relation: http://acta.bibl.u-szeged.hu/85655/
title: Combining photoacoustic spectroscopy and scanning mobility particle sizer instruments for characterization of diesel emissions
creator:  Ashfaq Rana Khawar
creator:  Rahman Abdul
creator:  Ajtai Tibor
creator:  Bozóki Zoltán
subject: 01. Természettudományok
subject: 01.03. Fizikai tudományok
description: In this study, we explored the use of Multi-Wavelength Photoacoustic Spectroscopy (4λ-PAS) in combination with a Scanning Mobility Particle Sizer (SMPS) to analyze diesel particulate matter (DPM). The goal was to provide a comprehensive, real-time analysis of diesel emissions across three engine modes using two different fuel types. Additionally, we investigated the thermal evolution of emissions at three different temperatures. The total number concentration (TNC) and total volume concentration (TVC) showed a retrograde tendency with increasing torque and RPM. The Optical Absorption Coefficient (OAC), measured using the 4λ-PAS instrument, also decreased with rising torque and RPM. The qualitative analysis quantified using the Aerosol Ångström Exponent (AAE) showed a decline at higher engine RPM and torque, indicating an increase in the proportion of inorganic carbon in the emissions.
publisher: University of Szeged
date: 2024
type: Konferencia vagy workshop anyag
type: NonPeerReviewed
format: part
language: hu
identifier: http://acta.bibl.u-szeged.hu/85655/1/proceedings_of_isaep_2024_041-044.pdf
identifier:    Ashfaq Rana Khawar;  Rahman Abdul;  Ajtai Tibor;  Bozóki Zoltán:   Combining photoacoustic spectroscopy and scanning mobility particle sizer instruments for characterization of diesel emissions.   
language: eng