冷藏/冷冻车辆用蒸发器空气侧传热及压降试验研究  

An experimental study of air-side heat transfer and pressure drop of evaporator for refrigerated/frozen vehicles

作　　者：王振环 崔然成 权宁哲 WANG Zhenhuan;CHOI Younsung;KWOMN Youngchul(Mechanical Engineering,Binzhou University,Binzhou 256600,China;Korea Refrigeration and Air-conditioning Assessment Center,Hwaseong-si,Gyeonggi-do 18608,Korea;Mechanical Engineering,SunMoon University,Asan-si,Chungcheongnam-do 31460,Korea)

机构地区：[1]滨州学院机电工程学院,山东滨州256600 [2]韩国制冷空调认证中心,韩国京畿道华城18608 [3]韩国鲜文大学机械ICT融合工程学院,韩国天安牙山31460

出　　处：《流体机械》2022年第8期8-14,共7页Fluid Machinery

基　　金：国家自然科学基金项目(52075047);山东省重点研发计划项目(2018GNC112003);博士科研启动基金项目(2018Y13,2019Y39);国家安全生产重大事故防治关键技术科技项目(shandong-0023-2014AQ)。

摘　　要：为了研究冷藏/冷冻车辆用制冷机组蒸发器不同参数对换热性能的影响,采用空气焓差法测试了蒸发器空气侧制冷能力和压降性能,并且通过分别改变蒸发器翅片形状(4种)、翅片节距(5种)、管排数(4种)以及空气流量(6种)对其进行了试验研究。结果表明:同时考虑制冷能力和压降,波纹状翅片制冷能力较强且压降增加率最低,约为百叶窗翅片的20%;同时考虑到蒸发器空气侧制冷能力和压降性能,当翅片形状为波纹状,翅片节距为5 mm,管排数为6排,空气流量为40 m3/min时,蒸发器的性能最佳。研究结果对冷藏/冷冻车辆用制冷机组蒸发器应用具有一定的参考意义。In order to study and determine the effects of different parameters on the heat transfer performance of the refrigeration unit evaporator for refrigerated/frozen vehicles,the cooling capacity and pressure reduction performance on air side of the evaporator were measure by air enthalpy difference method,and the performance of the evaporator was studied experimentally by changing the fin shape(4 types),fin pitch(5 types),number of tube rows(4 types)and air flow rate(6 types).The experimental results show that the increase rate of cooling capacity compared to pressure drop is the lowest for corrugated fins,which is about 20%of louvered fins;Considering the cooling capacity and pressure drop performance on air side of the evaporator,when the fin shape is wavy,the fin pitch is 5 mm,the number of tube rows is 6,and the air flow rate is 40 m3/min,the performance of the evaporator is the best.The research results have certain reference significance for the application of refrigeration unit evaporators for refrigerated/frozen vehicles.

关 键 词：蒸发器 制冷能力 传热 压降 制冷机组 

分 类 号：TH12[机械工程—机械设计及理论] TB61[一般工业技术—制冷工程] TB63