Journal ArticleDOI
Evaluation of heat transfer augmentation techniques based on their impact on entropy generation
Adrian Bejan,Peter A. Pfister +1 more
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In this paper, the authors use entropy generation as a measure of the relative merits of heat transfer augmentation techniques relative to each other and to the heat exchange apparatus in which they may be incorporated.About:
This article is published in Letters in Heat and Mass Transfer.The article was published on 1980-03-01. It has received 73 citations till now. The article focuses on the topics: Heat capacity rate & NTU method.read more
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Journal ArticleDOI
Entropy generation minimization: The new thermodynamics of finite-size devices and finite-time processes
TL;DR: Entropy generation minimization (finite time thermodynamics, or thermodynamic optimization) is the method that combines into simple models the most basic concepts of heat transfer, fluid mechanics, and thermodynamics as mentioned in this paper.
Journal ArticleDOI
Performance evaluation criteria for use of enhanced heat transfer surfaces in heat exchanger design
TL;DR: In this paper, a broad range of Performance Evaluation Criteria (PEC) applicable to single-phase flow in tubes is presented and detailed procedures are outlined to calculate the performance improvement and to select the optimal surface geometry.
Journal ArticleDOI
Second law analysis in heat transfer
TL;DR: In this article, the second law of thermodynamics is used as a basis for evaluating the irreversibility associated with simple heat transfer processes, such as heat augmentation techniques, heat exchanger design, and thermal insulation systems.
Journal ArticleDOI
The thermodynamic design of heat and mass transfer processes and devices
TL;DR: In this article, the authors provide a comprehensive, up-to-date review of second-daw analyses published in the heat and mass transfer literature during the last decade, focusing on the fundamental mechanisms responsible for the generation of entropy in heat and fluid flow.
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Book ChapterDOI
Heat Transfer and Friction in Turbulent Pipe Flow with Variable Physical Properties
TL;DR: In this article, the authors discuss heat transfer and skin friction in turbulent pipe flow with variable physical properties and highlight analytical methods to describe heat transfer mechanisms for constant liquid properties quite satisfactorily and to take into account the influence of the variation of physical properties with temperature versus heat transfer.
Journal ArticleDOI
Heat and momentum transfer in smooth and rough tubes at various prandtl numbers
D.F. Dipprey,R. H. Sabersky +1 more
TL;DR: In this paper, an experimental investigation of the relation between heat transfer and friction in smooth and rough tubes is presented from an experimental analysis of the relationship between heat and friction, where three rough tubes and one smooth tube were formed from electroplated nickel.
Journal ArticleDOI
Application of rough surfaces to heat exchanger design
R.L Webb,E. R. G. Eckert +1 more
TL;DR: In this paper, the performance advantage of roughened tubes in heat exchanger design, relative to smooth tubes of equal diameter, is defined and the graphical results of example solutions are presented for the repeated-rib roughness.
Journal ArticleDOI
General criterion for rating heat-exchanger performance
TL;DR: In this article, the authors proposed a combination of the combined parameter, equation (16), specific heat at constant pressure, friction factor, mass velocity, mass flow rate, Reynolds number, number of entropy production units, and number of heat transfer units.