Abstract The present work reports the findings from an experimental study on the effect of bypass inlet on the performance of flow boiling of water in a copper mini/micro-channel of dimension 2.5 mm wide x 0.6 mm deep x 25 mm long. The mass fluxes considered were 430 kg/m2 s, 640 kg/m2 s and 850 kg/m2 s and the heat flux was in the range 87–548 kW/m2. The results show a significant increase in heat transfer coefficient with the increase in bypass ratio for the subcooled boiling conditions and the enhancement decreases with the increase in the exit quality. An increase in pressure drop was also noticed due to the bypass inlet. The study indicates potential for further investigation and optimization.

中文翻译：

---

旁路入口对微型/微通道流动沸腾影响的实验研究

摘要 目前的工作报告了旁通入口对尺寸为 2.5 毫米宽 x 0.6 毫米深 x 25 毫米长的铜微型/微通道中水的流动沸腾性能影响的实验研究结果。考虑的质量通量为 430 kg/m2 s、640 kg/m2 s 和 850 kg/m2 s，热通量范围为 87-548 kW/m2。结果表明，在过冷沸腾条件下，传热系数随着旁通比的增加而显着增加，并且随着出口质量的增加而降低。由于旁路入口，还注意到压降的增加。该研究表明有进一步调查和优化的潜力。