Ablation Characteristics of a Dual-layer Thermal Protection System Material using 0.4 MW Arc-heated Wind Tunnel

Young Chan Kim; Rajesh Kumar Chinnaraj; Seong Man Choi

doi:10.6108/KSPE.2024.28.5.016

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2024 Vol.28, Issue 5 Preview Page Next Page

RESEARCH PAPERS

Ablation Characteristics of a Dual-layer Thermal Protection System Material using 0.4 MW Arc-heated Wind Tunnel 0.4 MW급 아크가열 풍동을 이용한 이중구조 열 보호 시스템 재료 삭마 특성

31 October 2024. pp. 16-26

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Abstract

An experimental study of a dual-layer thermal protection system material fabricated using carbon-phenolic and silica-phenolic was conducted. A 0.4 MW arc-heated wind tunnel was utilized to study the ablation and internal temperature characteristics of the material. The experimental conditions were at the following heat flux conditions: 7.51 MW/m², and 6.25 MW/m² to 9.40 MW/m², a time-varying heat flux test condition to simulate the atmospheric re-entry process. The results showed that while the maximum temperature at the stagnation point of the surface was similar irrespective of the carbon-phenolic layer thickness, the internal temperatures increased as the carbon-phenolic layer became thinner. Additionally, the recession rate was measured from 0.047 mm/s to 0.07 mm/s for two heat flux conditions.

Keywords

Ablation

Thermal Protection System

Carbon Phenolic

Silica Phenolic

Plasma Wind Tunnel

Recession Rate

카본 페놀릭과 실리카 페놀릭을 결합한 이중구조 열 보호 시스템 재료에 대한 실험연구를 수행하였다. 0.4 MW급 아크가열 풍동을 이용하여 재료의 삭마 및 내부온도 특성을 연구하였다. 실험조건은 열유속 7.51 MW/m² 과 재진입 과정을 모사하기 위하여 시간에 따라 열유속을 변화시키면서 6.25 MW/m² 에서 9.40 MW/m² 로 부여하였다. 실험결과에서 정체점 표면의 최고 온도는 카본 페놀릭의 두께에 관계없이 유사하였지만, 시편의 내부 온도는 카본 페놀릭 시편의 두께가 얇을수록 더 높아짐을 확인하였다. 또한 두 가지 열유속 조건에서 삭마율은 0.047 mm/s 에서 0.07 mm/s 까지로 측정되었다.

키워드

삭마

TPS

카본 페놀릭

실리카 페놀릭

플라즈마 풍동

삭마율

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Information

Publisher :The Korean Society of Propulsion Engineers
Publisher(Ko) :한국추진공학회
Journal Title :Journal of the Korean Society of Propulsion Engineers
Journal Title(Ko) :한국추진공학회지
Volume : 28
No :5
Pages :16-26
Received Date : 2024-01-25
Revised Date : 2024-09-07
Accepted Date : 2024-09-12
DOI :https://doi.org/10.6108/KSPE.2024.28.5.016

Journal of the Korean Society of Propulsion Engineers ISSN:1226-6027(Print) 2288-4548(Online) 한국추진공학회지

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