在地下采矿中对先进的柴油发动机和废气后处理系统进行排放辅助维护
1Pittsburgh Mining Research Division, National Institute for Occupational Safety and Health, 626 Cochrans Mill Rd., Pittsburgh, PA 15236, USA.
概括
保持柴油颗粒过器 (DPF) 的有效性对于地下采矿至关重要. 扭矩转换器和液压停机测试是评估DPF系统的最佳选择,优于动测试可靠的柴油颗粒物监测.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 环境科学 环境科学
- 机械工程 机械工程
背景情况:
- 柴油颗粒物 (DPM) 对矿工造成健康风险.
- 目前的排放辅助维护 (EAM) 方法与先进的柴油发动机和DPF系统相斗争.
- 有效的DPM监控对于地下采矿安全至关重要.
研究的目的:
- 评估目前用于具有DPF系统的柴油发动机的EAM方法.
- 确定适合的测试条件和指标,用于在地下采矿中监测DPM.
- 评估用于DPF性能评估的直接读取仪器的可行性.
主要方法:
- 扭矩转换器停机,液压停机,低置和高置试验条件的比较.
- 固体颗粒数 (SPN) 度与总颗粒数度的评估.
- 对SPN测量的TSI 3795-HC和Pegasor Mi3仪器的评估.
主要成果:
- 扭矩转换器停机和液压停机测试最适合评估DPF的有效性.
- 低置和高置测试产生了不可靠和不可重现的数据.
- 固体颗粒数 (SPN) 度对于EAM来说是一个比总颗粒数更合适的指标.
- TSI 3795-HC 和Pegasor Mi3仪器准确测量了SPN度.
结论:
- 先进的EAM程序需要改进的方法来监测DPM的柴油发动机与DPFs.
- 扭矩转换器和液压停机测试,以及SPN测量,增强了地下矿山的DPF监测.
- 像TSI 3795-HC和Pegasor Mi3这样的直接读取仪器是DPF系统EAM的可行的工具.
相关概念视频
Otto and Diesel Cycle
2.2K
An Otto engine is a four-stroke engine that uses a mixture of gasoline and air as the working fuel. The fuel is injected into the cylinder, and the piston is moved completely down so that the cylinder is at maximum volume. By moving the piston up, adiabatic compression takes place. The spark plug ignites the gasoline-air mixture, and the burning fuel adds heat to the system at a constant volume. The heated mixture expands adiabatically and gets further cooled by exhausting heat, and this cyclic...
2.2K
Internal Combustion Engine
1.8K
The internal combustion engine is a heat engine that uses the byproducts of combustion as the working fluid instead of using a heat transfer medium to transfer heat. The combustion is done in a way that produces high-pressure combustion products that can be expanded through a turbine or piston to create work. Internal combustion engines can again be categorized into three kinds: (1) spark ignition gasoline engines, most commonly used in automobiles, (2) compression ignition diesel engines that...
1.8K
Environmental Applications of Microorganisms
302
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
302


