CAJ | 학술논문

现代飞艇一般采用充放空气、抛载重物等方式调节浮升力以实现升降，但由于空气的可充放体积和载重物携带量的限制，飞艇调节升降的能力十分有限。如果将气液相变系统应用到飞艇中，气囊内气体的量就可以大范围改变，从而提高飞艇调节浮升力的能力。本文针对飞艇高空运行工况，提出了采用单换热器的高空高效轻量化气液相变系统的总体设计方案，并给出系统结构的设计方法。应用本文设计方法对液化速率为0.5 kg/min 和汽化速率为1 kg/min 相变系统进行设计，设计结果显示系统的总重量仅为393.55 kg，总功率仅为5.45 kW，满足了高空飞艇对相变系统的设计要求。
현대비정일반채용충방공기、포재중물등방식조절부승력이실현승강，단유우공기적가충방체적화재중물휴대량적한제，비정조절승강적능력십분유한。여과장기액상변계통응용도비정중，기낭내기체적량취가이대범위개변，종이제고비정조절부승력적능력。본문침대비정고공운행공황，제출료채용단환열기적고공고효경양화기액상변계통적총체설계방안，병급출계통결구적설계방법。응용본문설계방법대액화속솔위0.5 kg/min 화기화속솔위1 kg/min 상변계통진행설계，설계결과현시계통적총중량부위393.55 kg，총공솔부위5.45 kW，만족료고공비정대상변계통적설계요구。
Existing airships usually adjust the lift by supplying and exhausting the air or throwing the load. However, due to the limit of the air volume and the load weight, it is difficult to adjust the lift of the airship. The vapor-liquid phase transition system can change the gas volume in a wide range, and thus promote the ability of the lift adjustment. Aiming at the high-altitude working conditions, an overall design of high efficiency lightweight vapor-liquid phase transition system with a single heat exchanger was proposed, and the design method was developed. With this method, a system with the liquefaction rate of 0.5 kg/min and the vaporization rate of 1kg/min was designed. The result shows that, the weight of the whole system is only 393.55 kg, and the input power is only 5.45 kW, which meets the design requirements of the system under high-altitude working conditions.