THE EMITTANCE OF YTTRIUM BERYLLIUM-OXIDE THERMOCOUPLE COATING

被引：51

作者：

PETERSON, RC ^{[1
]}

LAURENDEAU, NM ^{[1
]}

机构：

[1] PURDUE UNIV,SCH MECH ENGN,COMBUST LAB,W LAFAYETTE,IN 47907

来源：

COMBUSTION AND FLAME | 1985年 / 60卷 / 03期

基金：

美国国家科学基金会;

关键词：

BERYLLIUM COMPOUNDS - THERMOCOUPLES - Protective Coatings - YTTRIUM COMPOUNDS;

D O I：

10.1016/0010-2180(85)90033-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The emittance of a yttrium-beryllium oxide thermocouple coating was determined by an electrical heating method and by sodium line reversal measurements in the overall temperature range 1465-1830K. The emittance determined by both methods was 0. 60. Comparison of emittances measured with different sized thermocouples in one-dimensional flames implied that the appropriate thermocouple heat transfer model was a cylinder in cross flow. Good agreement was obtained between radiation-corrected temperatures measured with silica coated (emittance of 0. 22) and yttrium-beryllium oxide coated thermocouples.

引用

页码：279 / 284

页数：6

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