GB/T 17747.2-2011 (English Version) PDF

Standard No.: GB/T 17747.2-2011
Language: Chinese, Available in English version
Release Date: 2011
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 17747.2-2011
Replace: GB/T 17747.2-1999

Scope: This part of GB/T 17747 specifies the calculation method for the compression factor of natural gas, natural gas containing artificial admixtures and other similar mixtures that exist only in gaseous state. The calculation method is to use the detailed mole fraction composition of the known gas and the relative pressure and temperature to calculate the compressibility factor of the gas. This calculation method is also called AGA8-92DC calculation method, which is mainly applied to pipeline gas transmission within the range of pressure p and temperature T where gas transmission and distribution are normally carried out, and the calculation uncertainty is about 0.1%. It can also be used for gases with a wider composition range in a wider pressure and temperature range, but the uncertainty of the calculation results will increase (see Appendix E). See GB/T17747.1 for a more detailed description of the application scope and application fields of this calculation method.

GB/T 17747.2-2011 Referenced Document

GB 3102.3-1993 Quantities and units of mechanics
GB 3102.4-1993 Quantities and units of heat
GB/T 11062-1998 Natural gas--Calculation of calorific values, density, relative density and Wobbe index from composition
GB/T 17747.1-2011 Natural gas.Caculation of compression factor.Part 1: Introduction and guidelines

2011 GB/T 17747.2-2011 Natural gas.Calculation of compression factor.Part 2: Calculation using molar-composition analysis
1999 GB/T 17747.2-1999 Natural gas--Calculation of compression factor--Part 2: Calculation using molar-composition analysis