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1、饱和蒸汽密度计算公式r=Ap+Br-蒸汽密度，kg/m3 ；p -流体绝对压力，MPa ；A、B-系数和常数。不同压力段的密度计算式 压力范围MPa密度计算公式r/(kg/ m3)压力范围MPa密度计算公式r/(kg/ m3)0.100.32r1=5.2353p +0.08161.002.00r4=4.9008p +0.24650.320.70r1=5.0221p +0.15172.002.60r5= 4.9262p +0.19920.701.00r1=4.9283p +0.21732.过热蒸汽密度计算公式=1+F1(T) p +F2(T)p2+F3(T)p3P-压力,Pa;r-蒸汽密度 kg
2、/m3R-气体常数，R=461J/(kgK)T-温度,KF1(T)=(b0+b1f+b5f5)10-9F2(T)=(c0+c1f+c8f8)10-16F3(T)=(d0+d1f+d8f8)10-23b0= -5.01140 c0= -29.133164 d0= +34.551360b1= +19.6657 c1=+129.65709d1= +230.69622b2= -20.9137c2=-181.85576d2= -657.21885b3= +2.32488c3=+0.704026d3= +1036.1870b4= +2.67376c4=+247.96718d4= -997.45125b5=
3、 -1.62302c5=-264.05235d5= +555.88940c6=+117.60724d6= -182.09871c7=-21.276671d7= +30.554171c8=+0.5248023d8= -1.99178134f=103/T1、过热蒸汽密度IN:REAL;(*补偿前流量,t/h*)TE:REAL;(*介质温度,摄氏度*)PT:REAL;(*介质压力,Mpa*)MD:REAL; (*过热蒸汽密度*)K:REAL;(*系数*)OV:REAL;(*补偿后流量,t/h*)MD:=1/(0.00471*TE+1.286)/(10.194*PT+1)-0.0097+0.00001
4、32*TE);(*过热蒸汽密度计算公式*)OV:=K*SQRT(ABS(IN)*MD);2、给水密度高压给水密度公式（适用范围14.516.5MPa,100300度）：MD = -0.0023*T2 - 0.1974*T + 1006.4其中MD为密度Kg/m3，T为摄氏度低压给水密度公式（适用范围6MPa,50150度）：MD:=(1064.6448-0.96875*T)其中MD为密度Kg/m3，T为摄氏度IN:REAL;(*补偿前流量,t/h，已开方*)OV:REAL;(*补偿后流量,t/h*)OV:=K*IN* SQRT(ABS(MD);3、饱和水蒸气密度计算式（如果减温减压器后的蒸汽是
5、饱和水蒸气，适用此算法）压力范围 / MPa密度计算式，/(kg/m3)压力范围 / MPa密度计算式，/(kg/m3)0.100.320.320.700.701.001=5.2353P+0.08162=5.0221P+0.15173=4.9283P0.21731.002.002.002.604=4.9008P+0.24655=4.9262P+0.1992备注：以上压力P均为绝对压力（表压+大气压）饱和蒸汽密度表2010-10-28 08:39:43|分类： 杂项 |标签：密度压力蒸汽温度 |字号大中小订阅 最近好多人在邮箱里给我留言，说要蒸汽的密度焓值表 在这里我把手里有的几个表都发上来，话
6、不多说 见下表（单位：密度为kg/m3，压力P为MPa，温度t为）温度t 0 1 2 34压力P密度压力P密度压力P密度压力P密度压力P密度1000.10130.59770.10500.61800.10880.63880.11270.66010.11670.69521100.14330.82650.14810.85280.15320.81980.15830.90750.16360.93591200.19851.1220.20491.1550.21141.1900.21821.2250.22501.2611300.27011.4970.27831.5390.28671.5830.29531.62
7、70.30411.6721400.36141.9670.37182.0190.38232.0730.39312.1290.40422.1851500.47602.5480.48882.6130.50212.6790.51552.7470.52922.8161600.61813.2600.63393.3390.65023.4200.66663.5020.68353.5861700.79204.1230.81144.2180.83104.3160.85114.4150.87164.5151801.00275.1601.02595.2741.04965.3911.07375.5091.09835.6
8、291901.25516.3971.28296.5321.31116.6711.33976.8121.36906.9552001.55487.8641.58768.0251.62108.1881.65488.3541.68928.5222101.90779.5931.94629.7821.98529.9742.024810.172.065010.372202.319811.622.364511.842.409812.072.455912.302.502612.532302.797514.002.849114.252.901014.522.954614.783.008515.052403.347
9、716.763.407017.063.467017.373.527917.683.589717.99 温度t 5 6 7 8 9压力P密度压力P密度压力P密度压力P密度压力P密度1000.12080.71050.12500.72770.12940.75150.13390.77580.13850.80081100.16910.96500.17460.99480.18041.0250.18631.0570.19831.0891200.23211.2980.23931.3360.24671.3750.25431.4150.26211.4551300.31301.7190.32221.7660.331
10、71.8150.34141.8640.35131.9151400.41552.2420.42712.3010.43892.3610.45102.4220.46332.4841500.54332.8860.55772.9580.57233.0320.58723.1060.60253.1821600.70083.6710.71833.7580.73623.8470.75443.9370.77304.0291700.89244.6180.91374.7230.93534.8290.95734.9370.97975.0481801.12335.7521.14875.8771.17466.0031.20
11、106.3121.22786.2641901.39877.1001.42897.2481.45967.3981.49097.5511.52257.7062001.72428.6941.75978.8681.79599.0451.83269.2251.86999.4082102.105910.572.147410.772.189610.982.232311.192.275711.412202.550012.762.598113.002.646913.242.696313.492.746613.742303.063115.333.118515.613.174615.893.231616.183.289216.472403.652218.313.715518.643.779718.973.844819.303.910719.