Research and Design of Gardon Heat Flux Sensor

Abstract:

In the field of aerospace, the Gardon heat flux sensor is not allowed water-cooling device, so the sensor sensitivity would be greatly affected by the temperature rise of the heat sink. To deal with this problem, a high-temperature, high-precision heat flux sensor is designed based on the metal thermo-electric effect and the principle of thermal conduction. First of all, the measuring principle of the Gardon heat flux sensor is expounded. Then the heating process of the copper heat sink is derived. In order to slowdown the temperature of the heat sink, kinds of adiabatic measures are taken. Thermodynamic simulation for the designed sensor is performed by the ANSYS finite element simulation software. Finally, experiments have been carried out to test the performance of the sensor. The experimental results show that the sensitivity of the sensor with adiabatic measures did not decline within 1000s, and its linearity is 1.38%. So the sensor is able to meet applications in the aerospace field.

• Periodical: Advanced Materials Research (Volumes 889-890)
• Pages: 833-837
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.889-890.833
• Online since: February 2014
• Authors: Jing Yu, Xiong Zhu Bu, Xiao Gang Chu
• Keywords: Adiabatic Measures, Gardon Heat Flux Sensor, Temperature Rise, Thermodynamic Simulation

References

[1] Childs, P. R. N., J. R. Greenwood, and C. A. Long, Journal of Mechanical Engineering Science 213. 7 (1999): 655-677.

[2] Peabody, Hume L, Differential thermopile heat flux transducer. U.S. Patent No. 6, 278, 051. 21 Aug. (2001).

[3] Gardon, Robert, Journal of Heat Transfer, (US) 82 (1960).

[4] Silvani, Xavier, and Frédéric Morandini, Fire Safety Journal 44. 2 (2009): 279-285.

[5] Gardon, Robert, Review of Scientific Instruments 24. 5 (1953): 366-370.

[6] Stathopoulos P, Hofmann F, Rothenfluh T, Experimental Heat Transfer25. 3 (2012): 222-237.

[7] AV Murthy, BK Tsai, and RD Saunders, Metrologia35. 4 (1998): 501-504.

[8] Ballestrín J, Estrada C A, Rodríguez-Alonso M, Solar energy 80. 10 (2006): 1314-1320.

DOI: 10.1016/j.solener.2006.03.005