黑体辐射源管式发热盘分析与研究

Analysis and Research of Heat Pipe Blackbody Radiation Source

针对黑体辐射源管式发热盘的温度均匀性,本文运用ANSYS软件,对管式发热盘的温度场进行了仿真分析,并运用minitab设计了3因子3水平的实验方案,进一步研究发热管功率、对流换热系数对热平衡的影响。研究结果表明:热平衡状态下发热盘各处最大温差为0.027℃,表面整体温度分布均匀;同组合发热功率下,发热盘表面温度,随着对流换热系数的增大而降低;对流换热系数一定的情况下,发热盘表面温度随着组合功率的增加而增加。改进发热盘厚度并按照原实验方案进行了仿真分析,在同等发热功率下,表面温度高于原设计,缩短了达到目标温度的加热时间。

Be aimed at the temperature uniformity of heat pipe blackbody radiation source,this paper uses ANSYS software to simulate the process of heating and temperature distribution.and designed a experimental scheme of three factors and three levels to further research heating tube power and convective heat transfer coefficient by minitab.The study found that the maximum temperature difference of different points in hot plate on the thermal equilibrium state is 0.027℃,the temperature distribution on the heating plate surface is uniform.When the total heating power is the same,the surface temperature of heating plate decreases with the increase of convection coefficient.When the convective heat transfer coefficient is constant,the surface temperature of heating plate increases with the increase of total heating power.According to the original experimental scheme,the heating plate with reduced thickness was simulated.At the same heating power,the surface temperature of heating plate is higher than the original thickness,the time to reach the target temperature has been shortened.