A new perspective of constructal networks cooling a finite-size volume generating heat
| Autor: | Daniel Bougeard, Maroun Nemer, Jean-Luc Harion, Gilles Marck, Serge Russeil |
|---|---|
| Přispěvatelé: | CEP/Paris, Centre Énergétique et Procédés (CEP), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Département Technologie des Polymères et Composites & Ingénierie Mécanique (TPCIM), École des Mines de Douai (Mines Douai EMD), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Ministère de l'Economie, des Finances et de l'Industrie |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Optimization
Computer science 020209 energy Energy Engineering and Power Technology Thermodynamics Mechanical engineering 02 engineering and technology Perspective (geometry) [SPI.ENERG]Engineering Sciences [physics]/domain_spi.energ Tree-networks 0202 electrical engineering electronic engineering information engineering Point (geometry) Numerical investigations Structure (mathematical logic) Constructal law Finite volume method Renewable Energy Sustainability and the Environment Frame (networking) Volume (computing) 021001 nanoscience & nanotechnology High-conductivity materials Fuel Technology Nuclear Energy and Engineering Flow (mathematics) Constructal theory Flow problems 0210 nano-technology Deterministic approach |
| Zdroj: | Energy Conversion and Management Energy Conversion and Management, Elsevier, 2011, 52 (2), pp.1033-1046. ⟨10.1016/j.enconman.2010.08.032⟩ |
| ISSN: | 0196-8904 |
| DOI: | 10.1016/j.enconman.2010.08.032⟩ |
| Popis: | International audience; Constructal theory has been used in several scientific fields since it has been established a decade ago. It mainly treats of the "area to point" flow problem, which has been first-written in the frame of the cooling of a finite-size volume generating heat. This problem, widely discussed in literature, has been optimized thanks to constructal theory formulated by Bejan, with a deterministic approach. However, some of the physical and mathematical assumptions made to simplify the problem are questionable, especially the ones regarding the high-conductivity material constituting the tree-shaped structure. In this paper, the performances of constructal designs are evaluated using a finite volume method, which allows making a comparison between different constructal geometries. An algorithm has been developed which has the ability for restraining constructal networks inside a finite-size area, without overconstraining the structure. All things considered, this paper examines constructal theory from a new point of view thanks to analytical and numerical investigations, in the frame of a finite-size volume generating heat. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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