[1]訾琨,杨秀奇.热机不可逆热力循环新析[J].南京理工大学学报(自然科学版),2007,(01):42-45.
 ZI Kun,YANG Xiu-qi.New Analysis of Irreversible Thermodynamic Cycle for Heat Engine[J].Journal of Nanjing University of Science and Technology,2007,(01):42-45.
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热机不可逆热力循环新析
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2007年01期
页码:
42-45
栏目:
出版日期:
2007-02-28

文章信息/Info

Title:
New Analysis of Irreversible Thermodynamic Cycle for Heat Engine
作者:
訾琨 1 杨秀奇 2
1. 宁波工程学院 汽车系, 浙江 宁波 315012; 2. 上海工程技术大学 汽车工程学院, 上海 200336
Author(s):
ZI Kun 1YANG Xiu-qi 2
1.Automotive Department,Niogbo College,Ningbo 315012,China2.Automotive Engineering College,Shanghai University of Engineering Science,Shanghai 200336,China
关键词:
热力循环 有限时间 热力学 不可逆因子 热机
Keywords:
thermodynam ic cycle finite time thermodynam ics irreversibility factors heat engines
分类号:
TK123
摘要:
在分析实际发动机工作过程的基础上,利用有限时间热力学理论方法,建立了一种新的不可逆热机热力循环模型。根据建立的模型推导出了热机功率、效率及其相互关系的解析表达式,并进行了计算和讨论。该模型包括了内可逆热力循环模型和考虑摩擦、热漏、内部耗散等不可逆因素时的热力循环模型,模型所反映的热机功率——效率特性变化规律与已经收集到的实际热机功率——效率特性曲线相吻合,与实际发动机工作过程相一致。结果表明:建立的模型比较简洁、全面地反映了热机实际工作过程,更具有普遍性。
Abstract:
Based on the analysis of the real engine. sworking process, a new model of irreversible thermal cycle for heat engine isproposed by using the finite time thermodynam ics. The therm al pow- er and efficiency of the heat engine and their relationship are induced, computed and discussed ac- cording to themode.l Themodels of the internal reversible thermodynam ic cycle and the irreversible thermodynam ic cycle taking consideration of the irreversible factors such as friction, heat leak and internal energy consum ing, etc. , are included. The changing regularity curves of power-efficiency property of heat engines obtained by themodel are consistent w ith those of the real heat engines in experiments andw ith real engine. sworking process. The results show that the proposedmodel can embody the realwork processing of heat engines and have more generality.

参考文献/References:

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[ 2] Chen L, W uC, Sun F. Influence of internalheat leak on the power vs efficiency characteristics of heat en- gines [ J]. Energy Conversion and M anagement, 1997, 38 ( 14): 1 501- 1 507.
[ 3] 严子浚. 有限时间热力学中不可逆卡诺热机 [ J]. 热能动力工程, 1994, 9( 6): 369- 373.
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[ 5] 訾琨, 兰旭光. 仅考虑热阻时发动机不可逆过程中熵的变 化 [ J]. 内 燃机 学 报, 2003, 21 ( 5): 313 - 316.
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[ 7] ZiKun, Lan Xuguang. Effect of thermodynam ic irre- versibility of internalcombustion engines on power ou-t put and thermal efficiency [A ]. Proceedings of the 2002 IBEC andATT conferences [ C]. Bal,i French: SAE Internationa,l 2002.
[ 8] 訾琨, 杨秀奇. 机械损失对柴油机热力循环特性的影响 [A]. 工程热力学与能源利用学术会议论文集 [C]. 上海: 中国工程热物理学会, 2003. 93- 100.
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备注/Memo

备注/Memo:
基金项目: 云南省自然科学基金 ( 2000E0002R)
作者简介: 訾琨 ( 1946- ), 男, 山东淄博人, 教授, 主要研究方向: 发动机工作过程热力学优化、能源利用, E-mail:zikun001@ 163. com。
更新日期/Last Update: 2007-02-28