Performance and emissions of hydrogen internal combustion engine with hot EGR

Jun Fa Duan; Fu Shui Liu; Bai Gang Sun

doi:10.13949/j.cnki.nrjgc.2016.01.004

Performance and emissions of hydrogen internal combustion engine with hot EGR

Jun Fa Duan, Fu Shui Liu, Bai Gang Sun

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The hydrogen engine combustion performance and emission characteristics were investigated based on a port fuel injection (PFI) H₂ICE test sysytem equipped with hot EGR system. Experimental results show that using hot EGR can significantly reduce the maximum cylinder pressure and temperature and slightly increase ignition delay period and combustion duration. Increasing EGR rate has no obvious effect on indicated mean effective pressure (IMEP) and working cycle variations, which means EGR has a little impact on the engine power output and ride comfort. When EGR rate is large enough at middle load, NO_x emission is reduced greatly, but only a moderate EGR rate is needed for NO_x emission control at high load, because an excessive EGR rate would lead to significant reduction in power output and fuel economy.

Original language	English
Pages (from-to)	21-25 and 30
Journal	Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering
Volume	37
Issue number	1
DOIs	https://doi.org/10.13949/j.cnki.nrjgc.2016.01.004
Publication status	Published - 15 Feb 2016

Keywords

Combustion characteristic
Cycle variation
Hot exhaust gas recirculation
Hydrogen internal combustion engine
IC engine
Indicate mean effective pressure
NO emission

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10.13949/j.cnki.nrjgc.2016.01.004

Cite this

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title = "Performance and emissions of hydrogen internal combustion engine with hot EGR",

abstract = "The hydrogen engine combustion performance and emission characteristics were investigated based on a port fuel injection (PFI) H2ICE test sysytem equipped with hot EGR system. Experimental results show that using hot EGR can significantly reduce the maximum cylinder pressure and temperature and slightly increase ignition delay period and combustion duration. Increasing EGR rate has no obvious effect on indicated mean effective pressure (IMEP) and working cycle variations, which means EGR has a little impact on the engine power output and ride comfort. When EGR rate is large enough at middle load, NOx emission is reduced greatly, but only a moderate EGR rate is needed for NOx emission control at high load, because an excessive EGR rate would lead to significant reduction in power output and fuel economy.",

keywords = "Combustion characteristic, Cycle variation, Hot exhaust gas recirculation, Hydrogen internal combustion engine, IC engine, Indicate mean effective pressure, NO emission",

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T1 - Performance and emissions of hydrogen internal combustion engine with hot EGR

AU - Duan, Jun Fa

AU - Liu, Fu Shui

AU - Sun, Bai Gang

PY - 2016/2/15

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N2 - The hydrogen engine combustion performance and emission characteristics were investigated based on a port fuel injection (PFI) H2ICE test sysytem equipped with hot EGR system. Experimental results show that using hot EGR can significantly reduce the maximum cylinder pressure and temperature and slightly increase ignition delay period and combustion duration. Increasing EGR rate has no obvious effect on indicated mean effective pressure (IMEP) and working cycle variations, which means EGR has a little impact on the engine power output and ride comfort. When EGR rate is large enough at middle load, NOx emission is reduced greatly, but only a moderate EGR rate is needed for NOx emission control at high load, because an excessive EGR rate would lead to significant reduction in power output and fuel economy.

AB - The hydrogen engine combustion performance and emission characteristics were investigated based on a port fuel injection (PFI) H2ICE test sysytem equipped with hot EGR system. Experimental results show that using hot EGR can significantly reduce the maximum cylinder pressure and temperature and slightly increase ignition delay period and combustion duration. Increasing EGR rate has no obvious effect on indicated mean effective pressure (IMEP) and working cycle variations, which means EGR has a little impact on the engine power output and ride comfort. When EGR rate is large enough at middle load, NOx emission is reduced greatly, but only a moderate EGR rate is needed for NOx emission control at high load, because an excessive EGR rate would lead to significant reduction in power output and fuel economy.

KW - Combustion characteristic

KW - Cycle variation

KW - Hot exhaust gas recirculation

KW - Hydrogen internal combustion engine

KW - IC engine

KW - Indicate mean effective pressure

KW - NO emission

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Performance and emissions of hydrogen internal combustion engine with hot EGR

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