LI. On the lagging of pipes and wires
LI. On the lagging of pipes and wires
复制标题
DOI：
10.1080/14786441008636929
复制
发表时间：
1910-09
期刊：
影响因子：
--
通讯作者：
Alfred W. Porter B.Sc.
中科院分区：
文献类型：
--
作者：
Alfred W. Porter B.Sc.
如果B大于k/e，则效果是增加8a（对于给定的供热速率）;在这些条件下，涂层起着一个缓冲器的作用。但是，如果B小于这个临界值，则其增加的效果是相反的;在这种情况下，涂层促进了热量的向外流动。这个临界值如果存在的话，与金属丝的半径无关;但是必须注意，由于B永远不会小于a，所以对于某一特定的金属丝，它可能不存在。为了找出它发生的可能性，我们必须检查k和e的值，这可能会考虑。
The effect then is to increase 8a (for a given rate of supply of heat) provided that b is greater than k/e; the coating under these conditions acts as a lugger. But if b is less than this critical value the effect of its increase is reversed; the coating under these circumstances promotes the outward flow of heat. This critical value if it exists is indeTende~ d of the~'adius of the wire; but it must be noted that since b can never he less than a, it is possible that for a particular wire it does not exist. To find out the likelihood o~'its occurrence we must examine the values of k and e which will probably enter into account.