Paper ID #45447A Course on Air Quality Monitoring and Control for Mechanical EngineeringSeniorsDr. Amir Ahmad Naqwi, University of St. Thomas The author has an adjunct faculty appointment at the Mechanical Engineering Department of the University of St. Thomas (MN), where he has been involved in the development and instruction of laboratory courses in fluid mechanics, thermodynamics, and heat transfer. He has a long-standing interest in air quality management and control. This course is a part of a package of electives including a course on water quality management and control offered by the Civil Engineering Department
Paper ID #42965Reflections of Undergraduate Engineering Students Completing a Cross-DisciplinaryRobotics Project with Preservice Teachers and Fifth Graders in an ElectromechanicalSystems CourseDr. Krishnanand Kaipa, Old Dominion University Dr. Krishnanand Kaipa is an Associate Professor and director of the Collaborative Robotics and Adaptive Machines (CRAM) Laboratory in the Department of Mechanical and Aerospace Engineering at the Old Dominion University. Dr. Kaipa received his BE (Hons.)Dr. Jennifer Jill Kidd, Old Dominion University Dr. Jennifer Kidd is a Master Lecturer in the Department of Teaching and Learning at Old
retention of low-income engineering transfer students.Kameryn DenaroDr. David A. Copp, University of California, Irvine David A. Copp received the B.S. degree in mechanical engineering from the University of Arizona and the M.S. and Ph.D. degrees in mechanical engineering from the University of California, Santa Barbara. He is currently an Assistant Professor of Teaching at the University of California, Irvine in the Department of Mechanical and Aerospace Engineering. Prior to joining UCI, he was a Senior Member of the Technical Staff at Sandia National Laboratories and an adjunct faculty member in Electrical and Computer Engineering at the University of New Mexico. His broad research interests include engineering
Paper ID #40154Comparing Success Rates in Thermodynamics: The Effect of TransferCredits in Prerequisite Calculus and Physics CoursesDr. Randall D. Manteufel, The University of Texas at San Antonio Dr. Randall Manteufel is an Associate Professor of Mechanical Engineering at The University of Texas at San Antonio (UTSA). He has won several teaching awards, including the 2012 University of Texas System Regent’s Outstanding Teaching Award.Dr. Amir Karimi P.E., The University of Texas at San Antonio Amir Karimi, University of Texas, San Antonio Amir Karimi is a Professor of Mechanical Engineering at The University of Texas at
better learning the topic (range of responses: A:121 Strongly disagree, B: Somewhat disagree, C: Neither disagree, nor agree, D: Somewhat agree, E:122 Strongly agree)123 Q2: I _______________ my partner during the quizzes (range of responses: A*: Mostly learned124 from, B*: Occasionally learned from, C*: Neither learned from nor taught to, D*: Sometimes125 learned from and sometimes taught to, E*: Occasionally taught to, F*: Mostly taught to)126 Q3: Teaching the area of my weakness in the exam helped me better understand the topic (range127 of responses: A-E)128 Q4: Working on an open-ended project helped me better understand the topic (range of129 responses: A-E) © American Society for
+ in outsystem, one diagram will solely show the storage term, which will be labeled as the storagediagram or SD, while the other diagram will depict the transfer, transport, and generation terms,which will be called the interaction diagram or ID. The conservation and accounting expressionsof the properties listed in Table 1 is tabulated in Table 2 for the rate form analysis and therespective SD-ID pair for each property is shown in Figure 3.Figure 3 Rate form storage and interaction diagrams for (a) mass, (b) linear and angular momen-tum, (c) energy, (d) entropy, and (e) exergy for a generic system Table 3 Conservation and accounting of properties for closed system (finite-time form) Property Final − Initial
the arm.The end stops are switches placed such that they are contacted by “end stop contacts” at the setlimits, Figure 4: (a) (b) Figure 4 (a) End stop; (b) Switch stop-motor.End Stops In the Arduino code these are referred to as the variables “upper” and “lower”. Reference thecode for more information regarding how these end stops affect motor control, Figure 5: Upper end stop Lower end stop Figure 5 Lower and upper end stops.Motor, worm gear and electrical componentsSeveral critical components were sourced
computational tools in engineering education. This balanced approach ensuresthat students develop both theoretical understanding and practical computational skills necessaryfor modern engineering practice.1.3 Plant Technology Example ProblemA thermodynamic analysis of the transfer of liquids by pressurized gas plant technology is to beperformed. Two tanks A and B (see schematic) containing the refrigerant R-134a are connectedby a valve. The fluid in tank A is initially saturated vapor at 80 oF with a volume of 3.2 ft3, and inthe insulated tank B it is at -40 oF, quality of 0.01 with a volume of 2.5 ft3. The valve is openedslightly, allowing the fluid to flow from A to B. A pressure regulator connected to tank B allowsliquid to flow out when the
betweenthem. This interactive experience reinforced theoretical concepts learned in class, deepened theirunderstanding of the material, and offered a more in-depth learning experience compared totraditional methods, with the VR environment’s fidelity accurately representing the crystalstructures.Figure 1 illustrates a sample of a simple cubic and face-centered cubic structure, which studentscan typically observe only in 2D on paper. With the use of virtual reality (VR), students are ableto view these structures in three dimensions, enabling them to rotate and examine the atomicarrangement from various perspectives.Figure 1. (a) Simple cubic structure (b) face centered cubic structurePhase 3: AssessmentA standardized set of assessment questions has
this because in addition to becoming taught, the plasticwill also go clear as it reaches GTT. (a) (b Figure 2.6. HDPE from a milk jug (a) before and (b) after reaching GTT(Note: be careful not to overheat the plastic, as it can cause the plastic to become too thin orburn a hole through the sheet, making it impossible to form with. This may take some practiceand a few tries to get right.)Once the plastic has reached GTT, turn on your vacuum and carefully pick up the wooden clampwith the handles. Rotate the wooden clamp 90 degrees and firmly lower it over the buck andonto vacuum table, using the vertical uprights as a guide.(NOTE: if the frame is too hot
, and internal pin forces required to calculate the stresses in Phase II. • Phase 2 - Stress Analysis. The stress analysis is carried out using the forces from the equilibrium analysis in Phase I. The stress analysis is limited to pin shear stress, member pull-out shear stress, connection bearing stress, and normal stress in axially loaded members. The pin connection is considered a tight fit with uniform bearing stress and a loose fit with non-uniform bearing stress.We will now summarize Phases I and II, and the detailed solution process can be found inAppendices A and B, respectively.Qualitative AssessmentA qualitative assessment was carried out by using student surveys. We carried out a qualitativeassessment
experimental years.3.2 The Relations of the First-year Students’ Math and Science Preparation and theirPerformance in Statics.The in-depth analysis is conducted to investigate the factors affecting the first-year students’learning in the introductory mechanical engineering course and their relations with theirperformances beyond the course. We have focused on the 62 first-year mechanical engineeringstudents who enrolled and passed MECH 101 in the two experimental years. Based on thestudents’ paths related to Statics, we can group the 62 students into the following four categories: • Group A: Passing Statics with a C or better (n = 35) • Group B: Receiving a C- or DFW in Statics, resulting in a retake (n = 12) • Group C: Planning to take
inches Figure 4: CFD simulation results using SolidWorks flow for the design 2FabricationThe fabrication process for the designs involved dissolving ABS inside PDMS. ABS is amaterial that dissolves well in acetone, while PDMS is inert to the effects of it. The Tesla valvedevice was printed using a 3D printer with ABS as the filament. Approximately 0.25 in PDMSwas cast as a base layer so the ABS device would not sit on the bottom. The PDMS was mixed ata 10:1 ratio for parts A and B of the solution. The 3D-printed part was then suspended into theABS.After the part was suspended in the PDMS, it went into a vacuum chamber. This vacuumchamber, shown in Figure 5(a), created a vacuum for 5 minutes to remove any trapped gassesfrom the PDMS
, either 2D or 3D, for which a dragcoefficient is published and attempt to match that value using the CFD simulation code of theirchoice. They were also required to explore the effect of grid refinement on their results, and to“do something else” and discuss what they think the results mean. The assignment sheet isincluded in its entirety in Appendix B. There were additional oral instructions and some CFDdemonstrations given during class to better express the expectations. Several aspects of thisassignment were purposefully left vague so the students had to make choices and be somewhatcreative in how they approached it. Drag coefficient diagrams and tables excerpts from severaltextbooks were provided for the students to choose from [6]–[9], and
(22) studentsparticipated in the initial baseline survey. The intervention plans designed for buildingenvironmental behavior were implemented in Spring 2022. In the post and pre-surveys of theintervention semester, 25 and 22 students responded from a senior-level mechanical engineeringcourse.A pool of survey questions was developed to understand the following: a) Knowledge of sustainability, b) Attitudes and intended behavior towards sustainability, c) Willingness to pursue a sustainability career, and d) Perceived preparedness for a sustainability career. The essential goal of the intervention is to understand the role that the instructional approachplays in changing undergraduate students' knowledge, attitudes
course was developed based onthe seven different process categories of AM. There are three parts to this course: (a) introductionto seven different AM process categories (b) generative design for AM, and (c) design-manufacturing-testing project. Early in the semester, students were introduced to materialextrusion AM and the generative design module of Fusion 360 CAD software. In parallel to theregular in-class meeting for seven different AM processes, students were tasked with self-pacedgenerative design for AM-based course modules. In the mid-semester, a comprehensive guidelineand rubric of design, manufacturing, and testing (DMT) based projects was provided to thestudents. Due to the availability of low-cost material extrusion 3D printers
. (a) The RRRR-RRRP pick and place mechanism used throughout the course. (b) The gripper used for pick and place tasks. Figure 2. (a) The mechanism shown with a block picked up off the table in the four-bar linkage (RRRR) state. (b) The mechanism shown placing the block on the table in the crank-slider state (RRRP).for pick and place operations. For example, a block can be pick up in one location and movedseamlessly to another location. The advantage of this mechanism is that it can perform a complexmotion profile with a single DC motor. This reduces the weight of the mechanism, reduces thepower consumption, and lowers its cost. These factors are highly desirable in space applications,and therefore this mechanism is considered a space
opportunity topractice new concepts and expand their problem-solving capabilities in a low-stakesenvironment. Unfortunately, the importance of homework is often not impressed upon incomingfreshman as 56.7% of them report spending less than six hours per week working on homeworkduring their last year of high school, a behavior of which was sufficient since 97.5% had anaverage grade of an A or B [1]. The disconnect of earning good grades while not needing to putin meaningful work towards achieving them is a learned behavior which can harm students inhigher education, and it’s a difficult behavior to correct. The problem is exacerbated sinceassigned grades in high school are poor indicators of content knowledge because grades areawarded not just for
resistance relations are bases on one-dimensional steady-state heat conduction in amedium involving no heat generation. For a plane wall, the temperature profile is linear andthermal resistance is expresses as Rth = L/k, where L is the wall thickness, and k is the thermalconductivity of the wall. The following problem has been used to help clarify these concepts. Consider a plane wall, 30 cm thick, having a thermal conductivity, k = 20 W/m.oC. The following expression is given for the temperature profile in the wall. T (x) = 225 -2500 x2 +20 where, T is in measured in oC, and x in m. Considering a steady state process with uniform volumetric heat generation in the wall, determine; (a) The temperatures at x = 0 and x=L, in oC. (b) The
disciplinary cultures from the student perspective,” in 2018 ASEE Annual Conference & Exposition, 2018. [5] B. Batson, “’Other’reasons to invert a class,” in 2016 ASEE Annual Conference & Exposition, 2016. [6] ——, “Introducing metacognition to sophomores and juniors and its effect on academic performance,” in 2018 ASEE Annual Conference & Exposition, 2018. [7] M. A. McVey, C. W. Luchies, and A. J. Villicana, “Impact of high-performing teams on student learning,” in 2017 ASEE Annual Conference & Exposition, 2017. [8] R. D. Manteufel, “Electronic technology used in engineering thermodynamics,” in 2006 GSW, 2006. [9] Q. Dunsworth and Y. Wu, “Effective review of prerequisites: Using videos to flip the reviewing process in a
of training: The case of structured troubleshooting. Human factors. 2000;42(1):75-86.[4] Miles, M. B., Huberman, A. M., Saldaña, J, Qualitative Data Analysis: A methods sourcebook. SAGE, 2020.[5] K. E. Lewis, "An algorithm for integrated subsystem embodiment and system synthesis," Georgia Institute of Technology, 1996.[6] L.L. Hsu, M.Y. Chang, & S.I. Hsieh, “Mind mapping: a new tool for enhancing student learning strategy”, Hu li za zhi The journal of nursing, 55(2), 76–80, 2008.[7] W. B. Thompson, P. E. Johnson, and J. B. Moen, "Recognition-Based Diagnostic Reasoning," in International Joint Conference on Artificial Intelligence, 1983. Pp. 236- 238.[8] A. Penter, "Practical Gear Fault Diagnosis
methodology: Internal and external validity,” TLI, vol. 6, no. 2, pp. 115–126, Sep. 2018, doi: 10.20343/teachlearninqu.6.2.9.[9] N. Haigh and A. J. Withell, “The Place of Research Paradigms in SoTL Practice: An Inquiry,” TLI, vol. 8, no. 2, pp. 17–31, Oct. 2020, doi: 10.20343/teachlearninqu.8.2.3.[10] J. Brennan, T. Fernandez, and J. Tranquillo, “Professionalization and the forgotten system: Observed practices and perceptions at the intersection of informal and formal faculty development,” To Improve Acad., vol. 41, no. 2, Nov. 2022, doi: 10.3998/tia.440.[11] L. S. Robins, C. B. White, and J. C. Fantone, “The Difficulty of Sustaining Curricular Reforms: A Study of ‘Drift’ at One School,” Acad. Med., vol. 75, no. 8
, she felt the project was properly planned, and resulted in a textbook that can be extremelyuseful for students. She believes that incorporating student examples gives the students a chanceto develop and solve their own problems, which helps in the learning process. The opportunity tohave their work included in a textbook also incentivizes the students to want to participate and dotheir best work for the submissions. She recognizes that there is a range in the complexity andquality of submitted problems, but they are all useful to convey content. She encourages professorsto incorporate OERs and self-generated problems as it is financially economical for students andbeneficial for their learning.Student Researcher BStudent researcher B
airfoil to illustrate the general procedures for a CFDHT calculation: (a) pre-processing, (b) CFDHT simulation, and (c) post-processing. © American Society for Engineering Education, 2023 2023 ASEE Annual ConferenceFig. 2. The FDM computing assignment #1: 1D steady-state heat conduction with heat sources. Fig. 3. The FDM computing assignment #2: 1D transient heat conduction. © American Society for Engineering Education, 2023 2023 ASEE Annual ConferenceFig. 4. The FDM computing assignment #3: 2D steady-state potential flow. © American Society for Engineering Education, 2023 2023 ASEE Annual Conference
learners. These means, presented in the following sequence, were: 1. Study of theory of machines including kinematics and dynamics 2. Observation of working mechanisms and computer animations 3. Reverse engineering of mechanisms found in animated toys 4. Assembly and successful operation of commercially available automata kits (Figures 3 a and b) 5. An open-ended design project where a group of students had to design and build automata (Figures 4 a, b, and c). During the course, students learned the theory governing mechanisms and their uses in the real-world. The students followed a practical path to learn about joint, element, and mechanism types as well as functions of joints and
. Additionally, a self-reflection form(questions in Appendix B) was written and distributed to the students through a Google form. Studentsself-evaluated their competencies regarding sustainability problem framing, creativity, collaboration,environmental/social justice awareness along with their suggestions to improve the case-writingexperience in following courses. From the pool of respondents, several students volunteered for aninterview to further expand on their experience writing the case-study.Interviews (questions in Appendix C) were conducted by two members of the research team who aredoctoral students studying this learning intervention. Each interview lasted 45-60 minutes and wasconducted with six evaluation respondents and the course
expectations of the design review (i.e., what makes it useful vsunhelpful) that was derived from Scott Hamilton’s study [2]. Each design review is a small,graded assignment (10 points), so that students put in effort. Not all learning activities need tobe graded, but students are motivated to engage in it if it is incorporated into their final grade [5].A second page was added to the design review form to incorporate reflection practices asdescribed in Part I (Page 2, Appendix B) [8]. This has been adapted from a peer reviewworkshop evaluation form used for team-based project reporting that has been shown to work inan industrial and systems engineering course [3]. The second page ensures students have readtheir feedback and internalized it, thereby
] Kane, M., and Trochim, W. M. K., 2007, Concept Mapping for Planning and Evaluation, Sage Publications, Inc, Thousand Oaks, CA, US.[13] Weber, P., Dillon, H., and Lee, S.-J., 2022, “Benefits of Statics Concept Mapping in Career Cognition.”[14] Fang, N., 2012, “Enhancing Students’ Understanding of Dynamics Concepts Through a New 9 Concept Mapping Approach: Tree of Dynamics,” p. 25.574.1-25.574.13.[15] Moore, J. P., Pierce, R. S., and Williams, C. B., 2012, “Towards an ‘Adaptive Concept Map’: Creating an Expert-Generated Concept Map of an Engineering Statics Curriculum,” p. 25.1365.1-25.1365.13.[16] Moore, J. P
model tested (a Corvette C8). Even though the specific value was notutilized for comparison, the drag coefficients are pretty close but not within the ideal 5% range. In the future, the force balance system will be utilized to study the deflections andbending moment of a stem and compared to both the analytical and fluid-structure interactionanalysis. Also, the results of the force balance system will be compared to that of the dataacquisition system at different speeds.References[1] R. Bishop, W. Fisher, A. Doom, E. Hollingsworth, B. Mazzoni. and M. Chidurala, “Wind Tunnel Data Acquisition System,” in IMECE 2021, Virtual Conference, November 1-5, 2021.[2] A. Doom, E. Hollingsworth, R. Bishop, W. Fisher, B. Mazzoni and M
(CO) - PROGRAM OUTCOME (PO) MATRIX Table II PROGRAM OUTCOME (PO) MAPPING TO INTERNATIONAL ENGINEERING ALLIANCE (IEA) - WASHINGTON ACCORD GRADUATE ATTRIBUTE (WA) IEA – WA Program Outcome Graduate Attribute PO Statement Sub-Attribute PO4 Conduct investigations, interpret a) Use research methods for WA4 data and provide conclusions in collecting data. investigating complex problems b) Analyze and interpret