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本文阐述了近年来对制冷剂在蒸发管内蒸发时强化传热的研究工作进展。不仅列出了纯制冷剂(R22)在同螺旋槽管、交叉槽管和人字形槽管内,在不同质量流速下的表面传热系数,还列出了替代混合制冷剂R407C在强化蒸发管中的表面传热系数。文中还说明了各种强化蒸发管的传热机理。
In this paper, the research progress of heat transfer enhancement during evaporation of refrigerant in evaporating tubes in recent years is expounded. Not only lists the surface heat transfer coefficient of pure refrigerant (R22) in the same spiral groove tube, cross groove tube and herringbone groove tube at different mass flow rates, but also lists the alternative mixed refrigerant R407C in the enhanced evaporation tube The surface heat transfer coefficient. The article also shows a variety of enhanced heat transfer tube evaporation mechanism.