Leidenfrost transition temperature for stainless steel meshes
Leidenfrost transition temperature for stainless steel meshes
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DOI：
10.1016/j.matlet.2016.04.124
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发表时间：
2016-08
影响因子：
3
通讯作者：
Nicasio R. Geraldi;G. McHale;B. Xu;G. Wells;L. Dodd;D. Wood;M. Newton
中科院分区：
文献类型：
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作者：
Nicasio R. Geraldi;G. McHale;B. Xu;G. Wells;L. Dodd;D. Wood;M. Newton
在远高于100 °C的表面上，水不会简单地沸腾。当固体和液体之间有足够的热传递时，在水滴下瞬间形成连续的蒸汽层，水滴位于蒸汽垫上，高度移动的并与固体表面绝缘。这被称为莱顿弗罗斯特效应，如果发生这种情况的温度被称为莱顿弗罗斯特转变温度。在本报告中，对不连续表面（不锈钢网）进行了研究，以确定编织材料对Leidenfrost现象的影响。发现随着网片开口面积的增加，莱顿弗罗斯特温度从开口面积为0.004 mm2时的265 °C升高至开口面积为0.100 mm2时的315 °C。这允许抑制莱顿弗罗斯特效应，因为它可以从不锈钢表面的185 °C增加到300 °C以上。
On surfaces well above 100 °C water does not simply boil away. When there is a sufficient heat transfer between the solid and the liquid a continuous vapour layer instantaneous forms under a droplet of water and the drop sits on a cushion of vapour, highly mobile and insulated from the solid surface. This is known as the Leidenfrost effect and the temperature at which this occurs if known as the Leidenfrost transition temperature. In this report, an investigation of discontinuous surfaces, stainless steel meshes, have been tested to determine the effect of the woven material on the Leidenfrost phenomenon. It was found that with increasing the open area of the mesh pushes up the Leidenfrost temperature from 265 °C for an open area of 0.004 mm2to 315 °C for open area of 0.100 mm2. This allows suppression of the Leidenfrost effect as it can be increase to over 300 °C from 185 °C for a stainless steel surface.