TY - JOUR
T1 - Optimization of the radial heat sink with a concentric cylinder and triangular fins installed on a circular base
AU - Kwak, Dong Bin
AU - Kwak, Hoon Pyo
AU - Noh, Jung Hun
AU - Yook, Se Jin
N1 - Publisher Copyright:
© 2018, The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - In this study, a radial heat sink with a concentric cylinder and triangular fins installed on a circular base, that is, a heat sink representing a general shape of the heat sinks employed for most of the commercial LED light bulbs, was optimized in terms of mass and thermal resistance. A numerical study was performed by considering natural convection and radiation heat transfer, and was validated through experiment. The effects of various geometric parameters, that is, radius of heat sink base, number of fins, fin height, and radius of hollow cylinder, on thermal resistance and convectional heat transfer coefficient were investigated. Multiobjective optimization was conducted by using the weighted sum method and the genetic algorithm. As a result, Pareto fronts were obtained, and the thermal resistance and mass of the radial heat sink with triangular fins were reduced compared to those of the reference radial heat sink.
AB - In this study, a radial heat sink with a concentric cylinder and triangular fins installed on a circular base, that is, a heat sink representing a general shape of the heat sinks employed for most of the commercial LED light bulbs, was optimized in terms of mass and thermal resistance. A numerical study was performed by considering natural convection and radiation heat transfer, and was validated through experiment. The effects of various geometric parameters, that is, radius of heat sink base, number of fins, fin height, and radius of hollow cylinder, on thermal resistance and convectional heat transfer coefficient were investigated. Multiobjective optimization was conducted by using the weighted sum method and the genetic algorithm. As a result, Pareto fronts were obtained, and the thermal resistance and mass of the radial heat sink with triangular fins were reduced compared to those of the reference radial heat sink.
KW - Multiobjective optimization
KW - Radial heat sink
KW - Thermal resistance
KW - Triangular fin
UR - https://www.scopus.com/pages/publications/85040832917
U2 - 10.1007/s12206-017-1252-4
DO - 10.1007/s12206-017-1252-4
M3 - Article
AN - SCOPUS:85040832917
SN - 1738-494X
VL - 32
SP - 505
EP - 512
JO - Journal of Mechanical Science and Technology
JF - Journal of Mechanical Science and Technology
IS - 1
ER -