Yamatake HGC303, Руководство пользователя

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Yamatake Corporation Appendix
Model HGC303 - Heat Value Gas Chromatograph A-11
4) Density (kg/m
3
)
Ideal gas density, Density (ideal)
= [sum (xj
×
Mj) + xhelium
×
Mhelium]
×
p2 / (R
×
(t2 + 273.15))
Real gas density, Density (real) = Density (ideal) / Zmix
where,
xj = mole fraction for component j
xhelium = mol fraction for Helium
Mj
= molar mass for component j (ISO6976 Table 1)
Mhelium= molar mass for Helium (ISO6976 Table 1)
p2
= metering reference pressure = 101.325 (kPa)
R = molar gas constant = 8.31451(J / (mol
×
K))
t2 = metering reference temperature ( ° C)
5) Relative density
Ideal gas relative density, Relative density (ideal)
= [sum (xj
×
Mj) + xhelium
×
Mhelium] / Mair
Real gas relative density, Relative density (real)
= Relative density (ideal)
×
Zair / Zmix
where, xj = mole fraction for component j
xhelium = mol fraction for Helium
Mj = molar mass for component j (ISO6976 Table 1)
Mhelium = molar mass for Helium (ISO6976 Table 1)
Mair
= molar mass for Air (ISO6976 Table 1)
Zair = compression factor for Air at (t2, p2) (ISO6976 Table 1)
6) Wobbe Index (MJ/m
3
)
Ideal gas Wobbe index, Wobbe index (ideal)
= SCV (ideal) / sqrt (Relative density (ideal))
Real gas Wobbe index, Wobbe index (real)
= SCV (real) / sqrt (Relative density (real))