New Orleans, Louisiana
June 26, 2016
June 26, 2016
August 28, 2016
978-0-692-68565-5
2153-5965
Division Experimentation & Lab-Oriented Studies: BYOE Session
Division Experimentation & Lab-Oriented Studies
Diversity
18
10.18260/p.26420
https://peer.asee.org/26420
834
Gerald Recktenwald is an Associate Professor in the Mechanical and Materials Engineering Department at Portland State University. His current research interests are in improving engineering education, and in the numerical simulation and measurement of fluid flow heat transfer in electronic equipment, energy efficient buildings, and other industrial applications.
We describe a low-cost, desktop-scale apparatus to demonstrate forced convection heat transfer. The device is designed to be useful at different levels of the undergraduate engineering curriculum. Using manual controls, students in an introductory heat transfer class can perform measurements to help them learn about convection and heat transfer coefficients. Both the power input and fan speed are controlled with PWM signals from an Arduino. Temperature measurements are performed with a thermocouple signal conditioning board that sends the temperature readings as a digital values to the Arduino. The device is simple to operate so that no detailed knowledge of data acquisition, electrical power control or fan speed control is required. Students in an instrumentation or controls course could use the USB interface to the Arduino to collect data and/or reprogram the Arduino to perform feedback control.
Six of the devices with varying sized heat sinks were used in a trial homework assignment in an undergraduate heat transfer course with 75 students in Spring 2015 and in another section of the same course with 57 students in Winter 2016. At this point, we have no quantitative assessment data.
Recktenwald, G. W. (2016, June), BYOE: A Desktop Apparatus for Demonstrating Convective Heat Transfer Paper presented at 2016 ASEE Annual Conference & Exposition, New Orleans, Louisiana. 10.18260/p.26420
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