An Improved Nickel Based MIMS Thermocouple for High Temperature Gas Turbine Applications

作者:Scervini Michele*; Rae Catherine
来源:Journal of Engineering for Gas Turbines and Power-Transactions of the ASME, 2013, 135(9): 091601.
DOI:10.1115/1.4024420

摘要

A new nickel based thermocouple for high temperature applications in gas turbines has been devised at the Department of Material Science and Metallurgy of the University of Cambridge. This paper describes the new features of the thermocouple, the drift tests on the first prototype, and compares the behavior of the new sensor with conventional mineral insulated metal sheathed Type K thermocouples: the new thermocouple has a significant improvement in terms of drift and temperature capabilities. Metallurgical analysis has been undertaken on selected sections of the thermocouples exposed at high temperatures, which rationalizes the reduced drift of the new sensor. A second prototype will be tested in subsequent research, from which further improvements in drift and temperature capabilities are expected.

  • 出版日期2013-9