船舶柴油机排放试验NOx不确定度评估

Evaluation of NOx Uncertainty in Marine Diesel Engine Emission Test

依据GB15097-2016《船舶发动机排气污染物排放限值及测量方法(中国第一、二阶段)》进行船舶柴油机台架测功机排放试验测量NOx排放量,按照不确定度评估方法,从试验环境、仪器设备、试验测量方法和原理等角度,建立了船舶柴油机排放试验NOx不确定度计算公式,并对其进行评估计算,得到其扩展不确定度。

According to GB15097-2016 emission limits and measurement methods of marine engine exhaust pollutants(the first and second stage in China),the emission test of marine diesel engine bench dynamometer is carried out to measure the NOx emission.According to the uncertainty evaluation method,the calculation formula of the uncertainty of NOx emission test of marine diesel engine is established from the perspective of test environment,instruments and equipment,test measurement method and principle.And the expanded uncertainty is obtained by evaluation and calculation.