Spatially and Temporally Resolved Temperature Measurements for Slow Evaporating Sessile Drops Heated by a Microfabricated Heater Array

S. W. Paik; K. D. Kihm; S. P. Lee; D. M. Pratt

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Spatially and Temporally Resolved Temperature Measurements for Slow Evaporating Sessile Drops Heated by a Microfabricated Heater Array

机译：微型加热器阵列加热的缓慢蒸发无滴液滴的时空分辨温度测量

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The spatially and temporally resolved evaporation phenomena of a slowly evaporating water droplet are investigated using a microfabricated gold heater array consisting of 32 linear heater elements (100 μm wide and 15 mm long, each). Each of the gold micro-heater elements works both as a temperature sensor and as a heater. The experiment is performed under a Constant voltage mode to examine the spatially resolved temperature history ,of the droplet contact surface for a period starting at initial contact with the heater and lasting to the point of complete dry out. The raw data obtained from the linear array have been tomographically deconvolved so that the radial temperature profile can be determined assuming a circular droplet contact surface.

机译：使用由32个线性加热器元件（每个宽100μm，长15 mm）组成的微型金加热器阵列，研究了缓慢蒸发的水滴在空间和时间上的蒸发现象。每个金微加热器元件既可以用作温度传感器，也可以用作加热器。实验在恒定电压模式下进行，以检查液滴接触表面在空间上解析的温度历史，持续时间为从与加热器初始接触开始，一直持续到完全干燥为止。对从线性阵列获得的原始数据进行了层析反卷积，以便可以假设圆形液滴接触表面来确定径向温度曲线。

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来源
《Journal of Heat Transfer》 |2007年第8期|966-976|共11页
作者
S. W. Paik; K. D. Kihm; S. P. Lee; D. M. Pratt;
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作者单位

Department of Mechanical Engineering,Texas A&M University,College Station, TX 77843;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类热力工程、热机;
关键词
microfabricated heater array; sessile drops; evaporation; temperature measurements; tomography;

机译：微型加热器阵列;无柄滴蒸发;温度测量;断层扫描;

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Spatially and Temporally Resolved Temperature Measurements for Slow Evaporating Sessile Drops Heated by a Microfabricated Heater Array

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