skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Optimization of the thermogauge furnace for realizing high temperature fixed points

Abstract

The thermogauge furnace was commonly used in many NMIs as a blackbody source for calibration of the radiation thermometer. It can also be used for realizing the high temperature fixed point(HTFP). According to our experience, when realizing HTFP we need the furnace provide relative good temperature uniformity to avoid the possible damage to the HTFP. To improve temperature uniformity in the furnace, the furnace tube was machined near the tube ends with a help of a simulation analysis by 'ansys workbench'. Temperature distributions before and after optimization were measured and compared at 1300 °C, 1700°C, 2500 °C, which roughly correspond to Co-C(1324 °C), Pt-C(1738 °C) and Re-C(2474 °C), respectively. The results clearly indicate that through machining the tube the temperature uniformity of the Thermogage furnace can be remarkably improved. A Pt-C high temperature fixed point was realized in the modified Thermogauge furnace subsequently, the plateaus were compared with what obtained using old heater, and the results were presented in this paper.

Authors:
;  [1];  [2]
  1. National Institute of Metrology (NIM), Beijing (China)
  2. AVIC China Precision Engineering Institute for Aircraft Industry, Beijing (China)
Publication Date:
OSTI Identifier:
22218025
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1552; Journal Issue: 1; Conference: 9. international temperature symposium, Los Angeles, CA (United States), 19-23 Mar 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BLACKBODY RADIATION; CALIBRATION; CARBON; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; FURNACES; OPTIMIZATION; PLATINUM; TEMPERATURE DISTRIBUTION; TEMPERATURE MEASUREMENT; THERMOMETERS

Citation Formats

Wang, T., Dong, W., and Liu, F. Optimization of the thermogauge furnace for realizing high temperature fixed points. United States: N. p., 2013. Web. doi:10.1063/1.4819571.
Wang, T., Dong, W., & Liu, F. Optimization of the thermogauge furnace for realizing high temperature fixed points. United States. https://doi.org/10.1063/1.4819571
Wang, T., Dong, W., and Liu, F. Wed . "Optimization of the thermogauge furnace for realizing high temperature fixed points". United States. https://doi.org/10.1063/1.4819571.
@article{osti_22218025,
title = {Optimization of the thermogauge furnace for realizing high temperature fixed points},
author = {Wang, T. and Dong, W. and Liu, F.},
abstractNote = {The thermogauge furnace was commonly used in many NMIs as a blackbody source for calibration of the radiation thermometer. It can also be used for realizing the high temperature fixed point(HTFP). According to our experience, when realizing HTFP we need the furnace provide relative good temperature uniformity to avoid the possible damage to the HTFP. To improve temperature uniformity in the furnace, the furnace tube was machined near the tube ends with a help of a simulation analysis by 'ansys workbench'. Temperature distributions before and after optimization were measured and compared at 1300 °C, 1700°C, 2500 °C, which roughly correspond to Co-C(1324 °C), Pt-C(1738 °C) and Re-C(2474 °C), respectively. The results clearly indicate that through machining the tube the temperature uniformity of the Thermogage furnace can be remarkably improved. A Pt-C high temperature fixed point was realized in the modified Thermogauge furnace subsequently, the plateaus were compared with what obtained using old heater, and the results were presented in this paper.},
doi = {10.1063/1.4819571},
url = {https://www.osti.gov/biblio/22218025}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1552,
place = {United States},
year = {2013},
month = {9}
}