process flowsheetwith material and energy balances, a preliminary especification of equipment, and estimations ofcapital and manufacturing costs.Phase 3. Revision of safety and environmental hazards. Each team develops a revision ofhazards of the process designed by another team. Assessment is based on the quality anddescription of the process, the extension and depth of the revision, and the quality of thedocumentation presented. The teams use HAZOP to develop this phase. Page 8.1082.3 Proceedings of the 2003 American Society for Engineering Education Annual Conference & Exposition Copyright © 2003, American
Analysis (or Material and Energy Balances, as it is frequently called at otherschools) class simultaneously, they generally begin the semester with little or nounderstanding of basic chemical engineering concepts. Thus, in addition to learning the“nuts and bolts” of using the simulation packages, they also must learn at least therudiments of such common unit operations as heat exchangers, reactors, flash drums, anddistillation columns. Of course, at this level the students are asked to accept some of theinformation (such as the governing equations) “on faith”, with the promise that the detailswill be covered in subsequent chemical engineering classes such as Heat Transfer,Kinetics, Chemical Engineering Thermodynamics, and Mass Transfer. In this
Society for Engineering Education Annual Conference & Exposition Copyright 2003, American Society for Engineering Educationmeasure have been removed. A sample list of learning objectives is provided in Table 2 for theSophomore level material and energy balance course. Table 1. Core Chemical Engineering Courses in the Database Course Number of Learning Objectives CHEN 200: Chemical Process Principles 26 CHEN 220: Numerical Analysis 15 CHEN 300: Fluid Mechanics 12 CHEN 310: Thermodynamics 14 CHEN 316: Analysis of Chemical Process Data
Engineering Education Annual Conference & Exposition Copyright ©2003, American Society for Engineering Educationclass is asked to think about the processes taking place in an automobile. The class is askedto show an overall material and energy balance for the automobile and the scientificprinciples that are involved in an automobile process. After some discussion, the class isshown an overall process and a process flow sheet of the various process units which are apart of the overall process of the automobile with the following unit processes:• The flow of fuel and air, the ignition, combustion reactions and the exhaust of combustion products to the atmosphere,• The heat transfer process in cooling the engine,• The
able to solve more sophisticated problems using appropriate applications software. Thetypes of problems include material and energy balances, optimization problems with constraints,and statistical data analysis.4. be familiar with software for computer-aided process design and analysis.5. have experience with computer-based instrumentation, process control, data collection, andanalysis.”This report also discussed the results of a CACHE survey of practicing engineers that revealedheavy use of computers by the majority of respondents and reliance on commercial software toolsfor a variety of applications. Software applications should be employed within the curriculum todevelop the required skills, and to prepare the students for professional
semester of their senior year. The class istypical of many ChE-based control class with Course Objectives for the students of beingable to: 1) analyze the dynamics of process operations 2) understand the dynamic response of various operations 3) understand PID controllers for process operations based on both theoretical and empirical process characterizationThe outcomes arising from the objectives outlined above are intended to partially satisfyABET outcomes a, c, e, and k as well as the AIChE outcomes of demonstrating aworking knowledge of material and energy balances applied to chemical processes,process dynamics and control, and appropriate modern experimental and computationaltechniques.To achieve these objectives most of the homework
synthetic vs. a biologicalroute. The students can explore both options and design a system to accomplish the goal, thencompare yields, mass balances, etc. at the preliminary level to get them thinking about the issues,similarities, energy balances and costs, etc.Second YearWe propose to modify the second year sequences by replacing the Physical Chemistry withOrganic chemistry, and requiring that the advanced chemistry elective in the spring bebiochemistry . Physical Chemistry will be delayed until the Junior year. The courses coveringThermodynamics and Process Calculations (CBE 10,11) will be modified in content. Thetraditional first course is devoted to steady-state material and energy balances, withthermodynamics providing the background for
. are simple and safe enough to be used by unsupervised students for out of class assignments 7. allow for application to various other engineering classes in the future (i.e. Introduction to Engineering, Material and Energy Balances, Fluid Mechanics, Unit Operations and/or Reactor Design).Development of the Laboratory Kits Flexible, inexpensive kits were developed which students used to quickly put togethersmall processes and their control systems. The kits contained a variety of tanks, pumps, piping,fittings and sensors. The main pieces have quick release fittings allowing a process, includingsensors and control valves, to be assembled quickly and easily. Students connected the sensorsand
follows the hierarchy; font size implies emphasis of level. * *Senior courses are not formally a part of this study. What are shown are the typical emphases for a traditional senior-level course. Courses Involved in this Study ChE 211 – Material and Energy Balances SOPHOMORES ChE 220 – Thermodynamics I ChE 311 – Fluid Flow ChE 312 – Heat and Mass Transfer
transfer inthe human body.The learning objectives of this hands-on experiment are (1) to analyze chemical reactions thatproduce energy from food (2) to perform material and energy balances on the body, (3) toprepare a simple process flow diagram, and (4) to use a process simulator to investigate rates ofheat transfer during respiration. Students use their own gas exchange respiration data tocalculate their rate of energy expenditure and mechanical efficiency during cycling. They usereaction stoichiometry to determine the quantities of fats and carbohydrates that are used asenergy sources. They apply energy balances to determine the rate of heat transfer throughrespiration, and compare this to the total energy expenditure. Finally, students create
Inferences from Person's Responses and Performances as Scientific Inquiry into Score Meaning; American Psychologist, Vol. 50 (9), pp. 741-749, (1995).11. Nunnaly, J., Psychometric Theory, New York: McGraw-Hill, (1978).12. Tuckman, B.W., Conducting Educational Research, 5th edition, Belmont, CA: Wadsworth Group, (1999).13. Rosati, P., Specific Differences and Similarities in the Learning Preferences of Engineering Students, Session 12c1, Proceedings of the 29th ASEE/IEEE Frontiers in Education Conference, San Juan, Puerto Rico, (1999).14. Montgomery, S., Addressing Diverse Learning Styles through the Use of Multimedia: Material and Energy Balance, Proceedings of the 25th ASEE/IEEE Frontiers in Education Conference, Atlanta, GA, USA, (1995
work in the chemical industry, while 11% work in the food/ consumer products industry5.2. Are material and energy balances important for other engineering disciplines? Two examples the instructors used were: Environmental Engineers use material balances when they are Page 8.730.3 designing treatment facilities; and Mechanical Engineers use material and energy balancesProceedings of the 2003 American Society for Engineering Education Annual Conference & Exposition Copyright © 2003, American Society for Engineering Education when they complete thermodynamic and fluid analyses.3. Is the production of
n te tDevelop the unsteady-state ODEs which model the material and energy balance for achemical processSolve linear ordinary differential equationsObtain a linear approximation to a nonlinear ODETransform ODE model of a process into a transfer function representationDevelop a block diagram representation of a controlled processUse Laplace transforms to solve ODE and process control problemsAware of the importance of safety in developing a controllerAcquired a problem solving approachIdentify control system stability and/or instabilityAble to fit data to a first order with dead time modelDetermine values of all controller