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Design and Optimization of Temperature Acquisition System for Determination of Effective Thermal Conductivity of Pebble Bed

[+] Author Affiliations
Pengxin Cheng, Cheng Ren, Yongyong Wu, Rui Li

Tsinghua University, Beijing, China

Paper No. ICONE25-66148, pp. V006T08A008; 6 pages
doi:10.1115/ICONE25-66148
From:
  • 2017 25th International Conference on Nuclear Engineering
  • Volume 6: Thermal-Hydraulics
  • Shanghai, China, July 2–6, 2017
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5784-7
  • Copyright © 2017 by ASME

abstract

A full-scale heat transfer test facility has been designed and built for the determination of effective thermal conductivity of pebble bed, which is a macroscopic parameter to characterize the heat transfer capacity of the core in the High Temperature Gas-Cooled Reactor. The data acquisition system is developed to collect, display and record the temperature data in monitoring points. Two alternative software systems are designed to obtain better performance. To enhance precision of the measurement system, several aspects are analyzed and optimized in the implementation of LabVIEW. The error of the hardware system is analyzed, which is within the acceptable range. The data acquisition system can meet the practical demands of temperature acquisition in the range of thermal analysis.

Copyright © 2017 by ASME

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