Natural gas properties

• compression factor calculation according to AGA8 (edition 1985 and 1992) detailed and gross methods, AGA NX19, GOST 30319 (edition 1996 and 2015)
• heating value, relative density and base density calculation according to ISO 6976 (edition 1995 and 2015), AGA5, GPA 2172, GOST 30319
• dynamic viscosity calculation according to GOST 30319, GOST R 8.770
• isentropic exponent calculation according to ISO 20765-1, GOST 30319
• Joule-Thomson coefficient calculation according to ISO 20765-1, ISO TR 9464
• Speed of sound calculation according to ISO 20765-1, GOST 30319
   

Gas composition for the natural gas properties calculation can be:

• read on-line from a gas chromatograph,
• downloaded from a supervisory system, or
• set as fixed value

Industrial gas properties

Properties calculation for most popular industrial gases (air, nitrogen, oxygen, argon, carbon-dioxide, carbon-monoxide, hydrogen, propane, ammonium, ethylene, other gases) are included.

Crude oil & refined product properties

Crude oil, refined products, lubricating oil and NGL & LPG temperature and pressure volume correction factor calculation includes:

• ASTM D1250/API 2540 (1980) Tables 23, 24, 53, 54
• API MPMS Chapter 11.1 Tables 23, 24, 53, 54, 59, 60
• API MPMS Chapter 11.2.1, 11.2.1M and 11.2.2, 11.2.2M.
• GPA TP-27

Water and steam properties

Water and water steam properties are accurately calculated according to IAPWS-IF97 publication.

Ethanol properties

Ethanol properties are calculated according to OIML R22 recommendation.  Revised formula by Bettin H., Spieweck F. is implemented.