기판에 부착된 인공위성용 필름 히터의 성능 및 온도 변화 특성
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 curveAcknowledgments
이 연구는 2020년 우주개발기반조성 및 성과확산산업 일환으로 한국연구재단의 연구비 지원(NRF-2020M1A3B2A01082442)의 2단계 사업으로 수행되었습니다.
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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
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
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