The 3rd International Conference on Energy and Power (ICEP2021) will be organised by Chiang Mai University, Thailand and Zhejiang University, China in association with the Australian Society of Energy and Power (ASEP) from 18-20 November 2021. Due to the COVID-19 crisis around the globe, the ICEP2021 conference was organised Online using the Zoom Meeting App. You can watch the recordings on YouTube
Abstract. Fine particulate matter (PM2.5) emission causes health problems and deaths of people in densely populated cities whose cannot handle of air pollution. The emission causes from different sources and effects such as wildfire smoke, exhaust fumes from industry and traffic, and some effects such as wind and precipitation. Diesel engines, highly used for commercial vehicles, produce much higher PM2.5 emission comparing to other engines, and are one of the most source of air pollution in crowed cities. Due to high traffic in mega cities, the vehicles are forced to run in idle mode in most of the time, and produce PM2.5 emission countlessly. Implementing natural gas for the diesel engine is attractive for reducing the emission and energy price. In this work, the origin equipment manufacturer (OEM) electronic control unit (ECU) of a light-duty diesel vehicle was removed and replaced by a programmable ECU to apply the natural gas. The engine parameters were tuned and controlled to achieve lower exhaust emission from a tailpipe. Those variables are fuel quantity (diesel and natural gas), inlet air quantity, diesel injection timing, and fuel pressure at proper engine coolant temperature and supply voltage. PM2.5 air detector sensor was used for monitoring the air pollution from an exhaust pipe of the vehicle on idle mode. The results showed that the PM2.5 emission during idle operation in diesel mode was extremely reduced by using proper parameters in the dual fuel mode. The emission results were varied related with natural gas quantity and diesel injection timing. Emissions of the transitions between two modes were shown experimental results.