NDLI: Entransy analysis of open thermodynamic systems

Content Provider	Springer Nature Link
Author	Cheng, XueTao Wang, WenHua Liang, XinGang
Copyright Year	2012
Abstract	The concept of entransy developed in recent years can describe the heat transport ability. This paper extends this concept to the open thermodynamic system and defines the concept of enthalpy entransy. The entransy balance equation of steady open thermodynamic systems, as well as the concept of entransy loss, is developed. The entransy balance equation is applied to analyzing and discussing the air standard cycle. It is found that the entransy loss rate can describe the change in net power output from the cycle but the entropy generation rate cannot when the heat absorbed by the working medium is from the combustion reaction of the gas fuel. When the working medium is heated by a high temperature stream, both the maximum entransy loss rate and the minimum entropy generation rate correspond to the maximum net power output from the cycle. Hence, the concept of entransy loss is an appropriate figure of merit that describes the cycle performance.
Starting Page	2934
Ending Page	2940
Page Count	7
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	57
Issue Number	22
e-ISSN	18619541
Language	English
Publisher	SP Science China Press
Publisher Date	2012-08-09
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	entransy loss enthalpy entransy entransy balance equation open system air standard cycle Earth Sciences Engineering Science Chemistry/Food Science Life Sciences Physics
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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