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Quantum Degeneracy Effect on the Work Output from A Stirling Cycle
Istanbul Technical University, Nuclear Energy Institute.
Istanbul Technical University, Nuclear Energy Institute.ORCID iD: 0000-0002-7431-5115
2001 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 90, no 6, p. 3086-3089Article in journal (Refereed) Published
Abstract [en]

The effect of quantum degeneracy on the work output from a Stirling cycle working at quantum degeneracy conditions (QDCs) is analyzed. Expressions for net work outputs of Stirling power cycles working with monatomic ideal Bose and Fermi gases are derived by using the quantum ideal gas equation of state. Ratios of net work outputs of Stirling cycles working with Bose and Fermi gases to the net work output of a classical Stirling cycle (RBW and RWF, respectively) are obtained. Variations of RBW and RFW with TH are examined for a given temperature ratio (τ=TL/TH) and a specific volume ratio (rν=νH/νL). At QDC, it is seen that RBW has a maximum value, which is greater than unity. On the other hand, there is no maximum or minimum point for RFW and RFW⩽1 for any values of TH. Consequently, the use of Bose gas as a working fluid in a Stirling cycle provides an advantage since it causes the net work output per cycle to increase by consuming more heat energy. This fact is seen to be in the opposite direction for a Stirling cycle working with Fermi gas.

Place, publisher, year, edition, pages
2001. Vol. 90, no 6, p. 3086-3089
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-380305OAI: oai:DiVA.org:uu-380305DiVA, id: diva2:1299113
Available from: 2019-03-26 Created: 2019-03-26 Last updated: 2019-03-26

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