4.8 Article

Finite-time thermodynamic modelling and analysis of an irreversible Otto-cycle

期刊

APPLIED ENERGY
卷 85, 期 7, 页码 618-624

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2007.09.008

关键词

finite-time thermodynamics; Otto-cycles; heat resistance; friction; internal irreversibility; performance optimization

向作者/读者索取更多资源

The performance of an air standard Otto-cycle is analyzed using finite-time thermodynamics. In the irreversible cycle model. the non-linear relation between the specific heat of the working fluid and its temperature, the friction loss computed according to the mean velocity of the piston, the internal irreversibility described by using the compression and expansion efficiencies, and the heat-transfer loss are considered. The relations between the power output and the compression ratio, between the thermal efficiency and the compression ratio, as well as the optimal relation between the power output and the efficiency of the cycle are indicated by numerical examples. Moreover, the effects of internal irreversibility, heat-transfer loss and friction loss on the cycle performance are analyzed. The results obtained in this paper may provide guidance for the design of practical internal-combustion engines. (c) 2007 Elsevier Ltd. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.8
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据