CAJ | 학술논문

针对航天器故障状态下，密闭空间温湿度可能会出现较大变化的问题，提出探索温湿度变化与LiOH吸收效率的关系。通过模拟产品使用工况，采取小样试验的方法，探索不同温湿度条件的模拟气体对LiOH吸收效率的影响。结果表明，相同温度条件下，相对湿度在70％以下，不会形成游离水和大块水合结晶；水蒸汽在临近饱和状态，尤其是相对湿度95％以上，材料表面会形成局部冷凝水溶液和大块水合结晶，阻碍反应进行，使LiOH吸收效率显著降低。相同湿度条件下，温度对反应器有效工作时间影响不大，对吸收剂LiOH的吸收效率影响不明显。
침대항천기고장상태하，밀폐공간온습도가능회출현교대변화적문제，제출탐색온습도변화여LiOH흡수효솔적관계。통과모의산품사용공황，채취소양시험적방법，탐색불동온습도조건적모의기체대LiOH흡수효솔적영향。결과표명，상동온도조건하，상대습도재70％이하，불회형성유리수화대괴수합결정；수증기재림근포화상태，우기시상대습도95％이상，재료표면회형성국부냉응수용액화대괴수합결정，조애반응진행，사LiOH흡수효솔현저강저。상동습도조건하，온도대반응기유효공작시간영향불대，대흡수제LiOH적흡수효솔영향불명현。
The temperature and humidity in the confined space may change greatly when a spacecraft is not operating normally. For that reason, it is important to explore the relationship between changes in temperature and humidity and LiOH absorption rate. Through simulating the working conditions, the influence of different temperature and humidity conditions on LiOH absorption efficiency is studied. Results show that under the same temperature condition, when the relative humidity is below 70%, free water and chunks of hydrated crystal will not form; but if the water vapor is near the saturation point, especially when relative humidity is above 95%, partial condensate aqueous solution and a bulk of hydrated crystal will form on the surface, which will hinder the reaction, and significantly lower the LiOH absorption efficiency. Under the same humidity conditions, the influence of temperature on the effective working time of the reactor is little, and the influence on LiOH absorption efficiency unobvious.