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2020 Vol.36, Issue 8 Preview Page

Research Article

Experimental Assessment of Manufacturing System Efficiency and Hydrogen Reduction Reaction for Fe(0) Simulation for KLS-1

한국형 인공월면토 생산 시스템 효율성 및 Fe(0) 모사를 위한 수소 환원반응에 관한 실험적 평가

Hyunwoo Jin1
,
Young-Jae Kim2
,
Byung Hyun Ryu3
,
Jangguen Lee4*
진 현우1
,
김 영재2
,
류 병현3
,
이 장근4*
1Member, Postdoctoral Researcher, Korea Institute of Civil Engrg. and Building Technology
2Senior Researcher, Korea Institute of Civil Engrg. and Building Technology
3Member, Research Specialist, Korea Institute of Civil Engrg. and Building Technology
4Member, Research Fellow, Korea Institute of Civil Engrg. and Building Technology
1정회원, 한국건설기술연구원 박사후연구원
2비회원, 한국건설기술연구원 수석연구원
3정회원, 한국건설기술연구원 전임연구원
4정회원, 한국건설기술연구원 연구위원
* Corresponding Author
31 August 2020. pp. 17-25
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Abstract

최근 한국건설기술연구원은 우주개발 및 심우주 탐사를 위한 전진기지로서 활용도가 높은 달에 관한 연구수행을 목적으로 달 행성 지상 환경 모사를 위한 대규모 지반 열 진공 챔버(DTVC)를 건설하였다. 유관연구 수행을 위해 대량의 한국형 인공월면토(KLS-1)가 요구되고 있음에도 불구하고 현실적으로 대량생산은 어려운 실정이다. 본 논문에서는 KLS-1의 대량 생산이 가능한 반자동화 시스템에 관해 상세하게 설명하고 있으며, 이것이 기존 생산 시스템보다 7배 이상 효율적임을 밝혀냈다. 뿐만 아니라, 월면토와의 유사성 증대를 위해 월면토 고유 특성인 nanophase Fe(0)(이하 np-Fe(0))을 모사하기 위한 실험적 연구를 진행하였다. 월면토를 이루는 광물 중 하나인 티탄철석(ilmenite)을 활용해 수소기체 환원반응을 진행한 결과, 700℃ 이상의 온도에서는 np-Fe(0)이 형성됨을 밝혀냈으며 900℃까지는 온도와 비례하여 np-Fe(0)이 증가함을 밝혀냈다.

Korea Institute of Civil Engineering and Building Technology has constructed a large scale Dust Thermal Vacuum Chamber to simulate extreme lunar terrestrial environments and to study the Moon as an outposts for space development and exploration. Although a large amount of KLS-1 (Korean Lunar Simulant-1) is required for research, its massive production is practically difficult. This paper describes semi-automatic manufacturing system for massive production of KLS-1 in detail, which is seven times more efficient than manual production. In addition, to increase the similarity with lunar regolith, hydrogen reduction reaction using ilmenite which is one of the minerals was also conducted to simulate nanophase Fe(0) which is the unique property of lunar regolith. As a result, it was found that np-Fe(0) was formed at a temperature of 700℃ or higher, and increased in proportion to the temperature until 900℃.

Keywords
KLS-1
Mass production
Nanophase Fe(0)
Semi-automatic
Space development

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Information
  • Publisher :The Korean Geotechnical Society
  • Publisher(Ko) :한국지반공학회
  • Journal Title :Journal of the Korean Geotechnical Society
  • Journal Title(Ko) :한국지반공학회 논문집
  • Volume : 36
  • No :8
  • Pages :17-25
  • Received Date : 2020-05-07
  • Revised Date : 2020-06-05
  • Accepted Date : 2020-06-22
  • DOI :https://doi.org/10.7843/kgs.2020.36.8.17
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