翅片套铜管式换热器换热面积自动计算

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翅片厚度δ=0.1mm翅片 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 面粗糙度系数m水平间距S1=22mm竖直间距S2=19.05mm翅片间距Sf=1.7mm亲水膜0.007非亲水膜0.0113排数N1=3排列数N2=30列换热器长度L1.7m换热器深W(m)0.05715换热高H(m)0.66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单位长度翅片面积为：Ff=0.4318661341㎡/m单位长度翅片间管外表面积为：Fb=0.0240560941㎡/m单位长度翅片管总面积Ft=0.4559222282㎡/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℃tm温度下的空气密度ρ1.0955W/deq19.92空气出口温度t=43℃平均温度tm=39℃kg/m³传热温差ΔT=10.5℃传热系数K：25-35W/(㎡*K)取K=25W/(㎡*K)自由输入K2627282930313233343540Q19.0419.7720.5021.2321.9722.7023.4324.1624.9025.6329.292Q38.0839.5441.0042.4743.9345.4046.8648.3349.7951.2558.58换热量Q=18.31KW冷凝器数量N=2个总换热量Q0=36.61KWK252627282930313233343540可配制冷量Q'14.2814.8515.4215.9916.5617.1317.7018.2818.8519.4219.9922.852Q’28.5629.7030.8431.9833.1334.2735.4136.5537.6938.8439.9845.69K252627282930313233343540冷凝器风量G(m³/H)150391564016242168431744518046186481924919851204532105424062迎面风速(m/s)1.861.942.012.082.162.232.312.382.462.532.612.98最窄截面风速Wmax3.143.273.393.523.643.773.894.024.144.274.405.02(ρ*Wmax)1.78.178.739.319.9010.5111.1311.7712.4213.0913.7714.4718.16非亲水膜阻力（Pa)18.019.320.621.923.224.626.027.428.930.432.040.1亲水膜阻力（Pa)11.211.912.713.514.415.216.117.017.918.819.824.8已知冷凝器外型尺寸计算换热面积计算直管外径d0=7.94mm直管壁厚t=0.35mm翅片厚度δ=0.1mm翅片表面粗糙度系数m水平间距S1=22mm竖直间距S2=19.05mm翅片间距Sf=1.7mm亲水膜0.007非亲水膜0.0113排数N1=2排列数N2=30列换热器长度L1.4m换热器深m0.0381换热高m0.66开始计算翅片管外径db=8.14mm铜管内径di=7.24mm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当量直径deq=2.868822768mm单位长度翅片面积为：Ff=0.4318661341㎡/m单位长度翅片间管外表面积为：Fb=0.0240560941㎡/m单位长度翅片管总面积Ft=0.4559222282㎡/m翅片管肋化系数β=20.05499473换热器传热面积F=38.29746717㎡对数温差计算环境温度Tao=35℃冷凝温度Tk=50℃tm温度下的空气密度1.0955W/deq13.28空气出口温度t=43℃平均温度tm=39℃kg/m³传热温差ΔT=10.5℃传热系数K：25-35W/(㎡*K)取K=25W/(㎡*K)自由输入K2627282930313233343540Q10.4510.8511.2611.6612.0612.4612.8613.2713.6714.0716.08冷凝器符合2Q20.9021.7122.5123.3224.1224.9225.7326.5327.3428.1432.16换热量Q=10.05KW冷凝器数量N=2个总换热量Q0=20.10KWK252627282930313233343540可配制冷量Q'7.848.158.478.789.099.419.7210.0310.3510.6610.9712.54内机负荷2Q’15.6816.3116.9317.5618.1918.8119.4420.0720.6921.3221.9525.08K252627282930313233343540冷凝器风量G(m³/H)825685878917924795789908102381056810899112291155913210迎面风速(m/s)1.241.291.341.391.441.491.541.591.641.691.741.99最窄截面风速Wmax2.092.182.262.342.432.512.602.682.762.852.933.35(ρ*Wmax)1.74.104.384.674.975.285.595.916.246.576.917.269.11非亲水膜阻力（Pa)6.06.56.97.37.88.28.79.29.710.210.713.4亲水膜阻力（Pa)3.74.04.34.54.85.15.45.76.06.36.68.3根据干球和湿球温度计算空气状态参数温度范围0-200℃ 标准 excel标准偏差excel标准偏差函数exl标准差函数国标检验抽样标准表免费下载红头文件格式标准下载 大气压力B101325Pa空气干球t(℃)湿球ts(℃)干球K氏温度相对湿度φ%焓值h（KJ/Kg)含湿量d(g/kg)密度ρ（kg/m³)比体积v=1/ρ露点温度t1(℃）饱和水蒸气压力Pdb水蒸汽压力Pqln(Pqb)ln(Pqb*)湿球Kts下饱和水蒸气压力Pdb*进风温度2719300.1546.6%54.0410.501.1690.85614.623608.071681.568.197.71292.152222.23出风温度1615289.1590.1%42.3210.341.2130.82414.391838.451656.577.527.45288.151724.15平均温度21.517294.6563.8%47.9610.331.1910.84014.382593.931655.227.867.58290.151959.35蒸发器计算制冷量Q=28KW风量G=7000m³/H直管外径d0=7.94mm直管壁厚t=0.31mm翅片厚度δ=0.1mm翅片表面粗糙度系数m水平间距S1=22mm竖直间距S2=19.05mm翅片间距Sf=1.8mm亲水膜0.007非亲水膜0.0113排数N1=3排列数N2=28列换热器长度L1.4m换热器深W(m)0.05715换热高H(m)0.616开始计算翅片管外径db=8.14mm铜管内径di=7.32mm当量直径deq=3.03mm单位长度翅片面积为：Ff=0.41㎡/m绿色为输入参数，黄色为自动计算参数，单位长度翅片间管外表面积为：Fb=0.02㎡/m单位长度翅片管总面积Ft=0.43㎡/m翅片管肋化系数β=18.80换热器传热面积F=50.80㎡迎面风速m/S=2.25最窄截面风速Wmax3.79m/S空气阻力（亲水膜）Pa=16.78空气阻力（非亲水膜）Pa=27.09蒸发温度t0=7℃传热温差ΔT=13.78℃传热系数K40.01W/(㎡*K）