Characterization from Diesel and Renewable Fuel Engine Exhaust: Particulate Size/Mass Distributions and Optical Properties
Journal article, 2023

Combustion of fossil fuel produces emissions and is one of the major environmental problems leading to climate change. Diesel engines are highly efficient but produce particulate emissions. These particulate emissions are considered dangerous to human health because inhaling particulates may cause respiratory and heart disease. Substituting fossil diesel fuel with renewable diesel fuel and using diesel particulate filters is one possibility to meet stringent legislative requirements. With this motivation, the present experimental investigation aimed to evaluate the particle size distribution (PSD), optical properties of particulate matter (PM) emitted, and the outcome of using an after-treatment system comprising of a diesel particle filter (DPF). This investigation aimed to make a comparative analysis of particulate emission upstream and downstream of the DPF with and without ultraviolet (UV) light (405 nm and 781 nm wavelength) turned on/off. Experiments were performed at (a) engine idle with a torque of 6 Nm at 750 rpm, IMEP of 1.35 bar and power of 0.5 kW, (b) engine at part load with a torque of 32 Nm at 1200 rpm, IMEP of 8.5 bar and power of 4.5 kW. Diesel engine was operated on two fuels (a) Diesel and (b) EHR7. Results showed that as and when UV light was turned on, a distinct nucleation mode that dominated the number concentration for both test fuels were observed. Downstream of the filter had relatively higher AAE values which show the contribution to climate change. Present experimental research is important for renewable fuel industries, industrial innovation's future, and the exhaust gas after-treatment system (EATS) community. The results contribute to knowledge for occupational exposure, human health, and the environment.

UV Light

DPF

Oxygenated fuel

Particle aging

Particle number size distribution

Author

Nikhil Sharma

Malaviya National Institute of Technology Jaipur

Kalyan Mitra

Student at Chalmers

Jelena Pezer

Student at Chalmers

Ravikant Pathak

Institution of Chemistry at Gothenburg University

Jonas Sjöblom

Chalmers

Aerosol Science and Engineering

2510375X (ISSN) 25103768 (eISSN)

Vol. 7 182-191

Subject Categories

Other Mechanical Engineering

Energy Engineering

Bioenergy

DOI

10.1007/s41810-023-00172-x

More information

Latest update

2/6/2024 3