On the Work by Electricity in the First and Second Laws of Thermodynamics
- Conference
- Location
-
Vancouver, BC
- Publication Date
-
June 26, 2011
- Start Date
-
June 26, 2011
- End Date
-
June 29, 2011
- ISSN
-
2153-5965
- Conference Session
- Tagged Division
-
Mechanical Engineering
- Page Count
-
14
- Page Numbers
-
22.1120.1 - 22.1120.14
- DOI
-
10.18260/1-2--18865
- Permanent URL
-
https://peer.asee.org/18865
- Download Count
-
732
Paper Authors
Hyun W. Kim Youngstown State University
Hyun W. Kim, Ph.D., P.E.
Hyun W. Kim is a professor of mechanical engineering and the coordinator of the mechanical enginneering graduate program at Youngstown State University. He has been teaching and developing courses in the fluid thermal area and conducting research in advanced thermodynamics, advanced fluid mechanics, and computational fluid mechanics and heat transfer . He is a Professional Mechanical Engineer in Ohio and is currently conducting applied research in fluid power control and computational fluid dynamics with local industries. Dr. Kim received a B.S.E. degree from Seoul National University, a M.S.E. from the University of Michigan, and a Ph.D. from the Univ. of Toledo.
Yogendra M. Panta Youngstown State University
Dr. Yogendra Panta graduated from University of Nevada, Las Vegas with Ph.D. in Mechanical Engineering in 2008. He is an active member of several engineering societies including ASEE, ASME and APS. Since then, he is actively involved in research areas of Fluid Dynamics, Thermodynamics, and Microfluidics Lab on Chip applications. He has published a book, several articles and presented at several conferences. Dr. Panta has recently developed a new course on "Computational Fluid Dynamics" in the College of STEM at YSU. His research group works on CFD modeling and simulation, microfluidics lab on chip and biofluid dynamics. He is currently serving as an Assistant Professor of Mechanical Engineering at Youngstown State University.
Abstract
On the work by electricity in the first and second laws of thermodynamicsABSTRACTIn the first law of thermodynamics analysis, energy transfer by electrical heating elements placedin a system or control volume has been traditionally treated as the electrical work rather than heattransfer from the surroundings. This treatment has been an accepted norm since there are not anyproblems or violations in dealing with this form of energy transfer as work in the first-lawanalysis. However, this practice presents a significant problem pertaining to the reversible workand the irreversibility in the second-law analysis. In this study, a number of exercise problemscontaining electrical heating have been selected from current thermodynamics texts andexamined. They were solved by the traditional way for the second-law analysis which producedsome questionable results.In this paper, case studies will be presented to show these contradictions. The apparentdiscrepancies in the relationship of actual work, reversible work, and the irreversibility are due toa fact that work does not have direct effect on entropy and entropy generation. Based on thestudy, a change seems warranted for the first-law analysis relating to the electrical work.
Kim, H. W., & Panta, Y. M. (2011, June), On the Work by Electricity in the First and Second Laws of Thermodynamics Paper presented at 2011 ASEE Annual Conference & Exposition, Vancouver, BC. 10.18260/1-2--18865
ASEE holds the copyright on this document. It may be read by the public free of charge. Authors may archive their work on personal websites or in institutional repositories with the following citation: © 2011 American Society for Engineering Education. Other scholars may excerpt or quote from these materials with the same citation. When excerpting or quoting from Conference Proceedings, authors should, in addition to noting the ASEE copyright, list all the original authors and their institutions and name the host city of the conference. - Last updated April 1, 2015