|Generate QR code
Open Access
Subscription Access
State primary special standard of the unit of thermal conductivity of solids in the temperature range from 2 to 300 K GET 141-2020
https://doi.org/10.32446/0368-1025it.2022-9-3-7
Abstract
Need and relevance of precise thermal conductivity measurements of solid materials used in heat insulating and heat exchange systems is shown originating from significant dependence of heat conductivity of solid on its composition and synthesis method. Construction, operation principle and the results of metrological investigation of the State primary special Standard of the unit of thermal conductivity of solids GET 141-2020 are presented. GET 141-2020 is equipped with new cryostat and cell for thermal conductivity measurements compared to GET 141-84 used till 2020. The range of reproduction of the unit of thermal conductivity of solids has been expanded from 0,1–10 W/(m·K) to 0,05–15 W/(m·K), the temperature range in which measurements are carried out has been increased from 4,2–90 K up to 2–300 K compared to GET 141-84. Method of thermal conductivity measurements is described with application of developed cryostat. An approaches of creation of stable heat contacts between measured sample and heat plates of measurement cell are presented. Metrological characteristics of GET 141-2020 are investigated, a budget of measurement uncertainty is calculated for reproduction of the unit of thermal conductivity of solids. GET 141-2020 is used for calibration of thermal conductivity standards utilized for verification and calibration of thermal conductivity measurement equipment.
About the Authors
A. A. Petukhov
Russian Metrological Institute of Technical Physics and Radio Engineering
Russian Federation
Russian Federation
Aleksey A. Petukhov
Mendeleevo, Moscow region
B. G. Potapov
Russian Metrological Institute of Technical Physics and Radio Engineering
Russian Federation
Russian Federation
Boris G. Potapov
Mendeleevo, Moscow region
V. G. Kytin
Russian Metrological Institute of Technical Physics and Radio Engineering; M. V. Lomonosov Moscow State University
Russian Federation
Russian Federation
Vladimir G. Kytin
Moscow
L. V. Yurov
Russian Metrological Institute of Technical Physics and Radio Engineering
Russian Federation
Russian Federation
Lev V. Yurov
Mendeleevo, Moscow region
E. G. Aslanyan
Russian Metrological Institute of Technical Physics and Radio Engineering
Russian Federation
Russian Federation
Edward G. Aslanyan
Mendeleevo, Moscow region
A. N. Shchipunov
Russian Metrological Institute of Technical Physics and Radio Engineering
Russian Federation
Russian Federation
Andrey N. Shchipunov
Mendeleevo, Moscow region
References
1. Russian metrological encyclopedia, Ed. by Okrepilov V. V., St. Petersburg, Liki Rossii Publ., 2015, vol. 1, pp. 437–439. (In Russ.).
2. Brandt N. B., Kulbachinskii V. A., Kvazichastitsy v fi zike kondensirovannogo sostoyaniya, Moscow, Fizmatlit Publ., 2016, 632 p. (In Russ.).
3. Ivanov Y., Levin A. A., Novikov S., Pshenay-Severin D., Volkov M., Zyuzin A., Burkov A., Nakama T., Schnatmann L., Reith H., Nielsch K., Materials Today Energy, 2021, vol. 20, pp. 100666(1–9). https://doi.org/10.1016/J.MTENER.2021.100666
4. Singh R., Sadeghi S., Shabani B., Energies, 2019, vol. 12(1), 12010075(1–20). https://doi.org/10.3390/en12010075
5. Witting I. T., Ricci F., Chasapis Th. C., Hautier G., Snyder G. J. Research, 2020, vol. 2020, 4361703(1–15). https://doi.org/10.34133/2020/4361703
6. Calatroni S., Materials & Properties: Thermal & Electrical Characteristics, Proceedings of the 2017 CERN–Accelerator–School course on Vacuum for Particle Accelerators, Glumslöv, (Sweden), available at: https://arxiv.org/pdf/2006.02842. pdf (accessed: 29.08.2022).
7. Zhao D., Qian X., Gu X., Jajja S. A., Yang R., Journal of Electronic Packaging, 2016, vol. 138(4), 040802(1–19). https://doi.org/10.1115/1.4034605
8. Elkholy A., Kempers R., Case Studies in Thermal Engineering, 2022, vol. 31, 101829(1–13). https://doi.org/10.1016/j.csite.2022.10182
9. Feng B., Tu J., Zhang Yu.-H., Fan Li-Wu, Yu Zi-T., Applied Thermal Engineering, 2020, vol. 171, 114931(1–16). https://doi.org/10.1016/j.applthermaleng.2020.114931
10. Sviridenko V. I., Investigation of thermal properties of the plexiglass on the apparatus TAU-5, Proc. Russian conference (with international participants) on thermophysical properties of substances, Moscow, Russia, October 15–19, 2018, pp. 136–137. (In Russ.).
Review
For citations:
Petukhov A.A., Potapov B.G., Kytin V.G., Yurov L.V., Aslanyan E.G., Shchipunov A.N. State primary special standard of the unit of thermal conductivity of solids in the temperature range from 2 to 300 K GET 141-2020. Izmeritel`naya Tekhnika. 2022;(9):3-7. (In Russ.) https://doi.org/10.32446/0368-1025it.2022-9-3-7
Views:
118
Email this article 