UGC Approved Journal no 63975(19)
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ISSN: 2349-5162 | ESTD Year : 2014
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Published in:

Volume 7 Issue 7
July-2020
eISSN: 2349-5162

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Published Paper ID:
JETIR2007491


Registration ID:
569203

Page Number

74-76

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Title

EFFECTS OF HYDROGEN ENHANCEMENT ON EFFICIENCY AND NOX EMISSIONS OF LEAN AND EGR-DILUTED MIXTURES IN A SI ENGINE: A CLIMATE CHANGE PERSPECTIVE

Abstract

The global climate crisis requires urgent reductions in greenhouse gas (GHG) emissions from the transportation sector, which contributes nearly a quarter of global CO₂ output. While electrification and hydrogen fuel cells represent long-term decarbonization pathways, improving the environmental performance of existing spark-ignition (SI) engines is critical in the short to medium term. This paper investigates the role of hydrogen enrichment in SI engines operating under lean and exhaust gas recirculation (EGR)-diluted conditions, reframing its implications within climate change mitigation. Hydrogen addition extends lean-burn limits, stabilizes EGR-diluted combustion, and enhances efficiency, thereby reducing fuel consumption and CO₂ emissions. However, the high flame temperature of hydrogen influences NOₓ formation, raising a trade-off between efficiency gains and ozone-forming emissions. Results show that optimized hydrogen supplementation can achieve simultaneous improvements in efficiency and reductions in climate-relevant pollutants, positioning hydrogen enrichment as a transitional technology for decarbonizing the transport sector.

Key Words

Hydrogen enrichment, Spark-ignition engine, Lean-burn, Exhaust gas recirculation, Climate change mitigation, NOₓ emissions, Greenhouse gases

Cite This Article

"EFFECTS OF HYDROGEN ENHANCEMENT ON EFFICIENCY AND NOX EMISSIONS OF LEAN AND EGR-DILUTED MIXTURES IN A SI ENGINE: A CLIMATE CHANGE PERSPECTIVE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 7, page no.74-76, July-2020, Available :http://www.jetir.org/papers/JETIR2007491.pdf

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2349-5162 | Impact Factor 7.95 Calculate by Google Scholar

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 7.95 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Cite This Article

"EFFECTS OF HYDROGEN ENHANCEMENT ON EFFICIENCY AND NOX EMISSIONS OF LEAN AND EGR-DILUTED MIXTURES IN A SI ENGINE: A CLIMATE CHANGE PERSPECTIVE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 7, page no. pp74-76, July-2020, Available at : http://www.jetir.org/papers/JETIR2007491.pdf

Publication Details

Published Paper ID: JETIR2007491
Registration ID: 569203
Published In: Volume 7 | Issue 7 | Year July-2020
DOI (Digital Object Identifier): https://doi.org/10.56975/jetir.v7i7.569203
Page No: 74-76
Country: BHAVNAGAR, Gujarat, India .
Area: Engineering
ISSN Number: 2349-5162
Publisher: IJ Publication
Published Paper URL :: https://www.jetir.org/view?paper=JETIR2007491
Published Paper PDF: https://www.jetir.org/papers/JETIR2007491

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