CAJ | 학술논문

　　以低温多效蒸发海水淡化装置中的水平管降膜蒸发过程为研究对象，对海水水平管降膜蒸发的传热系数在不同蒸发温度、雷诺数（Re）等条件下沿圆周角方向的分布特征进行了实验研究。研究结果表明：海水作为实验流体时，传热系数随蒸发温度的升高而降低，随 Re的增大而呈现先升高，达到最大值后略微降低的趋势，随圆周角的增大而先减小后增大。
　　이저온다효증발해수담화장치중적수평관강막증발과정위연구대상，대해수수평관강막증발적전열계수재불동증발온도、뢰낙수（Re）등조건하연원주각방향적분포특정진행료실험연구。연구결과표명：해수작위실험류체시，전열계수수증발온도적승고이강저，수 Re적증대이정현선승고，체도최대치후략미강저적추세，수원주각적증대이선감소후증대。
The study is focused on the heat transfer process of the horizontal‐tube falling film evaporation in a low temperature and multiple effect distillation (MED ) desalination plant . The distribution characteristics of heat transfer coefficient of horizontal‐tube falling film evaporation for sea water along the tube circumference direction are investigated at different evaporation temperatures and different Reynolds numbers (Re) .Analytical results indicate that the growth of evaporation temperature is disadvantageous to the average heat transfer coefficient of sea water falling film evaporation .The heat transfer coefficient increases with the growth of Reynolds number until it reaches the maximum value ,and then a little decrease will appear in it . The local heat transfer coefficient decreases along the tube circumference angle ,but at the bottom of the tube ,it show s an increasing trend .