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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 32 , No. 5

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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 32, No. 5, pp. 274-282
Abbreviation: J. Korean Soc. Manuf. Technol. Eng.
ISSN: 2508-5107 (Online)
Print publication date 15 Oct 2023
Received 07 Sep 2023 Revised 27 Sep 2023 Accepted 04 Oct 2023
DOI: https://doi.org/10.7735/ksmte.2023.32.5.274
기판에 부착된 인공위성용 필름 히터의 성능 및 온도 변화 특성
최진우^a ; 성재용^b^{, *} ; 김준현^c



Performance and Temperature Change Characteristics of a Film Heater Attached to Substrates for Satellite Applications
Jinwoo Choi^a ; Jaeyong Sung^b^{, *} ; Joon Hyun Kim^c
aGraduate Student, Department of Mechanical Engineering, Seoul National University of Science & Technology
bDepartment of Mechanical and Automotive Engineering, Seoul National University of Science & Technology
cNDT Research Center, Seoul National University of Science & Technology
Correspondence to : ^*Tel.: +82-2-970-6398 E-mail address: jysung@seoultech.ac.kr (Jaeyong Sung).



Funding Information ▼ National Research Foundation of Korea NRF-2020M1A3B2A01082442

Abstract

This study has examined the performance and temperature change characteristics of a satellite film heater fabricated using screen printing technology using silver paste. The temperature variations in the film heater attached to CFRP and Al 6061 substrates were modeled numerically in an FM (Flight Model) environment incorporating radiation heat transfers in a vacuum state under various sink temperatures. The results demonstrate that the constrained distance between heaters increases non-linearly with the sink temperature. The required power density to reach the maximum allowable temperature diminishes with the sink temperature. The required power density is higher than the ESCC standard of 0.54 W/cm², which is assessed in an EM (engineering model) environment without substrate.


Keywords: Silver paste, Film heater, Satellite, Power density, Performance curve

Acknowledgments

이 연구는 2020년 우주개발기반조성 및 성과확산산업 일환으로 한국연구재단의 연구비 지원(NRF-2020M1A3B2A01082442)의 2단계 사업으로 수행되었습니다.

References


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Jinwoo Choi

Graduate Student in the Department of Mechanical Engineering, Seoul National University of Science and Technology. His research interest is Heat Transfer.

E-mail: chlwlsdn27@seoultech.ac.kr

Jaeyong Sung

Professor in the Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology. His research interest is Flow Visualization.

E-mail: jysung@seoultech.ac.kr

Joon Hyun Kim

Research Professor in NDT Research Center, Seoul National University of Science and Technology. His research interest is Tribology and Thermal Fluid.

E-mail: joonk61@seoultech.ac.kr