Effect of Hydrogen as an Additive on Lean Limit and Emissions of a Turbo Gasoline Direct Injection Engine

Joonsuk Kim; Kwang Min Chun; Soonho Song; Hong Kil Baek; Seung Woo Lee

doi:10.4271/2015-01-1886

Effect of Hydrogen as an Additive on Lean Limit and Emissions of a Turbo Gasoline Direct Injection Engine

Joonsuk Kim, Kwang Min Chun, Soonho Song, Hong Kil Baek, Seung Woo Lee

Department of Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

For gasoline engine, thermal efficiency can be improved by using lean burn. However, combustion instability occurs when gasoline engine is operated on lean condition. Hydrogen has features that can be used for improving combustion stability of gasoline engine. In this paper, an experimental study of hydrogen effect on lean limit was carried out using a four-cylinder 2.0L turbo gasoline direct injection engine. The engine torque was fixed at 110Nm on 1600RPM, 2000RPM and 2400RPM. The results showed that lean limit was extended and brake thermal efficiency was improved by hydrogen addition. Especially, at lower engine speed, the large improvement of lean limit was achieved. However, improvement of brake thermal efficiency was achieved at high speed. HC and CO₂ emissions were decreased and NO emissions increased with hydrogen addition. CO emissions were slightly reduced with hydrogen addition.

Original language	English
Journal	SAE Technical Papers
Volume	2015-September
DOIs	https://doi.org/10.4271/2015-01-1886
Publication status	Published - 2015
Event	JSAE/SAE 2015 International Powertrains, Fuels and Lubricants Meeting, FFL 2015 - Kyoto, Japan Duration: 2015 Sep 1 → 2015 Sep 4

All Science Journal Classification (ASJC) codes

Automotive Engineering
Safety, Risk, Reliability and Quality
Pollution
Industrial and Manufacturing Engineering

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title = "Effect of Hydrogen as an Additive on Lean Limit and Emissions of a Turbo Gasoline Direct Injection Engine",

abstract = "For gasoline engine, thermal efficiency can be improved by using lean burn. However, combustion instability occurs when gasoline engine is operated on lean condition. Hydrogen has features that can be used for improving combustion stability of gasoline engine. In this paper, an experimental study of hydrogen effect on lean limit was carried out using a four-cylinder 2.0L turbo gasoline direct injection engine. The engine torque was fixed at 110Nm on 1600RPM, 2000RPM and 2400RPM. The results showed that lean limit was extended and brake thermal efficiency was improved by hydrogen addition. Especially, at lower engine speed, the large improvement of lean limit was achieved. However, improvement of brake thermal efficiency was achieved at high speed. HC and CO2 emissions were decreased and NO emissions increased with hydrogen addition. CO emissions were slightly reduced with hydrogen addition.",

author = "Joonsuk Kim and Chun, {Kwang Min} and Soonho Song and Baek, {Hong Kil} and Lee, {Seung Woo}",

note = "Publisher Copyright: {\textcopyright} 2015 SAE Japan and SAE International. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.; JSAE/SAE 2015 International Powertrains, Fuels and Lubricants Meeting, FFL 2015 ; Conference date: 01-09-2015 Through 04-09-2015",

year = "2015",

doi = "10.4271/2015-01-1886",

language = "English",

volume = "2015-September",

journal = "SAE Technical Papers",

issn = "0148-7191",

publisher = "SAE International",

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T1 - Effect of Hydrogen as an Additive on Lean Limit and Emissions of a Turbo Gasoline Direct Injection Engine

AU - Kim, Joonsuk

AU - Chun, Kwang Min

AU - Song, Soonho

AU - Baek, Hong Kil

AU - Lee, Seung Woo

PY - 2015

Y1 - 2015

N2 - For gasoline engine, thermal efficiency can be improved by using lean burn. However, combustion instability occurs when gasoline engine is operated on lean condition. Hydrogen has features that can be used for improving combustion stability of gasoline engine. In this paper, an experimental study of hydrogen effect on lean limit was carried out using a four-cylinder 2.0L turbo gasoline direct injection engine. The engine torque was fixed at 110Nm on 1600RPM, 2000RPM and 2400RPM. The results showed that lean limit was extended and brake thermal efficiency was improved by hydrogen addition. Especially, at lower engine speed, the large improvement of lean limit was achieved. However, improvement of brake thermal efficiency was achieved at high speed. HC and CO2 emissions were decreased and NO emissions increased with hydrogen addition. CO emissions were slightly reduced with hydrogen addition.

AB - For gasoline engine, thermal efficiency can be improved by using lean burn. However, combustion instability occurs when gasoline engine is operated on lean condition. Hydrogen has features that can be used for improving combustion stability of gasoline engine. In this paper, an experimental study of hydrogen effect on lean limit was carried out using a four-cylinder 2.0L turbo gasoline direct injection engine. The engine torque was fixed at 110Nm on 1600RPM, 2000RPM and 2400RPM. The results showed that lean limit was extended and brake thermal efficiency was improved by hydrogen addition. Especially, at lower engine speed, the large improvement of lean limit was achieved. However, improvement of brake thermal efficiency was achieved at high speed. HC and CO2 emissions were decreased and NO emissions increased with hydrogen addition. CO emissions were slightly reduced with hydrogen addition.

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