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compared two optimization principles for convective heat transfer, the minimum entropy generation principle and the entransy … dissipation focusing on the heat–work conversion. The entransy dissipation extremum principle however, originally for pure heat … the highest heat–work conversion while the entransy dissipation extremum principle yields the maximum convective heat …
Persistent link: https://www.econbiz.de/10010811085
number, the entransy dissipation, the entransy dissipation number and the entransy-dissipation-based (EDB) thermal resistance …. The results indicate that the effectiveness only increases with decreasing revised entropy generation number, entransy … heat transfer rate increases with decreasing thermal resistance, increasing entropy generation and increasing entransy …
Persistent link: https://www.econbiz.de/10010811519
Persistent link: https://www.econbiz.de/10012162600
Generally speaking, an ecosystem is seen as a complex set, it is composed by different biotic and abiotic parts. Naturally, each part has specifics functions related with mass and energy, those functions have influence between the parts directly and indirectly, and these functions are subjected...
Persistent link: https://www.econbiz.de/10011054813
Modern air crafts and aviation industry are dominant consumers of fuel. The application of exergy analysis is powerful tool in the design and performance judgment of these systems. In this study, the local entropy generated and exergy destroyed in the intake and fan of a turbofan engine are...
Persistent link: https://www.econbiz.de/10011055991
Based on the entransy dissipation theory, the multi-parameter optimization design of recuperator is conducted in an … as entransy dissipation number decreases. This is done only by optimizing the combination of design parameters of … recuperator taking entransy dissipation number as the objective function under certain constraint conditions, and the cost is no …
Persistent link: https://www.econbiz.de/10010808310
In the present work, the entransy and entransy dissipation are defined from the thermodynamic point of view. It is … shown that the entransy is a state variable and can be employed to describe the second law of thermodynamics. For heat … conduction, a principle of minimum entransy dissipation is established based on the second law of thermodynamics in terms of …
Persistent link: https://www.econbiz.de/10010808543
, through introducing the entransy theory and thermodynamic analysis for compressor and expansion valve. The integration of heat …
Persistent link: https://www.econbiz.de/10010808653
established from the Fourier law. Furthermore based on the thermodynamics in terms of entransy a more general functional is …
Persistent link: https://www.econbiz.de/10010809304
coupled heat and mass transfer processes based on the entransy theory to improve their energy efficiency. First, we classify … the mixing process of waters in different branches, where the irreversibility is evaluated by the entransy dissipation …. Then through the total system entransy dissipation, we establish the theoretical relationship of the user demands with both …
Persistent link: https://www.econbiz.de/10010810338