本文介绍了一种近似计算条形翅片管换热器空气侧换热系数和流动阻力的方法,换热系数是用条形和平翅片处换热系数按面积加权平均的方法来求得的。这种计算方法与试验结果比较吻合。通过对国内生产的条形翅和平翅片(进口边缘有波纹)管的试验表明,在相同迎面风速(w_f=1.8m/s)和片距下,条形翅片管换热器的传热系数比平翅片管换热器约高50%,但相应的流动阻力仅增加25～30%。因此,对条形翅片管换热器可采用较大的片距(每10mm4～5片)或比平片更少的排数,这样不仅可以在相同的空气阻力下传过更多的热量,而且还可以大大地节约翅片材料。 In this paper, a method of approximate calculation of air-side heat transfer coefficient and flow resistance of strip fin-and-tube heat exchangers is presented. The heat transfer coefficient is calculated by the area weighted average method using the heat transfer coefficients at the strip and flat fins . This calculation method is consistent with the test results. Experiments on dome-finned and flat finned (imported rippled) tubes produced domestically show that the heat transfer of strip fin tube heat exchangers at the same head face velocity (w_f = 1.8m / s) The coefficient is about 50% higher than flat-fin tube heat exchangers, but the corresponding flow resistance increases by only 25-30%. Therefore, the strip fin tube heat exchanger can use a larger film pitch (per 10mm4 ~ 5) or less than the number of rows of flat, so not only in the same air resistance through more heat , But also can greatly save the fin material.