Entropy Generation Minimization of Fully Developed Internal Flow With Constant Heat Flux
- 16 January 2004
- journal article
- Published by ASME International in Journal of Heat Transfer
- Vol. 126 (4), 656-659
- https://doi.org/10.1115/1.1777585
Abstract
This paper uses the entropy generation minimization (EGM) method to optimize a single-phase, convective, fully developed flow with uniform and constant heat flux. For fixed mass flow rate and fixed total heat transfer rate, and the assumption of uniform and constant heat flux, an optimal Reynolds number for laminar and turbulent flow is obtained. The study also compares optimal Reynolds number and minimum entropy generation for cross sections: square, equilateral triangle, and rectangle with aspect ratios of two and eight. The rectangle with aspect ratio of eight had the smallest optimal Reynolds number, the smallest entropy generation number, and the smallest flow length.Keywords
This publication has 10 references indexed in Scilit:
- Entropy Generation Minimization of Fully Developed Internal Convective Flows With Constant Heat FluxPublished by ASME International ,2003
- Entropy generation and pumping power in a turbulent fluid flow through a smooth pipe subjected to constant heat fluxExergy, An International Journal, 2002
- Entropy generation in turbulent liquid flow through a smooth duct subjected to constant wall temperatureInternational Journal of Heat and Mass Transfer, 2000
- Irreversibilities in various duct geometries with constant wall heat flux and laminar flowEnergy, 1998
- Thermodynamics of laminar viscous flow through a duct subjected to constant heat fluxEnergy, 1996
- Thermodynamic optimization of convective heat transfer through a duct with constant wall temperatureInternational Journal of Heat and Mass Transfer, 1987
- Second-Law Analysis in Heat Transfer and Thermal DesignAdvances in Heat Transfer, 1982
- Second law analysis in heat transferEnergy, 1980
- A Study of Entropy Generation in Fundamental Convective Heat TransferJournal of Heat Transfer, 1979
- General criterion for rating heat-exchanger performanceInternational Journal of Heat and Mass Transfer, 1978