Topic
Constructal law
About: Constructal law is a research topic. Over the lifetime, 1004 publications have been published within this topic receiving 27093 citations.
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Book•
01 Sep 1988
TL;DR: The First Law of Thermodynamics and the Second Law of Exergy were combined in this paper to describe the destruction of exergy in single-phase and multi-phase systems.
Abstract: The First Law of Thermodynamics. The Second Law of Thermodynamics. The Two Laws Combined: The Destruction of Exergy. Single--Phase Systems. Exergy Analysis. Multiphase Systems. Chemically Reactive Systems. Power Generation. Solar Power. Refrigeration. Thermodynamic Optimization. Irreversible Thermodynamics. Constructal Theory of Organization in Nature. Appendix. About the Author. Indexes.
2,710 citations
TL;DR: In this paper, the authors developed a solution to the fundamental problem of how to collect and "channel" to one point the heat generated volumetrically in a low conductivity volume of given size.
771 citations
Book•
01 Jan 2008TL;DR: Constructal theory is the view that the generation of "designedness" in nature is a universal (physics) phenomenon that can be based on principle (the constructal law): "For a finite-size flow system to persist in time (to live) its configuration must change in time so that it provides greater and greater access to its currents" as discussed by the authors.
Abstract: Constructal theory is the view that the generation of “designedness” in nature is a universal (physics) phenomenon that can be based on principle (the constructal law): “For a finite-size flow system to persist in time (to live) its configuration must change in time so that it provides greater and greater access to its currents”. This principle predicts natural form across the board, from river basins to animal design, engineering and social dynamics. In this introduction to the theory we show examples of vascular designs at large and small scales and multi-objective flow configurations.
761 citations
TL;DR: In this paper, the authors outline the fundamentals of the methods of exergy analysis and entropy generation minimization (or thermodynamic optimization) subject to finite-size constraints and specified environmental conditions, and illustrate the accounting for exergy flows and accumulation in closed systems, open systems, heat transfer processes, and power and refrigeration plants.
Abstract: This paper outlines the fundamentals of the methods of exergy analysis and entropy generation minimization (or thermodynamic optimization—the minimization of exergy destruction). The paper begins with a review of the concept of irreversibility, entropy generation, or exergy destruction. Examples illustrate the accounting for exergy flows and accumulation in closed systems, open systems, heat transfer processes, and power and refrigeration plants. The proportionality between exergy destruction and entropy generation sends the designer in search of improved thermodynamic performance subject to finite-size constraints and specified environmental conditions. Examples are drawn from energy storage systems for sensible heat and latent heat, solar energy, and the generation of maximum power in a power plant model with finite heat transfer surface inventory. It is shown that the physical structure (geometric configuration, topology) of the system springs out of the process of global thermodynamic optimization subject to global constraints. This principle generates structure not only in engineering but also in physics and biology (constructal theory). Copyright © 2002 John Wiley & Sons, Ltd.
494 citations