Study of Using Oxygen-Enriched Combustion Air for Locomotive Diesel Engines

Assanis, Dennis N.; Poola, Ramesh B.; Sekar, R.; Cataldi, G.

doi:10.1115/1.1290590

Cited by 44 publications

(22 citation statements)

References 12 publications

(3 reference statements)

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“…The polymer membranes with selectivity and permeability can produce higher oxygen concentrations in the intake air [18]. By means of membrane separation technology, up to 35% oxygen concentration in the intake air can be achieved and is reported in the literature [19]. By development of practical applications for oxygenenriching membranes, the results of this paper can be employed in conventional SI engines.…”

Section: Motivation and Related Workmentioning

confidence: 86%

Performance and emissions optimization of an ethanol-gasoline fueled SI engine with oxygen enrichment using artificial bee colony algorithm

2017

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Abstract. The use of arti cial neural network in conjunction with arti cial bee colony algorithm is proposed as a method for performance and emissions optimization of an SI engine. The case study here involves the oxygen enriched combustion of an SI engine fueled with hydrous ethanol and gasoline. In this study, the engine was considered as a black box and its performance and emissions were extracted experimentally at di erent intake air oxygen concentrations, hydrous ethanol injection rates, and ethanol concentration in the hydrous ethanol mixture. Then, the simultaneous injection of hydrous ethanol and oxygen enriched combustion was investigated to maximize the fuel conversion e ciency and minimize the CO and NOx emissions. Therefore, an objective function consisting of both the emission and performance parameters was optimized using the Arti cial Bee Colony algorithm. The engine model used in this optimization process was obtained from an Arti cial Neural Network trained with experimental engine data. For operating speed of 3000 rpm, the optimization results indicated 1.21% improvement in fuel conversion e ciency and 31.11% and 13.94% reduction in CO and NOx emissions, respectively. At the speed of 2000 rpm, fuel conversion e ciency improved by 4.11% and CO emission decreased by 18.73%, while NOx concentration increased by 28.35%.

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Section: Motivation and Related Workmentioning

confidence: 86%

Performance and emissions optimization of an ethanol-gasoline fueled SI engine with oxygen enrichment using artificial bee colony algorithm

2017

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“…According to Perz and Boehman, BP output increases by oxygen enrichment [2]. Assanis et al proved the potential of BP enhancement with oxygen enrichment at full load conditions [3]. Rigopoulos et al made experimental studies concerning the oxygen enrichment of intake air.…”

Section: Bpmentioning

confidence: 98%

“…A four percent increase in peak cylinder pressure can result in an approximately 10% increase in net engine power when the intake oxygen concentration of 4 L/min is used [3]. p mef is a valuable measure of an IC engines capacity to do work that is independent of the engine displacement.…”

Section: Mean Effective Pressure (P Mef )mentioning

confidence: 99%

Impact of oxygen enriched combustion on the performance of a single cylinder diesel engine

Rajkumar¹,

Govindarajan²

2011

Front. Energy

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In the present experiment, a computerized single cylinder diesel engine with a data acquisition system was used to study the effects of oxygen enriched combustion technology (OECT) on the performance characteristics. The use of different levels of oxygenenriched air was compared with respect to percentage load. Increasing the oxygen content in the air leads to faster burn rates and increases the combustibility at the same stoichiometry (oxygen-to-fuel ratio). These effects have the potential to increase the thermal efficiency and specific power output of a diesel engine. The power increases considerably with oxygen enrichment. In addition, oxygen enrichment can also be considered as a way to reduce the sudden loss in power output when the engine operates in a high load condition. Assessed high combustion temperature from the oxygen enriched combustion leads to high combustion efficiency. OECT reduces the volume of flue gases and reduces the effects of greenhouse effects. Engine tests were conducted in the above said engine for different loads and the following performance characteristics like brake power (BP), specific fuel consumption (SFC), mean effective pressure, brake thermal efficiency, mechanical efficiency, and exhaust gas temperature were studied. The objective of this paper is to address, in a systematic way, the key technical issues associated with applying OECT to single cylinder diesel engines.

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“…Some researchers, especially those at Argonne important and received more attention throughout the world in recent years because of the gradually National Laboratory, have conducted many research studies on the application of membrane-based stringent legislated levels for carbon monoxide (CO), hydrocarbons (HCs), nitrogen oxides (NO x ), and oxygen-enriched combustion to compression ignition and spark ignition engines [30][31][32][33][34]. By far, research particulate matter emissions of diesel engines.…”

Section: Introductionmentioning

confidence: 99%

Improvement of startability of direct-injection diesel engines by oxygen-enriched intake air

Xiao

Qiao

Huang

et al. 2007

Proceedings of the Institution of Mechanical Engineers, Part D:

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The startability of diesel engines degrades as the ambient temperature falls, in particular, to the borderline or lower temperature. The essential cause is the deterioration of in-cylinder combustion resulting from worsening of combustion conditions. A membranebased oxygen-enriched intake air (OEA) method is proposed to improve in-cylinder combustion and then to reduce exhaust emissions during the start-up process. This paper investigates the effects of OEA on startability and exhaust emission behaviour during the engine start-up. The experiments were carried out on a direct-injection diesel engine. A membrane-based oxygenenrichment system was constructed to supply the test engine with intake air containing 21 vol %, 23 vol %, 25 vol %, and 27 vol % oxygen respectively. The in-cylinder pressure, instantaneous engine speed, and time-resolved engine-out emissions were recorded and compared for the OEA and the baseline methods (ambient air (AA), 21 vol % oxygen). The results show that, at the high intake air temperature (26°C), the engine could start smoothly. When the intake air temperature fell to the borderline temperature (5°C), the startability significantly degraded, in-cylinder incomplete combustion was evident during the initial stage of start-up, and the start-up time increased. With OEA at 5°C, the startability was markedly improved, and the engine experienced fewer cycles than those at the same intake air temperature with AA before it reached idle operation. With OEA, the engine-out hydrocarbon, CO, and smoke emissions throughout the whole start-up process were all reduced considerably, but NO x emissions evidently increased.starting and stabilizing stages may be a criterion for JAUTO541

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Study of Using Oxygen-Enriched Combustion Air for Locomotive Diesel Engines

Cited by 44 publications

References 12 publications

Performance and emissions optimization of an ethanol-gasoline fueled SI engine with oxygen enrichment using artificial bee colony algorithm

Performance and emissions optimization of an ethanol-gasoline fueled SI engine with oxygen enrichment using artificial bee colony algorithm

Impact of oxygen enriched combustion on the performance of a single cylinder diesel engine

Improvement of startability of direct-injection diesel engines by oxygen-enriched intake air

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