附录2 工质热物理性质参数

附录2 工质热物理性质参数

空气、纯燃气、燃气的焓和熵（其中T 为温度，f 为油气比）

空气的焓

642-33-64-95-136

-177

-0.30183674100.1048965210-0.232840570.4528843110 -0.31308477100.1134136210-0.2129808710 0.1636360010Hair T T T T T T T =?+???+????+????+??

纯燃气的焓

6323

54951261670.11152575100.3102020610 2.99611970.2793478820.187********.73499597100.150********.1251098410Hst T T e T T T T T ----=-?-??+?--?+??-??+??-??

燃气的焓

1f f Hgas Hair Hst

f +=+?其中为油气比。

空气的熵

4-342-43-74-115-156-3

Sair=(0.1048965210)ln(T 10)+0.8055864310+

(-465.6811T+ 0.6793T -4.174510T +1.417710T -2.555810T +2.290910T )10???????????????

纯燃气的熵

3-34-3323-74

-105-146Sst=(-0.3102020610)ln(T 10)-0.1780063310+10(5.992210T

-4.1902T +0.0025T -9.187410T + 1.807510T -1.459610T )

???????????????

燃气的熵

1f f Sgas Sair Sst

f +=+?其中为油气比。