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GB/T 38340-2019: Small craft - Reciprocating internal combustion engines exhaust emission measurement - Test-bed measurement of gaseous and particulate exhaust emissions
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Small craft - Reciprocating internal combustion engines exhaust emission measurement - Test-bed measurement of gaseous and particulate exhaust emissions
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GB/T 38340-2019
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PDF similar to GB/T 38340-2019
Standard similar to GB/T 38340-2019 GB/T 18572 GB/T 20894 GB/T 33435 Basic data | Standard ID | GB/T 38340-2019 (GB/T38340-2019) | | Description (Translated English) | Small craft - Reciprocating internal combustion engines exhaust emission measurement - Test-bed measurement of gaseous and particulate exhaust emissions | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | U37 | | Classification of International Standard | 47.080 | | Word Count Estimation | 82,869 | | Date of Issue | 2019-12-31 | | Date of Implementation | 2020-07-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 38340-2019: Small craft - Reciprocating internal combustion engines exhaust emission measurement - Test-bed measurement of gaseous and particulate exhaust emissions
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(Small boat reciprocating internal combustion engine emission measurement Test bench measurement of gas and particulate emissions)
ICS 47.080
U37
National Standards of People's Republic of China
Small boat reciprocating internal combustion engine emission measurement
Test bench measurement of gas and particulate emissions
(ISO 18854..2015, IDT)
2019-12-31 release
2020-07-01 implementation
State Administration of Market Supervision
Published by the National Standardization Administration
Contents
Foreword Ⅴ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Symbols and acronyms 3
4.1 General symbols 3
4.2 Fuel composition symbols 5
4.3 Chemical composition symbols 5
4.4 Abbreviations 6
5 Test conditions 6
5.1 Engine test conditions 6
5.2 Supercharged Intercooled Engine 7
5.3 Power 7
5.4 Specific test conditions 7
6 Test fuel 8
7 Application of engine series concept and selection of mother machine 8
8 Measuring equipment and data to be measured 8
8.1 General 8
8.2 Technical requirements for dynamometers 9
8.3 Exhaust flow 9
8.4 Accuracy 11
8.5 Determination of gas composition 12
8.6 Determination of particulate matter 15
9 Calibration of the Analyzer 18
9.1 General 18
9.2 Calibration gas 18
9.3 Operating Procedures of the Analyzer and Sampling System 19
9.4 Leak test 19
9.5 Calibration procedure 19
9.6 Calibration of Tracer Gas Analyzer for Exhaust Gas Flow Measurement 20
9.7 NOx Converter Efficiency Test 20
9.8 Adjusting the Flame Ionization Detector (FID) 22
9.9 Interference from CO, CO2, NOx, O2, NH3 and N2O analyzers 24
9.10 Calibration interval 28
10 Calibration of particle measurement systems 28
10.1 General 28
10.2 Calibration procedure 28
10.3 Checking partial flow conditions 28
10.4 Calibration interval 28
11 Calibration of Constant Volume Sampling (CVS) Full Flow Dilution System 29
11.1 General 29
11.2 Calibration of Positive Displacement Pump (PDP) 29
11.3 Calibration of Critical Flow Venturi (CFV) 30
11.4 Calibration of Subsonic Venturi (SSV) 30
11.5 Overall System Verification 32
12 Test cycle (operating conditions) 32
12.1 General 32
12.2 Test cycle 32
13 Test run 34
13.1 Preparation of Sampling Filter Paper 34
13.2 Installation of test equipment 34
13.3 Starting the Dilution System and Engine 34
13.4 Adjustment of Dilution Ratio 34
13.5 Determination of test points 35
13.6 Analyzer Inspection 35
13.7 Test cycle
13.8 Retest Analyzer 36
13.9 Test Report 36
14 Data Evaluation of Gas and Particulate Emissions 36
14.1 Gas emissions 36
14.2 Particulate emissions 36
15 Calculation of gas emissions 37
15.1 General 37
15.2 Determination of exhaust flow
15.3 Dry/Wet Base Correction 37
15.4 Humidity and Temperature Correction for NOx 38
15.5 Calculation of emission mass flow 39
15.6 Specific Emission Calculations 42
16 Calculation of particulate emissions 43
16.1 Moisture Correction Factors for Particulates 43
16.2 Partial Flow Dilution Systems
16.3 Full Flow Dilution Systems
16.4 Calculation of Mass Flow of Particulates 44
16.5 Calculation of Specific Emissions 45
16.6 Effective weighting factor 45
17 Determination of gas emissions 45
17.1 General 45
17.2 Main exhaust components CO, CO2, HC, NOx, O2 45
17.3 Ammonia Analysis
17.4 Methane Analysis
17.5 Analysis of Methanol 53
17.6 Formaldehyde Analysis 54
18 Determination of particulate matter 55
18.1 General 55
18.2 Dilution System
18.3 Particle Sampling Systems
References 73
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard uses the translation method equivalent to ISO 18854..2015 "Measurement of gas and particulate emissions from small boat reciprocating internal combustion engines"
Test bench measurement.
The Chinese documents that have a consistent correspondence with the international documents referenced normatively in this standard are as follows.
--- GB/T 6379.1-2004 Accuracy of measurement methods and results (correctness and precision) Part 1. General principles and definitions
(ISO 5725-1..1994, IDT);
--- GB/T 6379.2-2004 Accuracy of measurement methods and results (correctness and precision) Part 2. Determine standard measurement
Basic method for repeatability and reproducibility of quantitative methods (ISO 5725-2..1994, IDT);
--- GB/T 19916-2005 Main data of small boats (ISO 8666..2002, IDT);
--- GB/T 21405-2008 Determination and measurement methods for engine power of reciprocating internal combustion engines Exhaust pollutant emission test
Additional requirements (ISO 14396..2002, IDT).
This standard was proposed and managed by the National Small Boat Standardization Technical Committee (SAC/TC241).
This standard was drafted. China Shipbuilding Industry Comprehensive Technical and Economic Research Institute, Guangdong Lianjie Biotechnology Co., Ltd.
The main drafters of this standard. Zhu Jiashuai, Sun Yaogang, Liu Wei, Wu Yongfeng, Zhang Jun, and Huang Zhicong.
Small boat reciprocating internal combustion engine emission measurement
Test bench measurement of gas and particulate emissions
1 Scope
This standard specifies the test bench measurement and evaluation methods for gas and particulate emissions under steady-state conditions of reciprocating internal combustion engines to determine each
Weighted value of exhaust pollutants. The various engine load and speed combinations reflect the different uses of the engine.
This standard applies to marine reciprocating internal combustion engines installed on small boats with a hull length of no more than 24m.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 8190.1-2010 Emission measurement of reciprocating internal combustion engines-Part 1. Test bench measurement of gas and particulate emissions
(ISO 8178-1..2006, IDT)
GB/T 8190.6-2006 Emission measurement of reciprocating internal combustion engines-Part 6. Measurement results and test reports (ISO 8178-6.
2000, IDT)
GB/T 21404-2008 General requirements for determination and measurement of engine power of internal combustion engines (ISO 15550..2002, IDT)
ISO 5725-1 Accuracy of measurement methods and results (correctness and precision) Part 1. General principles and definitions [Accuracy
(truenessandprecision) ofmeasuremethodsandresults-Part 1. Generalprinciplesanddefini-
tions]
ISO 5725-2 Accuracy of measurement methods and results (correctness and precision) Part 2. Determination of repeatability of standard measurement methods
Basic methods with reproducibility [Accuracy (truenessandprecision) ofmeasurementmethodsandresults-
Part 2. Basicmethodforthedeterminationofrepeatabilityandreproducibilityofastandardmeasure-
mentmethod]
ISO 8666 Smallcraft-Principaldata
ISO 14396 Measurement and testing methods for engine power of reciprocating internal combustion engines
Recharge requirements (Reciprocatinginternalcombustionengines-Determinationandmethodforthemeasurement
ofenginepower-AdditionalrequirementsforexhaustemissiontestsinaccordancewithISO 8178)
3 terms and definitions
The terms and definitions defined in ISO 8666 and the following apply to this document.
3.1
Particulate matter
Dilute the exhaust gas with clean filtered air so that the gas temperature measured immediately upstream of the main filter paper is greater than 315K (42 ° C) and not greater than
At 325K (52 ° C), the material collected on the specified filter medium.
Note 1. Particulate matter is mainly composed of carbon, condensed hydrocarbons, sulfates and bound water.
Note 2. Particulate matter as defined in this standard is essentially the same in composition and weight as particles or dust sampled from undiluted exhaust gas directly by hot filtration.
with. It has been proven that the measurement of particulate matter described in this standard is only effective for fuels with a sulfur content of less than 0.8%.
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