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GB/T 17747.2-2011: Natural gas -- Calculation of compression factor -- Part 2: Calculation using molar-composition analysis
Status: Valid GB/T 17747.2: Evolution and historical versions
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| GB/T 17747.2-2011 | English | 579 |
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Natural gas -- Calculation of compression factor -- Part 2: Calculation using molar-composition analysis
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GB/T 17747.2-2011
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| GB/T 17747.2-1999 | English | 919 |
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Natural gas--Calculation of compression factor--Part 2: Calculation using molar-composition analysis
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GB/T 17747.2-1999
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Basic data | Standard ID | GB/T 17747.2-2011 (GB/T17747.2-2011) | | Description (Translated English) | Natural gas -- Calculation of compression factor -- Part 2: Calculation using molar-composition analysis | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E24 | | Classification of International Standard | 75.060 | | Word Count Estimation | 25,298 | | Date of Issue | 2011-12-30 | | Date of Implementation | 2012-06-01 | | Older Standard (superseded by this standard) | GB/T 17747.2-1999 | | Quoted Standard | GB 3102.3-1993; GB 3102.4-1993; GB/T 11062-1998; GB/T 17747.1-2011 | | Adopted Standard | ISO 12213-2-2006, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 23 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the gas containing artificial blends a mixture of natural gas and other similar state exists only when the gas compressibility factor calculation methods. This calculation method is detailed in known gas composition and molar fraction related pressure and temperature of gas and the compression factor. This calculation method is also known as AGA8-92DC calculation method is mainly used in the Gas Transmission and Distribution of normal pressure p and temperature T within the tube gas, calculated uncertainty about 0. 1%. Also available in a wider range of pressure and temperature, for a wider range of gas composition, but the calculation of uncertainty will increase (see Appendix E). For the calculation methods and application areas range of applications more detailed explanation see GB/T 17747. 1. | GB/T 17747.2-2011: Natural gas -- Calculation of compression factor -- Part 2: Calculation using molar-composition analysis
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Natural gas Calculation of compression factor Part 2. Calculation using molar-composition analysis
ICS 75.060
E24
National Standards of People's Republic of China
Replacing GB/T 17747.2-1999
Calculation of compression factor of natural gas
Part 2. The calculation of molar composition
Part 2. Calculationusingmolar-compositionanalysis
(ISO 12213-2.2006, MOD)
Issued on. 2011-12-30
2012-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Calculation Method 1
Appendix A (normative) Symbols and units 7
Appendix B (Normative Appendix) AGA8-92DC calculation method described 9
Annex C (normative) Calculation Example 16
Annex D (normative) pressure and temperature conversion factor 17
Annex E (informative) effect wider range of applications 18
Foreword
GB/T 17747 "Gas Calculation of compression factor" includes the following three parts.
--- Part 1. Introduction and guidelines;
--- Part 2. The calculation of molar composition;
--- Part 3. Calculation using physical properties.
This section is Part 2.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 17747.2-1999 "gas - Calculation of compression factor - Part 2. calculation of molar composition."
This section compared with the GB/T 17747.2-1999 The main changes are as follows.
--- According to ISO 12213.2.2006 modified 1 "minors and trace List" table of contents;
--- Modify the diagram symbols and legend;
"±" number --- Remove the body of the uncertainty of the value before.
This section uses redrafted Law Amendment uses ISO 12213-2.2006 "gas - Calculation of compression factor - Part 2. Moore
Composition analysis. "
This part of ISO 12213-2.2006 The main differences are.
--- Chapter 2 normative references, and some apply to international standard formulation modified to apply to our standard formulation, ISO
Replace the standard content of the corresponding national standards, the remaining chapters corresponding to the content is modified accordingly;
--- 4.4.1 and 4.4.2 will be increased by high heat and relative density of natural gas under the terms of the standard reference conditions corresponding values
Note;
--- The contents of the note B.2.1.1 moved to the last paragraph of 4.3;
--- Remove the body "±" number of Uncertainty value before;
--- Delete ISO standard foreword, preface to redraft this part;
--- Delete the contents of Chapter 5;
Appendix F --- deleted and references;
This part of the National Gas Standardization Technical Committee (SAC/TC244) centralized.
This section drafted by. China Southwest Oil & Gas Field Branch, Research Institute of Petroleum, China Southwest Oil and Gas Field Branch Petroleum Safety and Environmental Protection
And Technical Supervision Institute.
The main drafters of this section. Luo Qin, Xuwen Xiao, Zhoufang Qin, Huang Liming, Chang Hong Kong, Chen Geng Liang, Liwan Jun, Zeng Ping, Fu Chiu Ying, Chenrong Song,
Qiufeng Chun.
Calculation of compression factor of natural gas
Part 2. The calculation of molar composition
1 Scope
This section GB/T 17747 provides for natural gas, including labor and other similar blend a mixture of gaseous state only memory
When the compression factor calculation method.
This calculation method is composed of a known gas mole fraction of detailed and relevant pressure and temperature to calculate the gas compressibility factor.
This calculation method is also known as AGA8-92DC calculation method is mainly used in pressure p and temperature T Gas Transmission and Distribution of normal
Pipe gas range, calculation of uncertainty of about 0.1%. Also available in a wider range of pressure and temperature for a wider composition range of gas
Body, but the results will increase the uncertainty (see Appendix E).
About the scope of application of the calculation methods and applications described in more detail, see GB/T 17747.1.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB 3102.3-1993 Quantities and units of mechanics
Quantities and units of GB 3102.4-1993 Thermal
GB/T 11062-1998 natural gas calorific value, density, relative density and Wobbe index calculation method (ISO 6976.1995,
NEQ)
GB/T 17747.1-2011 Gas Calculation of compression factor - Part 1. Introduction and guidelines (ISO 12213-1.2006,
MOD)
3 Terms and Definitions
Terms and definitions GB/T 17747.1 given apply to this document. Meaning and unit symbol appears in the text represented Mitsuke
Record A.
4 Calculation
4.1 Principle
AGA8-92DC equation calculation method used is based on the concept. the nature of the capacity of pipeline natural gas composition characterized by
And calculations. Composition, pressure and temperature are used as input data calculation method.
This calculation method requires detailed molar gas composition analysis. The analysis included more than 0.00005 mole fractions of all components.
For a typical gas pipe, assay components including carbon number up to all of C7 or C8 hydrocarbons, and N2, CO2 and He. Other gases, points
Analysis of steam need to be considered such as H2O, H2S and C2H4 and other components. Artificial gas, H2 and CO may also be an important component of the analysis.
4.2 AGA8-92DC equation
AGA8-92DC calculation method AGA8 detailed characteristic equation (expressed as the following equation AGA8-92DC, see GB/T 17747.1);
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