An emission test and evaluation method for non-road mobile machinery

Abstract

The invention relates to a non-road mobile machinery emission testing and evaluation method, comprising the following steps: obtaining the characteristic operating conditions and time proportions of various non-road machinery through clustering; according to the type, structural characteristics and Design the layout plan of the measuring device based on exhaust characteristics; design the operation plan of non-road machinery according to the characteristic working conditions; measure the operating parameters, exhaust parameters and emission parameters of non-road machinery under different characteristic working conditions; calculate the gaseous substance emission factor and Particulate Matter Emission Factor, which analyzes the characteristics of changes in particle components; characterizes non-road machinery. Compared with the prior art, the present invention considers the multi-source heterogeneity of non-road machinery, and designs a more targeted arrangement of measuring devices according to the type, structural features and exhaust characteristics of non-road machinery. Emission characteristics design a more representative operation scheme, which is more in line with the emission test requirements and actual application conditions of non-road mobile machinery.

Description

technical field [0001] The invention relates to the field of non-road machinery emission testing, in particular to an emission testing and evaluation method of non-road mobile machinery. Background technique [0002] Non-road mobile machinery includes construction machinery, agricultural machinery, field machinery, ships, aircraft, railway locomotives, etc. Construction machinery includes excavators, loaders, bulldozers, and other subcategories; agricultural machinery includes tractors, harvesters, etc. There are three subcategories; field machinery includes subcategories such as forklifts and stackers; ships include subcategories such as inland ships, offshore vessels, and oceangoing vessels. Various non-road machinery are suitable for different scenarios, with complex and diverse structures, and typical multi-source structural features. [0003] my country's non-road machinery emission standards are relatively lagging behind, and the level of emission control is low. Com...

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Problems solved by technology

However, this patent is based on a statistical method to test the emissions of non-road mobile machinery. It only calculates the pollutant emissions based on the emission factors of non-road machinery in the database and the activity levels of non-road machinery obtained through statistics. The data is not accurate enough and does not take into account The characteristics of multi-source heterogeneity of non-road machinery, and the actual emission characteristics of multi-source heterogeneous non-road machinery are not considered

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