加热管道 meaning in English
warm rising duct
Examples
- Heat tube first , beginning one inch from edge of valve
首先加热管道，从距离阀门2 . 5公分的位置开始加热。 - For long - term protection of heated pipelines , exhaust pipes , smoke stacks and other heated surfaces up to 550 - 600
长期保护加热管道、排气管道、烟囱及其它温度可高达550 - 600的受热面。 - In this condition heat convection inside and outside of tube are coupled . coefficient of convective heat transfer inside and outside of tube gotten through such way compare with coefficient of convective heat transfer inside and outside of tube gotten through by electricity . for comparability between this two condition , the average heat flux on the tube must be equal for this two condition
这种情况下管内外对流换热是藕合的,得到的管内外对流换热系数分别与电加热管道壁面的边界条件下管内和管外流动的对流换热系数相对比,为了使他们具有可比性,我们规定在这两种边界条件下通过管子的平均热流密度相等。