高速飞行器水蒸发器换热性能实验研究  

Experimental Study on Heat Transfer Performance of Water Evaporator for High Speed Aircraft

作　　者：张雅丹 马德胜 庞丽萍[2] Zhang Yadan;Ma Desheng;Pang Liping(Xinxiang Aviation Industry(Group)Co.,Xinxiang,453002;School of Aeronautical Science and engineering BUAA,Beijing,100191)

机构地区：[1]新乡航空工业(集团)有限公司,新乡453002 [2]北京航空航天大学航空科学与工程学院,北京100191

出　　处：《制冷与空调（四川）》2022年第6期809-812,834,共5页Refrigeration and Air Conditioning

摘　　要：水蒸发器是一种以消耗型工质水作为热沉,并且在低压环境下可以利用水的相变对高速飞行器机载电子设备进行冷却的一种换热设备。设计了一种内部单相通道采取偏置条形结构外部相变侧采取平直矩形翅片结构的水蒸发器。通过实验研究了三种质量流量(800kg/h、1510kg/h和2500kg/h)和低压7kPa下水蒸发器传热特性。在现有经验关联式的基础上修正了一个新的适用于低压沸腾的关联式,关联式最大误差为±10%。The water evaporator is a kind of heat exchange equipment which uses the consumable working medium water as the heat sink and uses the phase change of water to cool the airborne electronic equipment in the low-pressure environment. In this paper, a water evaporator with zigzag internal single-phase channel and flat rectangular fin external phase change side is designed.The pool boiling heat transfer characteristics of water with three mass flow rates(800kg/h, 1510kg/h and 2500kg/h) and low pressure of 7kPa were studied experimentally. Based on the existing empirical correlation, a new correlation for low-pressure boiling is modified in this paper. The maximum error of the correlation is ± 10%.

关 键 词：水蒸发器 矩形翅片 沸腾 关联式 

分 类 号：V24[航空宇航科学与技术—飞行器设计]