|Table of Contents|

New Analysis of Irreversible Thermodynamic Cycle for Heat Engine

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2007年01期
Page:
42-45
Research Field:
Publishing date:
2007-02-28

Info

Title:
New Analysis of Irreversible Thermodynamic Cycle for Heat Engine
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
Keywords:
thermodynam ic cycle finite time thermodynam ics irreversibility factors heat engines
PACS:
TK123
DOI:
-
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.

References:

[ 1] BejanA. Theory heat transfer-irreversible power plant [ J]. Int JHeatM assT ransfer, 1988, 31 ( 6): 1 211 - 1 219.
[ 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.
[ 4] 陈林根, 孙丰瑞. 有限时间热力学研究的一些进展 [ J]. 海军工程大学学报, 2001, 13(6): 41- 46.
[ 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.
[ 6] 訾琨, 杨秀奇. 热机不可逆过程中不可逆因子的研究 [A]. 工程热力学与能源利用学术会议论文集 [C]. 西安: 中国工程热物理学会, 2004. 82- 87.
[ 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.
[ 9] Gordon JM. Generalized power versus efficiency char- acteristics of heat engines: The thermo electric genera- tor as an instructive illustration [ J]. Physics, 1991, 59 ( 6): 551- 555.

Memo

Memo:
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Last Update: 2007-02-28