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논문 기본 정보

자료유형
학술대회자료
저자정보
Akihiro Hattori (Waseda University) Mikio Yoshida (Waseda University) Taisei Tomita (Waseda University) Hikaru Nishikawa (Waseda University) Tetsuya Sato (Waseda University)
저널정보
대한설비공학회 대한설비공학회 학술발표대회논문집 대한설비공학회 2023년도 하계학술발표대회 논문집
발행연도
2023.6
수록면
384 - 387 (4page)

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초록· 키워드

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Frosting is a critical problem of a cryogenic precooler equipped on the pre-cooled turbojet engine (PCTJ) for a hypersonic airliner. Therefore, an effective method to suppress frosting on a cryogenic surface is required. We propose a novel method, the aerosol injecting method, in which the aerosol particles are injected into the humid air to intentionally facilitate mist generation by heterogeneous nucleation. The proposed method is based on the fact that the frost amount is reduced on the cryogenic surface due to mist generation. In this research, we conducted frosting experiments on a cryogenic plate to confirm the effect of the proposed method. The experiment conditions were air temperature of 27 ℃, air humidity of 12 g/㎥, air velocity of 2 ㎧, and plate temperature of -150 ℃. Arizona test dust (ATD) was used as aerosol particles. As a result, the amount of frost was reduced by more than 20% by the ATD injection. It was also found that frosting is suppressed on the rear half of the plate. The present method has room for improvement but can effectively solve the frosting problem on cryogenic surfaces.

목차

Abstract
1. Introduction
2. Method
3. Result
4. Conclusion
References

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