Low-Load Dual-Fuel Compression Ignition (CI) Engine Operation with an On-Board Reformer and a Diesel Oxidation Catalyst: Effects on Engine Performance and Emissions

Research output: Contribution to journalArticle

Standard

Low-Load Dual-Fuel Compression Ignition (CI) Engine Operation with an On-Board Reformer and a Diesel Oxidation Catalyst: Effects on Engine Performance and Emissions. / Tsolakis, Athanasios; Torbati, R; Megaritis, A; Abu-Jrai, A.

In: Energy & Fuels, Vol. 24, No. 1, 07.10.2009, p. 302-308.

Research output: Contribution to journalArticle

Harvard

APA

Vancouver

Author

Bibtex

@article{b62d2dd3be7147ebae7e2f6c26fd416e,
title = "Low-Load Dual-Fuel Compression Ignition (CI) Engine Operation with an On-Board Reformer and a Diesel Oxidation Catalyst: Effects on Engine Performance and Emissions",
abstract = "In the exhaust gas fuel-reforming method, part of the engine exhaust gas reacts With small amounts of engine fuel in a mini-reactor fitted in the exhaust gas recirculation (EGR) loop to produce gaseous fuel named reformed EGR (REGR). In this study, hot REGR (gas containing H-2, CO, CH4, and CO2) was fed back to the engine inlet, so that the diesel engine in effect operated ill dual fuel with inlet heating and EGR (CO2 existence). I-lie effects of the diesel engine dual fueling with different REGR percentages oil the engine performance and emissions have been examined. The Study focused at low-load engine operation, where the conditions are not favorable for efficient gaseous fuel oxidation and engine combustion stability. The addition of the premixed gaseous fuel resulted in a remarkable reduction of both NO, and smoke engine emissions. Carbon monoxide and hydrogen oxidation efficiency call be improved by careful selection of REGR addition (e.g., premixed air/fuel ratio, inlet temperature, and reduced in-cylinder O-2 concentration) and in-cylinder diesel injection timing. The use of Pt supported on Al2O3 as an oxidation catalyst at the engine exhaust call eliminate both CO and H-2 at temperatures lower than the engine exhaust gas temperature at part loads. Preferably, in an actual engine reformer system, the uncombusted CO and H-2 will be used to enhance the after treatment system (i.e., diesel particulate filter, NOx traps, and hydrocarbon-selective catalytic reduction of NOx) performance.",
author = "Athanasios Tsolakis and R Torbati and A Megaritis and A Abu-Jrai",
year = "2009",
month = oct,
day = "7",
doi = "10.1021/ef900796p",
language = "English",
volume = "24",
pages = "302--308",
journal = "Energy & Fuels",
issn = "0887-0624",
publisher = "American Chemical Society",
number = "1",

}

RIS

TY - JOUR

T1 - Low-Load Dual-Fuel Compression Ignition (CI) Engine Operation with an On-Board Reformer and a Diesel Oxidation Catalyst: Effects on Engine Performance and Emissions

AU - Tsolakis, Athanasios

AU - Torbati, R

AU - Megaritis, A

AU - Abu-Jrai, A

PY - 2009/10/7

Y1 - 2009/10/7

N2 - In the exhaust gas fuel-reforming method, part of the engine exhaust gas reacts With small amounts of engine fuel in a mini-reactor fitted in the exhaust gas recirculation (EGR) loop to produce gaseous fuel named reformed EGR (REGR). In this study, hot REGR (gas containing H-2, CO, CH4, and CO2) was fed back to the engine inlet, so that the diesel engine in effect operated ill dual fuel with inlet heating and EGR (CO2 existence). I-lie effects of the diesel engine dual fueling with different REGR percentages oil the engine performance and emissions have been examined. The Study focused at low-load engine operation, where the conditions are not favorable for efficient gaseous fuel oxidation and engine combustion stability. The addition of the premixed gaseous fuel resulted in a remarkable reduction of both NO, and smoke engine emissions. Carbon monoxide and hydrogen oxidation efficiency call be improved by careful selection of REGR addition (e.g., premixed air/fuel ratio, inlet temperature, and reduced in-cylinder O-2 concentration) and in-cylinder diesel injection timing. The use of Pt supported on Al2O3 as an oxidation catalyst at the engine exhaust call eliminate both CO and H-2 at temperatures lower than the engine exhaust gas temperature at part loads. Preferably, in an actual engine reformer system, the uncombusted CO and H-2 will be used to enhance the after treatment system (i.e., diesel particulate filter, NOx traps, and hydrocarbon-selective catalytic reduction of NOx) performance.

AB - In the exhaust gas fuel-reforming method, part of the engine exhaust gas reacts With small amounts of engine fuel in a mini-reactor fitted in the exhaust gas recirculation (EGR) loop to produce gaseous fuel named reformed EGR (REGR). In this study, hot REGR (gas containing H-2, CO, CH4, and CO2) was fed back to the engine inlet, so that the diesel engine in effect operated ill dual fuel with inlet heating and EGR (CO2 existence). I-lie effects of the diesel engine dual fueling with different REGR percentages oil the engine performance and emissions have been examined. The Study focused at low-load engine operation, where the conditions are not favorable for efficient gaseous fuel oxidation and engine combustion stability. The addition of the premixed gaseous fuel resulted in a remarkable reduction of both NO, and smoke engine emissions. Carbon monoxide and hydrogen oxidation efficiency call be improved by careful selection of REGR addition (e.g., premixed air/fuel ratio, inlet temperature, and reduced in-cylinder O-2 concentration) and in-cylinder diesel injection timing. The use of Pt supported on Al2O3 as an oxidation catalyst at the engine exhaust call eliminate both CO and H-2 at temperatures lower than the engine exhaust gas temperature at part loads. Preferably, in an actual engine reformer system, the uncombusted CO and H-2 will be used to enhance the after treatment system (i.e., diesel particulate filter, NOx traps, and hydrocarbon-selective catalytic reduction of NOx) performance.

U2 - 10.1021/ef900796p

DO - 10.1021/ef900796p

M3 - Article

VL - 24

SP - 302

EP - 308

JO - Energy & Fuels

JF - Energy & Fuels

SN - 0887-0624

IS - 1

ER -