摘要
提出一种新型的蒸发器,在平行流的联箱中设计带分液小孔的隔板,利用其气液分离作用对蒸发区的制冷剂干度进行调控.建立了分液蒸发器的计算模型,并进行实验验证,结果表明传热系数和压降的偏差在±30%以内.分析了不同管程分布对分液蒸发器性能的影响,结果表明管程对性能的影响较大.
A novel evaporator with a vapor-liquid separation is proposed. It can control quality of refrigerants by vapor-liquid separation that is accomplished by the baffle with small holes in the heads. A steady model of the vapor-liquid separation evaporator is established. The calculated heat transfer coefficient and pressure drop are verified by experiments with errors within ±30%. The effect of tube arrangements on the thermodynamic performance of the evaporator is analyzed by this program. The results show that the effect is significant.
作者
丁榕
李云海
陈健勇
陈颖
罗向龙
杨智
Ding Rong;Li Yun-hai;Chen Jian-yong;Chen Ying;Luo Xiang-long;Yang Zhi(School of Material and Energy,Guangdong University of Technology,Guangzhou 510006,China)
出处
《广东工业大学学报》
CAS
2018年第4期105-110,共6页
Journal of Guangdong University of Technology
基金
广东省科技计划项目(2016B020243010)
广州市科技计划项目(201704030108)
佛山市科技创新项目(2016AG101232)
关键词
分液蒸发器
管程分布
传热系数
压降
vapor-liquid separation evaporator
tube pass scheme
heat transfer coefficient
pressure drop
