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研究一种设置水平矩形翅片对自然对流传热的强化作用,翅片内含三角形穿孔,三角形的底边平行并朝向翅片顶端.比较了这种多孔翅片和同等实心翅片的热耗散率.考虑的参数包括翅片及其穿孔的几何尺寸和热性能.讨论了翅片穿孔后引起的传热强化和翅片重量的减轻.结果表明,在某些三角形穿孔和穿孔间距的值域内,穿孔翅片改进了同等情况实心翅片的热耗散.当翅片导热率及其厚度增大时,穿孔翅片的传热也强化.
In this paper, we study the strengthening effect of horizontal rectangular fins on the natural convection heat transfer, the fins have triangular perforations, the bottom of the triangle is parallel to the top of fins, and the heat consumption of the fins and the equivalent solid fins is compared Dissipation factor.The parameters considered include the geometry and thermal properties of the fins and their perforations.The heat transfer enhancement and the reduction of fin weight caused by perforation of the fins are discussed.The results show that in some triangular perforation and perforation values Perforated fins improve the heat dissipation of the solid fins in the same situation, and as the thermal conductivity and thickness of the fins increase, the heat transfer through the perforated fins also intensifies.