Table of Contents
Journal of Thermodynamics
Volume 2014, Article ID 217187, 7 pages
Research Article

Pedagogical Visualization of a Nonideal Carnot Engine

Solid State Physics, Lund University, P.O. Box 118, 221 00 Lund, Sweden

Received 15 April 2014; Revised 2 July 2014; Accepted 2 July 2014; Published 21 July 2014

Academic Editor: Shripad T. Revankar

Copyright © 2014 Jonas Johansson. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We have implemented a visualization tool for the demonstration of a nonideal Carnot engine, operating at finite time. The cycle time can be varied using a slide bar and the pressure-volume, temperature-entropy, power-time, and efficiency-time diagrams change interactively and are shown on one screen. We have evaluated the visualization tool among engineering students at university level during an introductory course on thermodynamics and we review and discuss the outcome of the evaluation.