Results 1 to 10 of about 488 (148)
Progress in entransy theory and its applications [PDF]
Science Bulletin, 2012 The entransy and entransy dissipation extremum principle proposed have opened up a new direction for the heat transfer optimization. The emergence and development of entransy theory are reviewed. Entransy theory and its applications are summarized from several aspects, such as heat conduction, heat convective, heat radiation, heat exchanger design and ...
Lingen Chen
exaly +5 more sources
Entransy - a Novel Theory in Heat Transfer Analysis and Optimization [PDF]
, 2011 It has been estimated that, of all the worldwide energy utilization, more than 80% involves the heat transfer process, and the thermal engineering has for a long time recognized the huge potential for conserving energy and decreasing CO2 release so as to reduce the global warming effect through heat transfer efficiency techniques (Bergles, 1988, 1997 ...
Qun Chen, Xingang Liang, Zeng‐Yuan Guo
core +6 more sources
Study on Energy Saving of Epichlorohydrin Unit Based on Entransy Theory
Chemical Engineering Transactions, 2020 The mathematical models for calculating the energy utilization efficiency of heat exchanger networks (HENs) based on entransy analysis method was built. The energy utilization efficiency of HENs for epichlorohydrin unit were calculated by exergy analysis
Li Xia +6 more
doaj +3 more sources
Entransy Dissipation Theory and Its Application in Heat Transfer [PDF]
, 2011 In this chapter, our recent work on the entransy dissipation theory and its application in heat convection and the heat exchanger design is reviewed. In that work, the thermodynamic basis of the entransy dissipation theory is established. It is shown that the entransy is a state variable and the second law of thermodynamics can be described by the ...
Mingtian Xu
core +6 more sources
Application of entransy theory in the heat transfer optimization of flat-plate solar collectors [PDF]
Chinese Science Bulletin, 2012 The flat-plate solar collector is an important component in solar-thermal systems, and its heat transfer optimization is of great significance in terms of the efficiency of energy utilization. However, most existing flat-plate collectors adopt metallic absorber plates with uniform thickness, which often works against energy conservation. In this paper,
Qin-Yi Li, Qun Chen
core +7 more sources
Constructal Equivalent Thermal Resistance Minimization for Tau-Shaped Fin [PDF]
Entropy, 2020 With the aid of constructal theory and entransy theory, a Tau-shaped fin (TAUSF) is investigated in this paper, and the widths of the bend end and elemental fins are assumed to be different.
Shuhuan Wei +3 more
doaj +2 more sources
Constructal Optimizations for Heat and Mass Transfers Based on the Entransy Dissipation Extremum Principle, Performed at the Naval University of Engineering; a Review [PDF]
Entropy, 2018 Combining entransy theory with constructal theory, this mini-review paper summarizes the constructal optimization work of heat conduction, convective heat transfer, and mass transfer problems during the authors’ working time in the Naval University of ...
Lingen Chen, Qinghua Xiao, Huijun Feng
doaj +2 more sources
Irreversibility and Action of the Heat Conduction Process [PDF]
Entropy, 2018 Irreversibility (that is, the “one-sidedness” of time) of a physical process can be characterized by using Lyapunov functions in the modern theory of stability.
Yu-Chao Hua, Tiao Zhao, Zeng-Yuan Guo
doaj +2 more sources
Geometry Optimization of Self-Similar Transport Network [PDF]
Mathematical Problems in Engineering, Volume 2011, Issue 1, 2011., 2011 We optimize geometries of various self-similar transport networks using a three-step strategy based on the entransy theory. Using this optimization method, we obtained optimal relationships of geometric parameters of T-shape networks for fluid flow, heat
M. Wang, X. D. Shan, Z. Y. Guo
core +3 more sources
Discussion on the application of entransy theory to heat-work conversion processes
Acta Physica Sinica, 2014 Applications and limitations of the entransy theory for heat-work conversion processes are analyzed and discussed in this paper. Our analyses for the Carnot cycle show that the system entransy of the Carnot cycle is in balance, but the relationship, dG=T2dS, does not exsit between the concepts of entransy and entropy.
XueTao Cheng, Xingang Liang
openalex +2 more sources