Open Access
ARTICLE
Second Law Analysis and Optimization of Elliptical Pin Fin Heat Sinks Using Firefly Algorithm
Nawaf N. Hamadneh1, Waqar A. Khan2, Ilyas Khan3, *
1 Department of Basic Sciences, College of Science and Theoretical Studies, Saudi Electronic University, Riyadh, 11673, Saudi Arabia.
2 Department of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University, Al Khobar, 31952, Saudi Arabia.
3 Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City, 72915, Vietnam.
* Corresponding Author: Ilyas Khan. Email: .
Computers, Materials & Continua 2020, 65(2), 1015-1032. https://doi.org/10.32604/cmc.2020.011476
Received 10 May 2020; Accepted 26 June 2020; Issue published 20 August 2020
Abstract
One of the most significant considerations in the design of a heat sink is thermal
management due to increasing thermal flux and miniature in size. These heat sinks utilize
plate or pin fins depending upon the required heat dissipation rate. They are designed to
optimize overall performance. Elliptical pin fin heat sinks enhance heat transfer rates and
reduce the pumping power. In this study, the Firefly Algorithm is implemented to optimize
heat sinks with elliptical pin-fins. The pin-fins are arranged in an inline fashion. The natureinspired metaheuristic algorithm performs powerfully and efficiently in solving numerical
global optimization problems. Based on mass, energy, and entropy balance, three models
are developed for thermal resistance, hydraulic resistance, and entropy generation rate in
the heat sink. The major axis is used as the characteristic length, and the maximum velocity
is used as the reference velocity. The entropy generation rate comprises the combined effect
of thermal resistance and pressure drop. The total EGR is minimized by utilizing the firefly
algorithm. The optimization model utilizes analytical/empirical correlations for the heat
transfer coefficients and friction factors. It is shown that both thermal resistance and
pressure drop can be simultaneously optimized using this algorithm. It is demonstrated that
the performance of FFA is much better than PPA.
Keywords
Cite This Article
N. N. Hamadneh, W. A. Khan and I. Khan, "Second law analysis and optimization of elliptical pin fin heat sinks using firefly algorithm,"
Computers, Materials & Continua, vol. 65, no.2, pp. 1015–1032, 2020.