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논문 기본 정보

자료유형
학술저널
저자정보
Taeil Chung (Korea Institute of Civil Engineering and Building Technology) Jong Yeon Lim (Korea Research Institute of Standards and Science, Daejeon) Sangbaek Kang (VACSCO) Yongho Yoo (Korea Institute of Civil Engineering and Building Technology) Hyu-Soung Shin (Korea Institute of Civil Engineering and Building Technology)
저널정보
한국진공학회(ASCT) Applied Science and Convergence Technology Applied Science and Convergence Technology Vol.27 No.6
발행연도
2018.11
수록면
120 - 125 (6page)
DOI
10.5757/ASCT.2018.27.6.120

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초록· 키워드

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The Korea Institute of Civil Engineering and Building Technology is currently developing a planetary surface environment simulator for the Moon and Mars. Known as a dirty thermal vacuum chamber (DTVC), this simulator contains a large volume of soil that undergoes extensive testing using special equipment. The construction of the DTVC started in 2017 and is expected to be completed by the end of 2019. The DTVC is a large vacuum chamber with an inner space measuring 4.70 m (W) × 4.70 m (H) × 4.65 m (L). The goal of the first construction stage was to achieve a target pressure of 5 × 10<SUP>-8</SUP> mbar without soil. After assembling the chamber body and the pumping system, we attempted to reduce the leakage with the help of pressure buildup analysis, helium leak testing, and residual gas analysis. After vacuum diagnosis of the chamber, the overall leakage decreased and the target pressure was achieved in approximately 93 hours after the pumping commenced.

목차

Abstract
Ⅰ. Introduction
Ⅱ. Experimental details
Ⅲ. Results and discussion
Ⅳ. Conclusions
References

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