Experimental Evaluation of SI Engine Operation Supplemented by Hydrogen Rich Gas from a Compact Plasma Boosted Reformer

Green, Johney B.; Domingo, Neus; Storey, John; Wagner, R. M.; Armfield, J. S.; Bromberg, L.; Cohn, D.R.; Rabinovich, A.; Alexeev, N.

doi:10.4271/2000-01-2206

Cited by 18 publications

(5 citation statements)

References 11 publications

(14 reference statements)

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“…Several studies have shown that the use of an on-board fuel reformer can significantly reduce emissions and potentially increase efficiency [3,4]. In this concept gasoline and air enter the reformer and the fuel is partially oxidized to form a stream that consists primarily of hydrogen, carbon monoxide, and nitrogen.…”

Section: -Plasmatron Engine Conceptmentioning

confidence: 99%

Lean-Burn Characteristics of a Gasoline Engine Enriched with Hydrogen Plasmatron Fuel Reformer

Tully

Heywood

2003

SAE Technical Paper Series

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Section: -Plasmatron Engine Conceptmentioning

confidence: 99%

Lean-Burn Characteristics of a Gasoline Engine Enriched with Hydrogen Plasmatron Fuel Reformer

Tully

Heywood

2003

SAE Technical Paper Series

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“…The rate of exhaust heat recovery is then approximately equal to the change in enthalpy of the exhaust gases as they drop in temperature by DT Ref , and is calculated using eqn (8). Under normal engine operating conditions, i.e.…”

Section: Exhaust Energy Recoverymentioning

confidence: 99%

“…This means that the exhaust stream temperature drop due to reforming, DT Ref can be estimated for each condition using DT Ref ¼ DT REGR À DT EGR . The rate of exhaust heat recovery is then approximately equal to the change in enthalpy of the exhaust gases as they drop in temperature by DT Ref , and is calculated using eqn (8). The specic heat capacity of the exhaust stream, c exh , was calculated for the mixture of nitrogen, CO 2 and steam (post-TWC composition) at the average of the pre-and post-reformer exhaust stream temperature.…”

Section: Exhaust Energy Recoverymentioning

confidence: 99%

“…6,7 However, the engine-reformer system efficiency ultimately suffers due to energy lost in the exothermic partial oxidation reforming process. A plasma reformer 8,9 instead uses electrical power to convert HC fuels to reformate. Again, the overall engine-reformer system efficiency is reduced due to the electrical power required for the reforming process.…”

Section: Introductionmentioning

confidence: 99%

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Thermochemical recovery technology for improved modern engine fuel economy – part 1: analysis of a prototype exhaust gas fuel reformer

et al. 2015

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Exhaust gas fuel reforming has the potential to improve the thermal efficiency of internal combustion engines, as well as simultaneously reduce gaseous and particulate emissions. This thermochemical energy recovery technique aims to reclaim exhaust energy from the high temperature engine exhaust stream to drive catalytic endothermic fuel reforming reactions; these convert hydrocarbon fuel to hydrogen-rich reformate. The reformate is recycled back to the engine as Reformed Exhaust Gas Recirculation (REGR), which provides a source of hydrogen to enhance the engine combustion process and enable high levels of charge dilution; this process is especially promising for modern gasoline direct injection (GDI) engines. This paper presents a full-scale prototype gasoline reformer integrated with a multi-cylinder GDI engine. Performance is assessed in terms of the reformate composition, the temperature distribution across the catalyst, the reforming process (fuel conversion) efficiency and the amount of exhaust heat recovery achieved.

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“…Among the methods examined, the most employed are catalytic [1] : reformation -adding a reformed fuel into the exhaust channel; exhaust gas recirculation (EGR) [2] ; plasma-dielectric barrier discharge (DBD), corona, etc. [3∼7] ; and introducing H 2 -rich gas into the engine [8] . These were discussed briefly in a previous paper [9] .…”

Section: Introductionmentioning

confidence: 99%

Exhaust Cleaning with Dielectric Barrier Discharge

Plaksin

Penkov

et al. 2010

Plasma Sci. Technol.

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To clean the exhaust emissions as one of the most important tasks in pollution control, a study on the treatment of engine emissions with discharge assistance was reported. A DBD plasma source shaped in grid and cylinder was examined in different engine operational modes to reduce the NOx content of diesel engine exhaust. The composition of the exhaust gases and chemical reactions initiated by the discharge were analyzed. The discharge frequency had a crucial impact on the device's performance and gas treatment. The voltages applied to the discharge gap could alter the chemical reactions occurring in the treated gases, which were indicated by the NO to NO2 ratio. The operation of the system was studied at frequencies ranging from 400 Hz to 16 kHz.

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Experimental Evaluation of SI Engine Operation Supplemented by Hydrogen Rich Gas from a Compact Plasma Boosted Reformer

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Cited by 18 publications

References 11 publications

Lean-Burn Characteristics of a Gasoline Engine Enriched with Hydrogen Plasmatron Fuel Reformer

Lean-Burn Characteristics of a Gasoline Engine Enriched with Hydrogen Plasmatron Fuel Reformer

Thermochemical recovery technology for improved modern engine fuel economy – part 1: analysis of a prototype exhaust gas fuel reformer

Exhaust Cleaning with Dielectric Barrier Discharge

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