineering

Examples of Teaching

Green Engineering

in Engineering Courses Username = guestPassword = guest

Green EngineeringDefinitions & Scope

Principle 1: … nonhazardousPrinciple 2: … prevent waste.Principle 3: … minimize energy consumption and materialsPrinciple 4: … maximize … efficiencyPrinciple 5: … “output pulled”Principle 6: … complexity … viewed as … investment Principle 7: … durability … a design goalPrinciple 8: … unnecessary capacity … a design flawPrinciple 9: Material diversity … be minimized Principle 10: … integration … energy and materialPrinciple 11: Products … designed for … “afterlife”Principle 12: … inputs … renewable

Green EngineeringSupport from

US Environmental Protection Agency,

Office of Prevention, Pesticides, and Toxic Substances

Work of othersD. T. Allen

D. R Shonnard

Green Engineering

All the problems have a little story to keep the students’ interest

• Freshman/General Engineering Course Material• Principles of Chemical Processes

• Materials Science • Separations Processes

• Design• Life Cycle Assessment

• System Dynamics and Control • Heat Transfer

• Chemical Engineering Thermodynamics • Transport Phenomena

Green Engineering

Green Engineering






• Green engineering topics covered in the module– Unit conversions typically used in GE calculations– Typical methods for representing the concentration of pollutants in

air and water– Data analysis of GE problems– Uncertainty in GE calculations (significant figures)

Freshman/General Engineering Course Material

Freshman/General Engineering Course Material

• Green engineering topics covered in the module– Methods used to determine a chemical’s environmental fate and

toxicity– Critical thinking for life cycle assessment of different materials– Impact of engineering decisions on a population of people

Green Engineering






Problems for use along with Materials Science and Engineering an Introductionby Callister

Green Engineering






Four examples of student work on design projects that address GE topics including sustainable engineering and design for recycling/reuse

Green Engineering






Problems, modules and projects including several that address GE topics and design for recycling/reuse

Green Engineering






Aligned with TextsSmith and CorripioSeborg, Edgar and Mellichamp

System Dynamics and Control

• Transient material balance – Oil level in a tank

– Real life spillage event

• Plant assignments -- Real operating GE “plants”

– System identification• Steady-state operating curve• Step response• Frequency response

– Controller Design• PID controllers

– Plant troubleshooting


• Real operating pilot plants– Paint-Spray Booth – Air Filtering

– Aerator Mixer at a waste water treatment plant

– Filter Wash at a waste water treatment plant

• Pilot plants operated remotely via the Web– Analysis done locally by students




• Trouble Shooting –

– Unstable Flow Controller in a GE Application


• Trouble Shooting –

– Unstable Flow Controller in a GE Application


Green Engineering






Heat Transfer

24 problems to complement different topics in 13 chapters of Incorpera & DeWitt

Heat Transfer

Heat Transfer

• Some of the Green Engineering Topics Covered – Melting and Boiling Points, Partitioning Coefficients, Henry’s

Law, TLVs and PELs– Health Hazards and Hazard Assessment Associated with

Chemical Exposure– Pollution Prevention Concepts and Terminology, Energy

Conservation Techniques– Environmental Cause and Effect of Global Warming, Ozone

Depletion– The Roles and Responsibilities of the Chemical Engineers to

their Colleagues, their Employers, and to the Protection of the Environment

Heat Transfer

Heat Transfer

Heat Transfer ConceptsStudents are required to calculate heat loss from

heated swimming pool

Heated Swimming Pool

GE Concepts

Students are required to determine the optimum time of day to turn on heater to decrease heat loss and energy usage

Heat Transfer

Heat Transfer

Ecuador Pipeline

Heat Transfer ConceptsStudents are required to calculate insulation thickness for heated transfer line

GE ConceptsStudents are required to evaluate impact of building pipeline through rainforest and areas that sustain many earthquakes, landslides and soil shifting

Heat Transfer

Heat Transfer

Replacement Windows

GE ConceptsStudents are required to complete a life-cycle study on the windows using a 25 year mortgage as basis

Heat Transfer ConceptsStudents are required to compare rate of heat transfer through standard double pane windows to argon-filled windows

Heat Transfer

Heat Transfer

I’ve had 3 students independently approach me to find out how they can pursue GE further (2 men, 1 woman)

They also happen to be 3 of the best students in the class.

--Ann Marie Flynn

Heat Transfer

http://www.rowan.edu/

greenengineering

Free, Web-based resources

Green Engineering

Examples of Teaching Green Engineering in Engineering

Courses Username = guestPassword = guest

Green Engineering

All the problems have a little story to keep the students’ interest






Green Engineering

Aligned with Text:Sandler

with references to: Elliott and LiraSmith, van Ness, and Abbott

Green Engineering






Green Engineering






Green Engineering






Aligned with TextsFelder and Rousseau

Green Engineering






Aligned with TextsFelder and Rousseau

Material and Energy balances

• Green engineering topics covered in the module– Unit conversions typically used in GE process calculations– Typical methods of representing concentration of pollutants

in a process– Balances on recycle operations in GE processes– Representation and calculation of pollutant volatility using

vapor pressure– Use of various equations of state in GE design calculations

for gas systems

Material and Energy balances

• Green engineering topics covered in the module– Recovery of energy in a process – energy integration– Energy use in green chemistry reactions, combustion processes– Mixing of solution issues in GE– Industrial case studies of GE manufacturing processes– Representation of mass and energy flows for transient processes

with GE significance

Green Engineering






Aligned with Various Texts

Separations Processes

• Equilibrium Staged Operations– Distillation– Absorption– Extraction– Stripping– Washing– Leaching

•Rate Controlled Operations

–Reverse osmosis

–Gas permeation

–Adsorption

–Ultrafiltration

–Crystallization


• Green engineering topics covered in this module– Mass and energy balances on column

• Mass Integration• Heat Integration

– Solvent selection– Better understanding of the economic

and environmental reasons for recycling


• Green engineering topics covered in this module

– Introduces concepts of regulations and government controls on emission levels

– Process optimization and innovation– Predicting the environmental impacts of

the operation






Green Engineering

Aligned with Text:Sandler

with references to: Elliott and LiraSmith, van Ness, and Abbott

• Types of Problems– Thought Questions

• to use as triggers for class discussion

– Traditional Problems• to use as normal homework or example problems

– Extended Problems• to use as group assignments or in graduate courses

• Existing Problems– Thermo Textbooks

(w/page references in Instructor Guide)– Allen and Shonnard, Green Engineering

(w/page references in Instructor Guide)

Chemical Engineering Thermodynamics


• Thermophysical Properties– Group-Contribution and Bond-Contribution Techniques

• Vapor pressure, Aqueous Henry’s Constant, etc.• Analogs to UNIFAC and Corresponding States• Uncertainty Analysis

• Green Chemistry– Refrigerant Selection

• Thermophysical Properties• Environmental Properties• Efficiencies

• CO2 Sequestration vs. Overall Efficiency


• Phase Equilibrium for Environmental Fate– VLE

• VOC’s• Henry’s Law

– LLE• MTBE to groundwater• Risk Shifting and Unintended Consequences

• Global Warming– CO2 Solubility in Seawater– Stability of CO2 Seawater Sink

• Reaction Equilibrium– NOx Formation vs. Combustion Temperature

Documents

UT-Chattanooga Rowan University Manhattan College University of Connecticut University of Nevada, Reno University of Toledo Green Engineering Jim Henry