ENME 447 Mechanical Engineering Experimentation Lab (2)
Catalog Description:
The laboratory will provide experiences with instrumentation and data acquisition required for measuring temperature, pressure, liquid and gas flows, rotational speed, strain, displacement, velocity, acceleration, and combustion products. Design project is included.
Course Objectives: At the completion of the course, students will have demonstrated the ability to
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Understand and apply knowledge gained in thermodynamics (ENGR 303 and ENME 304), fluid mechanics (ENGR 307 and lab 308), heat transfer (ENME 309) in the core and thermal science experiments and kinematics & dynamics of machinery (ENME 348) in the mechanical systems experiments,
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Perform 9 experiments that illustrate the above principles:
Transient Heat Transfer
Refrigeration Trainer
Heat Exchanger
Internal Combustion Engine – Mass and Energy Balances
Internal Combustion Engine – Combustion Products and Emission Control
Natural Gas Boiler Study – UTC Energy Plant
Simply Supported Beam in Bending-Static load and its Natural Frequency of Vibration
Linear Vibration (Spring-Mass-Damper)
Static and Dynamic Balancing of a Rotating Shaft
Kinematics of a Piston-Connecting Rod and Crankshaft and of a Valve (Follower) and Cam system in a Briggs and Stratton 3.5 hp engine,
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Learn and work with data acquisitions interface boards with various sensors and to learn programming of LabVIEW, and
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Perform a group design project consisting of upgrading an existing lab apparatus with data acquisition interfaces and a LabVIEW virtual instrument (VI) or to add data acquisition and write a LabVIEW VI for a new apparatus.
A typical design project is shown. The students developed a test program, designed the experimental systems needed, developed the LabVIEW program required to support data acquisition, analysis, and presentation, and reported their experimental findings through written and oral reports.
Hair Dryer Design and Testing
General Features
All senior level mechanical engineering program students are required to take the Mechanical Engineering Experimentation Lab. This two hour (one hour lecture plus one three hour lab weekly) lab is taken by students who have completed ENME 347 (2) (Mechanical Engineering Experimentation). In ENME 347 students are introduced to modern electronic instrumentation fundamentals, experimental uncertainly and error analysis, experimental statistics, and various forms of instrumentation used in measuring common mechanical engineering phenomena, like pressure, temperature, gas and liquid flow, stress-strain, displacement, velocity, acceleration, torque, rotational speed, force, relative humidity and dry bulb temperature, and detail exhaust gas components produced by internal combustion engines. The ENME 447 lab places special emphasis on developing experimental investigations and conducting experiments with written-oral communication of experimental findings. Ten labs that investigate transient heat transfer, heat exchangers, refrigeration systems, natural gas energy plant boiler analysis, internal combustion engine energy balances and exhaust gas analysis including catalytic converter operation, static and dynamics balancing of machines, dynamic beams, kinematics of cam-piston motion, and linear vibrations are conducted in ENME 447.
Advanced Features
Two of the upgraded ENME 447 lab systems (Linear Vibrations and Kinematics of Cam-Piston Motion) are “on-line” labs that are operated by our students and INTERNET users. These same labs can be operated by anyone having access to our web site: www.Reallabs.net. Students are also taught in the lab how to use LabVIEW software and modern electronic sensors in developing a data acquisition system for each of the design projects. The skills learned in ENME 347 and 447 enable the ME students to be productive in completing the mechanical capstone design projects in ENME 450 and Interdisciplinary Design (ENGR 485).
Design Project
A six-week design project is completed in the lab where the lab project is used as an incubator for developing enhancement packages for other labs throughout the BSME program. Several projects have been done to upgrade labs for ENGR 308 (Fluid Mechanics) and ENGR 248 (Mechanics of Materials). In addition, several ENME 447 design projects have upgraded older laboratory systems used for many years in the ME program area. The student initiated project is submitted to the College of Engineering and Computer Science for purchasing of new instrumentation and workstations required to complete the upgrade packages.
Financial Support
The ENME 347 course and ENME 447 lab have been developed over the past five years. Extensive financial support has been provided by Tennessee Valley Authority, MicroMotion, DuPont, Nissan, National Instruments, Analog Devices, University of Chattanooga Foundation, Benwood Foundation, UTC Center of Excellence for Computer Applications (CECA), and State of Tennessee.
All UTC Undergraduate Engineering Programs:
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Civil |
Electrical |
Environmental |
Industrial |
Mechanical
