Open Access
ARTICLE
NUMERICAL SIMULATION OF METAL-PLASTIC COMPOSITE HEAT RADIATOR WITH HEMISPHERICAL MICROSTRUCTURE ARRAY
Hui Jianga,b, Daming Wua,b,c, Jian Zhuanga,b,*, Ying Liua,b,c, Changqing Huanga,b
a College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
b Polymer Material Processing Equipment Engineering Research Center of The Ministry of Education, Beijing , 100029, China
c
State Key Laboratory of Organic–Inorganic Composites, Beijing University of Chemical Technology, Beijing , 100029, China
* Corresponding Author: Email:
Frontiers in Heat and Mass Transfer 2015, 6, 1-6. https://doi.org/10.5098/hmt.6.14
Abstract
A new type of metal-plastic composite heat radiator with hemispherical microstructure array was proposed in this paper. The influence of the
geometrical parameters of the microstructure array, including size of the hemisphere, configuration of hemisphere, tilt angle of the radiator, thermal
conductivity and radiation emissivity of the plastic, on the process of heat transfer under natural convection were numerically simulated. It was
concluded that the metal-plastic composite heat radiator with hemispherical microstructure array had comparable heat transfer behaviors with those
of metal heat radiator. So it is possible to replace metal heat radiator by such a metal-plastic composite heat radiator in case of high moisture or
corrosion applications. Under the same volume, the cooling capacity of the heat radiator made of metal-plastic was 20 times as the heat radiator made
of metal. The heat flux of plastic plate with hemispherical microstructure was superior to the ordinary flat plastic plate. And the former heat flux was
2050 W/m
2, about two times as the latter, 1272W/m
2. The optimal inclination angle of the heat radiator with maximum heater flux was around 45°.
Keywords
Cite This Article
Jiang, H., Wu, D., Zhuang, J., Liu, Y., Huang, C. (2015). NUMERICAL SIMULATION OF METAL-PLASTIC COMPOSITE HEAT RADIATOR WITH HEMISPHERICAL MICROSTRUCTURE ARRAY.
Frontiers in Heat and Mass Transfer, 6(1), 1–6.