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Design of a Low-Cost PID Level Control Experiment to Teach Chemical Engineering Concepts in an Introductory Engineering Laboratory

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Conference

2022 ASEE - North Central Section Conference

Location

Pittsburgh, Pennsylvania

Publication Date

March 18, 2022

Start Date

March 18, 2022

End Date

April 4, 2022

Tagged Topic

Diversity

Page Count

24

DOI

10.18260/1-2--39236

Permanent URL

https://peer.asee.org/39236

Download Count

1319

Paper Authors

biography

Alexia Leonard The Ohio State University

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Alexia Leonard is a PhD candidate in the Engineering Education program at The Ohio State University. She is currently working as a Lead Graduate Teaching Associate for the First Year Engineering program within the Department of Engineering Education and as a Graduate Research Associate for the Beliefs in Engineering Research Group (BERG) led by Dr. Emily Dringenberg.

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biography

Andrew Maxson The Ohio State University

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Andrew Maxson is an assistant professor of practice in chemical engineering at The Ohio State University where he teaches Chemical Engineering Unit Operations. He earned his B.S. in chemical engineering from Rose-Hulman Institute of Technology and his M.S. and Ph.D. in chemical engineering at Ohio State. Having worked as a manufacturing process engineer for ten years, his focus is on optimizing the process of teaching, as well as hands-on, practical engineering concepts relevant to chemical engineers entering industry.

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Abstract

Exposure to chemical engineering is a critical factor in students’ decision to major in chemical engineering. However, many underrepresented minority students lack exposure to chemical engineering outside of formal education. While there are resources regarding labs that could be implemented in high-school and introductory college level courses, few appear to focus on the concept of process control at a high-school skill level or above, and many others are inhibitory for K-12 and first year engineering programs to utilize due to the cost of implementation. To better introduce students to the nature of chemical engineering work within their final high school years or during the first year of their collegiate career, I have developed an affordable PID controller laboratory that introduces students to the process control nature of chemical engineering. The PID controller laboratory utilizes an inexpensive microcontroller and supporting components to introduce students to PID controllers and the use of microcontrollers. Students are expected to run the system at several different tuning parameters to gain an understanding of how the system operates over time. Further, in classrooms with multiple setups, different volume containers could be used to demonstrate the effect that the system has on the process stability. The final price point of this lab sits under 150 dollars and with modifications it can be operated for under 100 dollars. In conclusion, this lab offers an affordable option to instructors looking to introduce the fundamentals of process control with their students.

Leonard, A., & Maxson, A. (2022, March), Design of a Low-Cost PID Level Control Experiment to Teach Chemical Engineering Concepts in an Introductory Engineering Laboratory Paper presented at 2022 ASEE - North Central Section Conference, Pittsburgh, Pennsylvania. 10.18260/1-2--39236

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