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Fundamentals of Entransy and Entransy Dissipation Theory
2014The entransy is a new developed parameter that is effective in optimization of heat transfer. It can be used as an evaluation of the transport ability of heat. In this chapter, based on the energy conservation equation, the entransy balance equations for heat conduction and convective heat transfer are developed.
Junjie Gu, Zhongxue Gan
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Application of Entransy Theory in Thermal Storage System
2014There are many possible capsule and tank geometry types and arrangements. It is very helpful to assess the performance of capsule arrangements, shapes, and flow field configurations. For this purpose, a general tool will be needed to assess the heat transfer which takes place between the capsules and the HTF and evaluate how efficient the process is ...
Junjie Gu, Zhongxue Gan
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Constructal design for blast furnace wall based on the entransy theory
Applied Thermal Engineering, 2016Abstract Based on the entransy dissipation extremum principle for thermal insulation process, constructal design of blast furnace wall is performed in this paper. Optimal construct of the cooling stave in the furnace wall is obtained by using finite element method.
Xiong Liu +3 more
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Generalized constructal optimization of strip laminar cooling process based on entransy theory
Science China Technological Sciences, 2016A strip laminar cooling process is investigated in this paper. Entransy theory and generalized constructal optimization are introduced into the optimization. Total water flow amount (WFA) in the laminar cooling zone (LCZ) and complex function are taken as the constraint and optimization objective, respectively. The entransy dissipation (ED) and maximum
HuiJun Feng +4 more
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Entransy theory for the optimization of heat transfer – A review and update
International Journal of Heat and Mass Transfer, 2013Abstract Heat transfer optimization methods to effectively improve heat transfer performance is of great importance for energy conservation and pollution reduction. A recently developed heat transfer optimization method based on entransy theory and related peer-reviewed papers published between 2003 and 2010 are reviewed and updated in this paper to ...
Qun Chen, Xin-Gang Liang, Zeng-Yuan Guo
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The Application of Entransy Dissipation Theory in Optimization Design of Heat Exchanger
2010 14th International Heat Transfer Conference, Volume 4, 2010The heat conduction and fluid friction are two main detrimental irreversibilities in heat exchanger. According to the entransy dissipation theory, the entransy dissipation can be employed to quantify these two irreversibilities. In the present work, the optimization of heat exchanger design is investigated by applying the entransy dissipation theory ...
Jiangfeng Guo +3 more
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Science China Technological Sciences, 2016
A model of non-uniform height rectangular fin, in which the variation of base’s thickness and width are taken into account, is established in this paper. The dimensionless maximum thermal resistance (DMTR) and the dimensionless equivalent thermal resistance (DETR) defined based on the entransy dissipation rate (EDR) are taken as performance evaluation ...
AiBo Yang +4 more
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A model of non-uniform height rectangular fin, in which the variation of base’s thickness and width are taken into account, is established in this paper. The dimensionless maximum thermal resistance (DMTR) and the dimensionless equivalent thermal resistance (DETR) defined based on the entransy dissipation rate (EDR) are taken as performance evaluation ...
AiBo Yang +4 more
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A global optimization method for evaporative cooling systems based on the entransy theory
Energy, 2012Evaporative cooling technique, one of the most widely used methods, is essential to both energy conservation and environment protection. This contribution introduces a global optimization method for indirect evaporative cooling systems with coupled heat and mass transfer processes based on the entransy theory to improve their energy efficiency.
Fang Yuan, Qun Chen
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Analyses of an air conditioning system with entropy generation minimization and entransy theory
Chinese Physics B, 2016In this paper, based on the generalized heat transfer law, an air conditioning system is analyzed with the entropy generation minimization and the entransy theory. Taking the coefficient of performance (denoted as COP) and heat flow rate Q out which is released into the room as the optimization objectives, we discuss the applicabilities of the entropy ...
Yan-Qiu Wu, Li Cai, Hong-Juan Wu
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An integrated optimization for organic Rankine cycle based on entransy theory and thermodynamics
Energy, 2014Abstract The organic Rankine cycle has been one of the essential heat-work conversion technologies nowadays. Lots of effectual optimization methods are focused on the promotion of the system efficiency, which are mainly relied on engineering experience and numerical simulations rather than theoretical analysis.
Tailu Li, Wencheng Fu, Jialing Zhu
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