A revised correlation based on heat transfer model of slug flow in mini/micro-channels

作者：Li, Xuejiao; Jia, Li^*; Yin, Liaofei; An, Zhoujian

来源：Heat and Mass Transfer, 2018, 54(1): 25-36.

DOI：10.1007/s00231-017-2088-2

• SILICON MULTI-MICROCHANNELS
• 2-PHASE FLOW
• TRANSFER COEFFICIENT
• GENERAL CORRELATION
• ELONGATED BUBBLE
• DIAMETER TUBES
• PRESSURE-DROP
• MASS FLUX
• PART II
• EVAPORATION

As flow boiling in mini/micro-channel, slug flow was corresponding to the optimal heat transfer ability owing to the evaporation of thin liquid film. Based on the heat transfer mechanism of liquid film evaporation, a simplified heat transfer model of slug flow was proposed. Li-Wu heat transfer correlation (Int J Heat Mass Transf 53(9): 1778aEuro1787, 2010) was revised by introducing evaporation parameter, C (e) . With the evaporation parameter, C (e) , the revised correlation predicted the slug flow database with MAE (Mean Absolute Error) 25.14%, which improved the prediction accuracy remarkably.

• 出版日期2018-1
• 单位北京交通大学