The results of numerical calculation show that: the heat transfer coefficient on shell-side of the spirally twisted flat-tube heat exchanger increases with increasing the Reynolds number,and decreases with increasing the S/de value of said twisted tube;

• 数值计算结果表明:螺旋扭曲扁管换热器壳程的传热系数随雷诺数的增大而增大,随螺旋扭曲扁管的S/de值增大而减小; 壳程压力降随雷诺数的增大而增大,随螺旋扭曲扁管的S/de值的增大而减小;