.432.040.117.017.918.819.824.8已知冷凝器外型尺寸计算换热面积及验证其它参数直管外径d0=7.94mm直管壁厚t=0.31mm水平间距S1=22mm竖直间距S2=19.05mm排数N1=3排列数N2=30列开始计算翅片管外径db=8.14mm铜管内径di=7.32mm当量直径deq=2.868822768mm单位长度翅片面积为:Ff=0.431866134㎡/m单位长度翅片间管外表面积为:Fb=0.024056094㎡/m单位长度翅片管总面积Ft=0.455922228㎡/m翅片管肋化系数β=19.83581446换热器传热面积F=69.75610092㎡对数温差计算环境温度Tao=35℃冷凝温度Tk=50℃空气出口温度t=43℃平均温度tm=39℃传热温差ΔT=10.5℃传热系数K:25-35W/(㎡*K)取K=25W/(㎡*K)K2627282930Q19.0419.7720.5021.2321.972Q38.0839.5441.0042.4743.93换热量Q=18.31KW冷凝器数量N=2个总换热量Q0=36.61KWK2526272829可配制冷量Q'14.2814.8515.4215.9916.56翅片厚度δ=0.1mm翅片表面粗糙度系数m翅片间距Sf=1.7mm亲水膜0.007非亲水膜换热器长度L1.7m换热器深W(m)0.05715换热高H(m)绿色为输入参数,黄色为自动计算参数,蓝色为手动输入可变参数tm温度下的空气密度ρ1.0955W/deq19.92kg/m³自由输入31323334354022.7023.4324.1624.9025.6329.2945.4046.8648.3349.7951.2558.5830313233343517.1317.7018.2818.8519.4219.990.01130.664022.85