Study on Emission of Non-road Mobile Machinery under Actual Working Conditions

In this paper, four non-road mobile machinery as the research object, using a portable emissions analyzer (of PEMS) were NOx emission test in the actual operation process non-road mobile machine and subjected to the processing of data in accordance with the power group window method to analyze the non-road The difference between the working conditions of the test cycle of the mobile machinery regulations and the actual working conditions. The results show that non-road mobile machinery emission regulations test cycle is difficult to represent the actual working condition of machinery, mechanical calibration and matching can be achieved through legal excessive emissions, it is necessary to introduce non-road PEMS testing methods to control the actual emissions of machinery.