摘要
通过实验诊断和能耗分析研究了喷雾结冰喷嘴的性能和喷雾结冰凝固潜热的回收。研究结果发现,气泡雾化喷嘴在低能耗下能提供颗粒平均直径较小且尺寸分布相对集中的液雾;喷雾结冰过程中水滴释放的凝固潜热,以对流方式将周围的空气加热,环境温度越低冷空气温升幅度越大,喷雾结冰效率越高,提高喷雾量将有助于凝固潜热的回收;研究结果表明将喷雾结冰凝固潜热回收过程与空气源热泵系统耦合,能明显提高空气源热泵低温运行的能效比,拓展了空气源热泵的温度适应范围和凝固热的利用。
The performance of the effervescent atomizer and the recovery of latent heat of spray freezing were studied by experimental diagnosis and energy consumption analysis. It was found that the relatively small and concentrated distribution liquid particles at low energy consumption can be provided by the effervescent atomizer. The latent heat released by droplets during spray freezing will increase the temperature of the environment air by the convection. The lower the environment temperature was,the greater the temperature of the cold air was and the higher the spray freezing efficiency was. Increasing the spray volume will help to recover the latent heat of solidification. The research results showed that the energy efficiency ratio of the air source heat pump at low temperature was obviously improved by the coupling of the spray freezing solidification latent heat recovery process with the air source heat pump system. The research results can expand the temperature adaptation range of the air source heat pump and the utilization of the solidification heat.
作者
李培
王越
刘轩臣
解珺
裴娜
刘联胜(指导)
王恩宇
LI Pei;WANG Yue;LIU Xuan-chen;XIE Jun;PEI Na;LIU Lian-sheng;WANG En-yu(Hebei University of Technology,Tianjin 300401,China;Industrial Technology Research Institute of HEBUT(Zhangbei),Zhangbei 076450,Hebei,China)
出处
《建筑节能（中英文）》
2021年第2期103-107,共5页
Building Energy Efficiency
基金
天津市科技计划项目(18YFCZZC0025)
河北工业大学(张北)产业技术研究院项目(ZBYJ201902)。
关键词
喷雾结冰
凝固潜热
气泡雾化喷嘴
空气源热泵
能效比
spray freezing
latent heat of solidification
effervescent atomizer
air source heat pump
energy efficiency ratio
