The effect of using an energy accumulator on the level of emissions of pollutant substances by a shunting locomotive

Roman Yarovoy,Natalia Chernetskaya-Beletskaya,Evgeny Mikhailov

doi:10.15587/1729-4061.2019.176908

Abstract

Shunting locomotives at railroad stations account for most emissions of pollutants into the atmosphere. A significant share of these emissions depends on the position of the driver's controller that is used to operate a diesel locomotive, as each position of the controller corresponds to a specific rotation frequency and power of the diesel engine. We have investigated the influence of application of the energy accumulator within a power circuit of a shunting locomotive on the level of emissions of pollutants into the atmosphere when it performs different shunting operations. The relation has been established between the levels of pollutant emission into the atmosphere and the types of shunting operations performed. We have obtained statistical data regarding the time of a diesel locomotive shunting operation at each position of the driver's controller when performing different types of shunting work. That makes it possible to optimally select the parameters of an energy accumulator for a shunting locomotive, which can meet both the technical and environmental requirements. It was established, based on the results from the current study, that using the energy accumulator within a power circuit of a shunting diesel locomotive reduces the amount of emissions of carbon oxide CO, nitric oxide NO х , sulfur dioxide SO 2 , soot and hydrocarbons, into the atmosphere by 20...30 % depending on the type of performed shunting operations and the capacity of the energy accumulator applied. Bringing down the level of specified emissions would make it possible to improve environmental conditions at a station

Highlights

To assess the effectiveness of application of the energy accumulator within a power circuit at a shunting diesel locomotive, we have proposed the new approach to calculating the amount of harmful emissions by the diesel engine of a locomotive into the atmosphere, taking into consideration the mode of the locomotive operation, a position of the driver’s controller and the type of the shunting operation performed
It has been confirmed that the amount of emissions of pollutants into the atmosphere from the diesel engine at a shunting locomotive depends on the position of the driver’s controller at which it operates
To assess the effectiveness of application of an energy accumulator within a power circuit of a shunting diesel locomotive, the new approach has been proposed to calculating the amount of harmful emissions from the diesel engine in a locomotive into the atmosphere, taking into consideration the operation mode of a locomotive, a position of the driver’s controller and the type of the shunting operation performed

Summary

Introduction

Shunting locomotives at railroad stations account for most emissions of pollutants into the atmosphere. The composition of exhaust gases from the locomotive diesel engines includes the following basic components: water vapor, oxygen, carbon dioxide, nitrogen dioxide and monoxide, hydrogen, hydrocarbons, sulfuric anhydride, aldehydes, and soot. Emissions of locomotive diesel engines at shunting operations exert a negative impact on the environment. The implementation of resource-saving and environmentally-friendly technologies is one of the major tasks in modernizing and building new shunting locomotives for railroad transportation. It is a relevant task to address further improvement and development of the use of such resource-saving and environmentally-friendly technologies as the technology of accumulation and subsequent utilization of recuperation energy and excessive energy by rolling stock

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Discussion

Conclusion