流体机械2025，Vol.53Issue(3)：1-8,88,9.DOI:10.3969/j.issn.1005-0329.2025.03.001
扩散焊混合式换热器热工性能试验研究
Study on the thermal performance test of diffusion-bonded hybrid heat exchangers
摘要
Abstract
This study investigates the thermal performance of diffusion-bonded hybrid heat exchangers through wind tunnel experiments and numerical simulations.Comparative analysis was conducted on the adaptability of heat transfer and friction factor correlations obtained by different methods for stainless steel plain fins.Results indicate that the thermal load of the heat exchanger increases with rising air-side velocity,while the pressure loss grows more significantly.When air velocity increases from 8.1 m/s to 28.2 m/s,the thermal load increases by 2.9 times,and the pressure loss escalates by 9.82 times.Within the air-side Reynolds number range of 2 440≤Re≤8 502,the theoretical thermal load calculated using statistically derived Colburn factor correlations deviates by 0.34%～16.55%from numerical and experimental results.Theoretical pressure loss predictions show less than 3%deviation from measured values.The study verifies the accuracy of the heat transfer/friction factor correlations and numerical models,providing practical guidance for thermal design of single-phase diffusion-bonded hybrid heat exchangers.关键词
扩散焊/混合式换热器/板翅/zig-zag通道Key words
diffusion bonding/hybrid heat exchanger/plate-fin/zig-zag channel分类
能源科技引用本文复制引用
于改革,陈永东,韩冰川,刘孝根..扩散焊混合式换热器热工性能试验研究[J].流体机械,2025,53(3):1-8,88,9.基金项目
安徽省重点研究和开发计划基础领域项目(2023Z04020020) （2023Z04020020）
国机集团青年科技基金重点项目(QNJJ-ZD-2022-06) （QNJJ-ZD-2022-06）
