ERIC Number: EJ1024957
Record Type: Journal
Publication Date: 2013-Oct
Abstractor: As Provided
Variations on the Zilch Cycle
Binder, P.-M.; Tanoue, C. K. S.
Physics Teacher, v51 n7 p434-436 Oct 2013
Thermo dynamic cycles in introductory physics courses are usually made up from a small number of permutations of isothermal, adiabatic, and constant-pressure and volume quasistatic strokes, with the working fluid usually being an ideal gas. Among them we find the Carnot, Stirling, Otto, Diesel, and Joule-Brayton cycles; in more advanced courses, steam cycles and refrigerators based on real working fluids are often introduced. Any additional cycles made up from the same simple strokes, and any extended analysis of known cycles, are welcome additions to the teaching repertory, as they provide more opportunities for practice and discussion. Our purpose in this note is to extend the analysis of the zilch cycle, introduced in ref. 1, by presenting its "TS" diagram and by proposing several variations that do not contain adiabatic strokes, thus allowing a simpler mathematical treatment. As a bonus, we also provide results that make it possible to represent practically any elementary ideal-gas cycle in a "TS" diagram.
Descriptors: Science Instruction, Introductory Courses, Physics, Thermodynamics, Scientific Principles, Mathematics, Engines
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: email@example.com; Web site: http://scitation.aip.org/tpt
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Authoring Institution: N/A