论文部分内容阅读
在分析超低流阻板式换热器的流动及传热特性的基础上, 提出了减阻强化传热的概念, 并开发了一种新型的扰流件用来实现超低流阻板式换热器的减阻强化传热。通过实验研究给出了相应的传热及流阻关联式,发现只要操作的Re数选择适当, 就能够达到预期的效果, 为该板式换热器进一步用于大流量气气换热开辟了一种新途径。
Based on the analysis of the flow and heat transfer characteristics of the ultra-low flow resistance plate heat exchanger, a concept of drag reduction and enhanced heat transfer was proposed and a new type of spoiler was developed to realize ultra-low flow resistance plate heat exchange Drag reduction of the device to enhance heat transfer. The corresponding heat transfer and flow resistance correlation are given through experimental studies. It is found that the proper effect of the operation can be achieved as long as the Re number of the operation is properly selected, thus opening up a further application of the plate heat exchanger for the large-volume gas heat exchange New ways.