Results 1 to 10 of about 104 (90)
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
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
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
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, Chen Lingen
exaly +2 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 +2 more sources
Research on Performance Optimization of Gravity Heat Pipe for Mine Return Air
Energies, 2022 The mine return air flow has the characteristics of basically constant temperature and humidity all year round and is a high-quality waste heat resource. Its direct discharge not only wastes energy but also causes environment pollution.
Yu Zhai, Xu Zhao, Zhifeng Dong
doaj +1 more source
International Journal of Energy Research, Volume 2023, Issue 1, 2023., 2023 The current investigation analyses the convective heat transfer performance, entropy generation, and entransy evaluation of swirl flows generated by distorted radial fins (DRF). As swirl flows and various vortical structures induce large temperature gradients, second law and entransy analyses are necessary to thoroughly evaluate their true ...
M. L. G. Ho +4 more
wiley +1 more source
Energy Science &Engineering, Volume 10, Issue 12, Page 4566-4579, December 2022., 2022 This paper builds the heat current model of a waste heat recovery system of single pressure Rankine cycle. Applying the law of Kirchhoff builds a mathematical model of a system with no intermediate nodes Temperatures. Combining the genetic algorithm establishes the optimization model with the objective of maximum output power of turbine and obtains the
Zhi‐guo Wei +3 more
wiley +1 more source
Mathematics, 2023 The uniformity principle of temperature difference fields (TDFs) is applied in this study to improve the constructal optimization for “volume-point” heat conduction based on entransy dissipation rate (EDR) minimization without the premise of an optimal ...
Shuhuan Wei, Dini Wang
doaj +1 more source
Development and heat transfer analysis of thermoelectric self‐powered fuel‐fired residential boiler
Energy Science &Engineering, Volume 10, Issue 9, Page 3344-3357, September 2022., 2022 Integration of thermoelectric generator with a fuel‐fired boiler. Electricity generated by thermoelectric power generator is sufficient to power auxiliary components of the boiler. Modeling analysis and prototype testing are coupled to conduct the research.
Heng Xiao +4 more
wiley +1 more source