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On The Power Cycles Working with The Ideal Quantum Gases-I: The Ericson Cycle
Istanbul Technical University, Nuclear Energy Institute.ORCID iD: 0000-0002-7431-5115
Istanbul Technical University, Nuclear Energy Institute.
1999 (English)In: Journal of Physics D: Applied Physics, ISSN 0022-3727, E-ISSN 1361-6463, Vol. 32, p. 664-670Article in journal (Refereed) Published
Abstract [en]

The Ericsson power cycles working with ideal Bose and Fermi monoatomic gasesare examined. They are conveniently called the Bose and Fermi cycles. Efficiencies of Bose and Fermi cycles are derived (etaB and etaF respectively). Variations of them with the temperature ratio (tau) and pressure ratio of the cycle are examined. A comparison of theefficiencies with each other and that of the classical Ericsson cycle (etaCl) is made. In thedegenerate gas state it is seen that etaB < etaF < etaCl, although etaB = etaF = etaCl in the classical gas state. In a Bose cycle, it is shown that there is an optimum value for the lowest temperature (TL) at which the efficiency reaches its maximum value for a given pressureratio. Furthermore, Bose–Einstein condensation restricts the value of TL of a Bose cycle for agiven value of PH . In a Fermi cycle, there is no an optimum value for TL. However, etaF goesto a finite value of less than unity when tau goes to zero.

Place, publisher, year, edition, pages
1999. Vol. 32, p. 664-670
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-380323OAI: oai:DiVA.org:uu-380323DiVA, id: diva2:1299246
Available from: 2019-03-26 Created: 2019-03-26 Last updated: 2019-03-26

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