Optimal design of transverse ribs in tubes for thermal performance enhancement

Kyung Min Kim, Beom Seok Kim, Dong Hyun Lee, Hokyu Moon and Hyung Hee Cho

Energy, 2010, vol. 35, issue 6, 2400-2406

Abstract: We conducted an optimization using the second-order response surface method to determine the transverse rib geometry required to achieve the highest cooling performance in a circular channel. The best rib geometry was based on three design variables; rib height, rib width, and rib pitch. The turbulent heat transfer coefficients and friction losses were first calculated and then used to determine the thermal performance. We constructed the response surfaces of the three design variables as functions of the average Nusselt number ratio, friction loss, and thermal performance. These functions led to the optimum design point at the highest heat transfer rate in the special case of an actual turbine cooling passage with a constant friction loss.

Keywords: Rib turbulator; Heat transfer enhancement; Optimization; Response surface method (search for similar items in EconPapers)
Date: 2010
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:35:y:2010:i:6:p:2400-2406

DOI: 10.1016/j.energy.2010.02.020

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