Abstract

친환경 추진제인 과산화수소의 성능 향상을 위해 블렌딩 기법을 적용하였다. 90 wt.% 과산화수소에 독성이 낮은 에탄올을 블렌딩 하였으며, 저장성 평가 결과 연료에 의한 저장성 저하는 나타나지 않았다. 재료 적합성 및 내열 평가 결과 Inconel X750과 Topheat A가 높은 적합성과 내열 특성을 보였으며, SUS 316L 역시 적합성이 우수하였다. 내열 특성 향상을 위해 <TEX>$Al_2O_3$</TEX>, <TEX>$Y_2O_3$</TEX>, <TEX>$ZrO_2$</TEX>를 코팅 후 내구성 평가를 수행한 결과, <TEX>$Y_2O_3$</TEX> 코팅은 사용이 부적합하였으며, 재료의 사용 가능 온도가 코팅의 접착성과 관련이 있음을 확인하였다. 블렌딩 기법을 통한 성능 향상을 확인하기 위해 추력기 실험을 진행하였으며, 실험 결과 반응기 온도가 <TEX>$870^{\circ}C$</TEX>로, 90 wt.% 과산화수소의 단열 분해 온도인 <TEX>$760^{\circ}C$</TEX>보다 높음을 확인하였다. Blending method was applied to increase the performance of hydrogen peroxide which is called green propellant. 90 wt.% hydrogen peroxide was blended with ethanol which is less toxic fuel, and there was no storability decrease due to fuel addition. Inconel X750 and Tophet A showed good compatibility and high heat resistance, and SUS 316L was compatible. <TEX>$Al_2O_3$</TEX>, <TEX>$Y_2O_3$</TEX>, and <TEX>$ZrO_2$</TEX>, were coated on the material to improve heat resistance, and it was proved from endurance test that <TEX>$Y_2O_3$</TEX> coating is not suitable and adhesive strength between coating and material is related with allowable temperature of material. Thruster test was performed to confirm the performance increase by blending method, and chamber temperature was <TEX>$870^{\circ}C$</TEX> which is higher than <TEX>$760^{\circ}C$</TEX> that is adiabatic chamber temperature of 90 wt.% hydrogen peroxide.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.