花丝内插物强化竖直管内凝结换热的实验研究

摘要

Heat transfer coefficient and pressure drop were measured during condensation of steamin a vertical copper tube with and without Twined Wire Coil Inserts (TWCI), respectively.The Reynolds number range of experiment was 50～2100. Experiment results showed thatTWCI can evidently augment the heat transfer performance of steam condensation in tubewith less pressure drop increase.