0
research-article

Particulate Bound Trace Metals and Soot Morphology of Gasohol Fuelled Gasoline Direct Injection Engine

[+] Author and Article Information
Nikhil Sharma

DepartmentEngine Research Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, India
snikhil@iitk.ac.in

Rashmi A. Agarwal

Engine Research Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, India; Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, India
rashmi.a.agarwal@gmail.com

Dr. Avinash Kumar Agarwal

Engine Research Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, India
akag@iitk.ac.in

1Corresponding author.

ASME doi:10.1115/1.4040580 History: Received April 13, 2018; Revised June 08, 2018

Abstract

Direct injection spark ignition (DISI) or gasoline direct injection (GDI) engines are superior in terms of relatively higher thermal efficiency and power output compared to multipoint port fuel injection (MPFI) engines and direct injection (DI) diesel engines. In this study, a 500 cc single cylinder GDI engine was operated. Three gasohol blends (15% (v/v) ethanol/ methanol/ butanol with 85% (v/v) gasoline) were chosen for this experimental study and were characterized to determine important fuel properties. For particulate investigations, exhaust particles were collected on a quartz filter paper using a partial flow dilution tunnel. Comparative investigations for particle mass emissions, trace metal concentrations, Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR) analyses and High-resolution transmission electron microscopy (HR-TEM) imaging of the particulate samples collected for all test fuels and different engine loads were performed. For majority of the cases, gasohols showed relatively lower trace metal concentration in particulates compared to gasoline. HR-TEM images showed that higher engine loads and presence of oxygen in the test fuels increased soot reactivity. Multi-core shells like structures were visible in the HR-TEM images due to growth in nuclei, and rapid soot formation due to relatively higher temperature and pressure environment in the engine combustion chamber. Attention is being given by researchers to reduce particle emissions from GDI engine; however there is a vast research gap for such investigations related to gasohol fuelled GDI engines. This paper critically assesses and highlights morphological characteristics of gasohol fuelled GDI engine.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In