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2010 | 117 | 6 | 887-891
Article title

Effects of Variable Specific Heat Ratio on Performance οf an Endoreversible Otto Cycle

Authors
Content
Title variants
Languages of publication
EN
Abstracts
EN
Using finite-time thermodynamics, the relations between the work output and the compression ratio, between the thermal efficiency and the compression ratio for an endoreversible Otto cycle are derived with variable specific heat ratio of working fluid. The results show that if compression ratio is less than certain value, the increase of specific heat ratio makes the work output and the thermal efficiency higher; on the contrary, if compression ratio exceeds certain value, the increase of specific heat ratio makes the work output and the thermal efficiency less. The results also show that the maximum work output, the compression ratio at the maximum work output point, the working range of the cycle and the compression ratio at maximum thermal efficiency point decrease as the specific heat ratio increased. The results obtained from this work can be helpful in the thermodynamic modeling and in the evaluation of real Otto engines.
Keywords
EN
Year
Volume
117
Issue
6
Pages
887-891
Physical description
Dates
published
2010-06
received
2009-10-29
(unknown)
2010-03-11
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv117n601kz
Identifiers
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