高适应能力单相流体回路控温特性实验研究

未来新型卫星平台由于飞行任务的需要,不仅可能面临姿态大范围变化导致的外热流大幅度改变,而且内部热负荷也可能同时发生大范围变化,这两点因素都要求热控系统具有更强的适应能力。而传统的以被动热控为主、电加热为辅的热设计受制于各种资源的限制,适应能力具有明显的不足。鉴于此,文章针对六面体构型卫星,提出一种具有高适应能力的单相流体回路方案,并据此研制出地面原理样机试验台,对系统的关键性能温控特性进行了地面试验。整个瞬态实验过程中控温精度一般都在±0.5℃以内,最大波动也基本不超过±1℃。

Experimental Study on Temperature Control Performance of High Adaptive Single-phase Fluid Loop

Aecording to the requirements of flight task,the new type satellite platforms not only face the external heat flux varying in a wide range for the satellite's attitude alteration,but also face the indoor heat source altering wide range at the same time.The two factors require the thermal system to have high adaptive ability.As a result of the constraint of relative satellite resources,the conventional thermal design method,which means the passive thermal control plays a major role and the electric heater is...