IFC公式求取过热蒸汽密度

1、IFCIFC公公式式直直接接计计算算过过热热蒸蒸汽汽密密度度查询条件：温度、压力（表压力）260T()0.7p表(MPa)0.101325当地大气压(MPa)0.801325p绝(MPa)0.823652093Tr0.036226266pr0.70157099p11.14409306x3.34478281密度(kg/m3)计算结果计算过程查询条件：温度、压力（表压力）编制说明1、根据IFC公式直接计算过热蒸汽密度，只要在绿色单元格输入数据，就可在红色单元格显示最终过热蒸汽数据。2、只适用于计算过热蒸汽密度IFCIFC公公司司直直接接计计算算过过热热蒸蒸汽汽密密度度查询条件：温度、压力（表压力）

2、常用系数260T()22.12533.15T(K)647.30.7p表(MPa)0.003170.101325大气压(MPa)4.2603211480.801325p绝(MPa)（绝对压力）0.0667037590.823652093Tr1.3889838010.036226266pr0.083901043280.70157099p10.026146708931.14409306x-0.0337343945396.86403917I1Tr/pr0.45209189040.383837916B11x130.10690366142.080085727B12x13-0.59753367070.068

3、2519352pr(B21x18+B22x2+B23x)-0.088475358040.0216942683pr2(B31x18+B32x10)0.5958051609-0.0033994874pr3(B41x25+B42x14)-0.51593033730.0002336455pr4(B51x32+B52x28+B53x24)0.20750211226.347234170E-086pr-7(B81x24+B82x14)(pr-6+BB81x54+BB82x27)-20.11906102712.190954322E-1311(pr/p1)10(B90+B91x+B92x2+B93x3+B94x

4、4+B95x5+B96x6) -0.098671741320.0000313884pr-5(B61x12+B62x11)（pr-4BB61x14)-20.16839988033.10412E-055pr-6(B71x24+B72x18)（pr-5BB71x19)-2-0.0580943800194.31327268vr(m3/kg)0.0065523901263.34478281密度(kg/m3)：=（0.00317vr）-10.0005770218649193.6587558-1388.5224254126.607219计算结果计算过程-6508.211677常用系数查询条件：温度、压力（表

5、压力）5745.984054-2693.088365523.57186230.40060739480.08636081627-0.85323229210.346020886115.74373327-34.1706197819.31380707pc(MPa)Tc(K)vc(m3/kg)I1B11B12B21B22B23B31B32B41B42B51B52B53B61B62B71B72B81B82B90B91B92B93B94B95B96BB61BB71IFCIFC公公司司直直接接计计算算过过热热蒸蒸汽汽密密度度常用系数BB81BB82l0l1l2IFCIFC公公式式直直接接计计算算过过热热蒸蒸汽

6、汽密密度度查询条件：温度、压力（表压力）常用系数150T()22.12423.15T(K)647.30.4p表(MPa)0.003170大气压(MPa)4.2603211480.4p绝(MPa)（绝对压力）0.0667037590.653715433Tr1.3889838010.018083183pr0.083901043281.659508768p10.026146708931.302558689x-0.03373439453154.012584I1Tr/pr0.45209189042.072598662B11x130.10690366143.069651567B12x13-0.597533

7、67070.3535430772pr(B21x18+B22x2+B23x)-0.088475358040.053145743pr2(B31x18+B32x10)0.5958051609-0.0105603114pr3(B41x25+B42x14)-0.51593033730.0011133495pr4(B51x32+B52x28+B53x24)0.20750211224.353246444E-086pr-7(B81x24+B82x14)(pr-6+BB81x54+BB82x27)-20.11906102718.202916189E-1911(pr/p1)10(B90+B91x+B92x2+B9

8、3x3+B94x4+B95x5+B96x6)-0.098671741320.0000244364pr-5(B61x12+B62x11)（pr-4BB61x14)-20.16839988034.76139E-055pr-6(B71x24+B72x18)（pr-5BB71x19)-2-0.05809438001148.4730198vr(m3/kg)0.0065523901262.124678367密度(kg/m3)：=（0.00317vr）-10.0005770218649193.6587558验证数据-1388.5224250.47066查表得到的比容v(m3/kg)4126.6072192.

9、124675987密度(kg/m3)：=v-1-6508.2116770.112001521IFC公式与查表的误差(十万分之几)5745.984054-2693.088365计算结果计算过程523.5718623常用系数查询条件：温度、压力（表压力）0.4006073948数据验证说明0.086360816271、为了验证根据IFC公式直接计算过热蒸汽密度是否准确与否，所计-0.8532322921算出的密度数据直接与密度表进行比较；0.34602088612、因为密度表中是用绝对压力查表，为了方便与密度表比较，计算公式中15.74373327大气压取“0”-34.170619783、一般的查

10、表得出的数据，是比容 。密度为其倒数。19.313807074、验证数据单元格，已编制了IFC公式与查表的误差。pc(MPa)Tc(K)vc(m3/kg)I1B11B12B21B22B23B31B32B41B42B51B52B53B61B62B71B72B81B82B90B91B92B93B94B95B96BB61BB71IFCIFC公公式式直直接接计计算算过过热热蒸蒸汽汽密密度度常用系数BB81BB82l0l1l2验验 证证 数数 据据温度值T()p绝(MPa)计算出密度查表得到的比容 查表得到的计算出密度IFC公式与查表的误差(十万分之几)1500.42.1246783670.470662

11、.1246759870.1120015212000.52.3531749220.424962.3531626510.5215031522500.52.1077858090.474432.107792509-0.31786058225014.2964872420.232754.2964554240.74055243525028.9726753490.1114498.972713977-0.430502819250314.174186510.07055114.174143530.3032148443000.51.9135904870.522581.9135826090.41168155130013.8763309290.257983.8762694781.58531060130027.9680664260.1255017.9680639990.030449997300312.321537250.08115912.321492380.3641707154000.51.6203175260.617161.620325361-0.48359253140013.2627799260.3