化工学报2026，Vol.77Issue(5)：2450-2460,11.DOI:10.11949/0438-1157.20251257
压力波强化横掠管束传热实验研究
Experimental study of heat transfer enhancement by pressure waves in cross flow tube bundles
摘要
Abstract
An experimental study was conducted to investigate the enhancement of convective heat transfer in a crossflow tube bundle under continuous pressure waves using a diaphragm-based pressure wave generator.The effects of charging time,exhaust time,and pressure reducing valve outlet pressure on pressure wave characteristics and heat transfer performance were analyzed,and the energy efficiency was evaluated.The results show that the transient flow induced by high-speed gas impacting the diaphragm and its resulting water hammer effect influence pressure wave excitation.A shorter charging time helps form high-intensity pulse waves,while an appropriate exhaust time can avoid residual gas weakening the water hammer effect.A combination of 20 ms charging time and 80 ms exhaust time is relatively suitable.The pressure wave amplitude first increases and then decreases with increasing pressure reducing valve outlet pressure.The average heat transfer coefficient of the tube bundle increases significantly by 50.13％at 150 kPa.The enhancement effect is spatially dependent,with more significant enhancement closer to the wave source,and better on the front side of the tube bundle than on the back side.Energy efficiency analysis shows an energy efficiency ratio of 8.75 at 150 kPa,demonstrating good energy economy and engineering application potential.This study provides experimental basis for the engineering application of periodic pressure waves in enhancing tube bundle heat transfer.关键词
传热/对流/流动/压力波/强化/管束Key words
heat transfer/convection/flow/pressure wave/enhancement/tube bundle分类
能源科技引用本文复制引用
赵林坤,郭希健,邓建强..压力波强化横掠管束传热实验研究[J].化工学报,2026,77(5):2450-2460,11.基金项目
国家自然科学基金项目(21978227) （21978227）
