振荡热管传热性能的试验设计与多因素分析

振荡热管的传热受许多因素的影响，其传热性能与因素间的关系是复杂和非线性的。采用统计方法分析铜一水闭合回路振荡热管传热性能与充液率、倾角、热量输入间关系。首先应用中心复合设计对试验进行安排，然后采用最小二乘法拟合试验变量与响应间关系，最后采用方差分析研究3个因素及其交互影响的程度。结果显示：二阶方程模型较好地反映了传热功率与影响因素间的关系；3个因素对传热功率的影响都是显著的，其中倾角的影响最为显著，但它们的交互影响不明显；在研究的范围内，最佳充液率和最佳倾角随加热水流量的增大均有所增加。

Experimental Design and Multifactor Analysis of the Heat Transfer Performance of an Oscillating Heat Pipe

A multitude of factors can affect the heat transfer in an oscillating heat pipe. The relationship between the heat-pipe heat transfer performance and the various factors is complicated and assumes a nonlinear character.By applying statistical techniques analyzed was the relationship between the heat-transfer performance of the oscillating heat pipe of a copper-water closed loop on the one hand and liquid filling rate,inclination angle and heat input on the other.First,tests were arranged by employing a central composite design method.Then,a fitting of the relationship between test variables and a response was achieved by using a least square method.Finally,through a variance analysis studied were three factors and the degree of their interacting influence.The results of the study indicate that the model of a second order equation can remarkably well reflect the relation between the heat transfer rate and the influencing factors.The three factors have a significant impact on the heat transfer rate with the inclination angle showing the most conspicuous impact.However,their interacting influence is not significant.Within the range of the study the optimum liquid-filling rate and the optimum inclination angle will be somewhat greater when the heating water flow rate undergoes an increase.