Many investigations on the fuel consumption and the emission characteristics of diesel engines for non-road mobile machinery (NRMM) have been carried out in the various conditions of steady-state and transient operation, and the knowledge obtained from these studies provides substantial information to analyze real operation emissions. Detailed information on the fuel efficiency and the emission under the real operation condition, however, is still needed to provide significant information to develop the advanced after-treatment system as well as to analyse the fuel efficiency and emissions from the NRMM operating real-world conditions. This study aims to investigate the fuel efficiency and the gaseous emissions from a diesel locomotive. The experiment was carried out with a Portable Emissions Measurement System (PEMS), and studies the fuel efficiency, the overall gaseous emissions, the association of gaseous emissions and brake mean effective pressure (BMEP), and the load conditions for the emission measurement.

已经对非道路移动机械（NRMM）柴油机在稳态和瞬态运行的各种条件下的燃料消耗和排放特性进行了许多研究，从这些研究中获得的知识为分析提供了大量信息。实际运行排放。然而，仍然需要有关实际运行条件下的燃油效率和排放的详细信息，以便为开发先进的后处理系统以及分析 NRMM 运行实际条件下的燃油效率和排放提供重要信息. 本研究旨在调查内燃机车的燃油效率和 气体排放。  该实验使用便携式排放测量系统 (PEMS) 进行，并研究 了燃料效率、 总气体排放、 气体排放与制动平均有效压力 (BMEP) 的关联以及排放测量的负载条件。