Effect of methane augmentations on engine performance and emissions

Gaurav Tripathi, Priybrat Sharma, Atul Dhar

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Automobile numbers are increasing day by day that demand more fuel and produce more emission. In addition, petroleum sources are limited in nature and emission norms are tightening day by day. Those scenarios are motivating the researcher to find non-petroleum clean energy source. Gaseous fuel supplementation is helpful in obtaining the above stated objective. In this study, methane gas supplementation has done to diesel engine. The investigation was carried out to analyze the performance and emission of CI engine using 0–75% substitution of diesel indicated power by methane energy in dual fuel mode at varying load (25%, 50% and 75%). The result shows that brake thermal efficiency (BTE) and relative air fuel ratio decreases with methane energy share (MES), while unaccounted heat loss increases. Here, a comparison of NO and NO2 emissions have been presented to investigate the non-thermal effect of CH4 on NOx emission. Combined reduction in nitrogen oxide and soot emission makes the outcomes of this study more suitable to implement for achieving the strict emission norms. Hence, CH4 augmentation is beneficial at mid and higher load conditions with lower emissions and energy consumption.

Original languageEnglish
Pages (from-to)429-439
Number of pages11
JournalAlexandria Engineering Journal
Volume59
Issue number1
DOIs
StatePublished - Feb 2020
Externally publishedYes

Funding

The authors gratefully acknowledge the research funding provided by DST-SERB , Government of India under through Project No. ECR/2015/000135 titled “Study of Synergistic Use of Hydrogen and other Alternative Fuels in a Dual Fuel Engine for Emissions Reduction”.

Keywords

  • Compression ignition engine
  • Heat balance sheet
  • Methane-diesel dual fuel
  • Particulate matter size and number
  • Port fuel injection

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