Influence of Fuel Properties on Exhaust Emissions from Advanced Heavy-Duty Engines Considering the Effect of Natural and Additive Enhanced Cetane Number

Lange, Wilfried; Cooke, Jay; Gadd, Paul; Zürner, H. J.; Schlögi, H.; Richter, Kathleen

doi:10.4271/972894

Cited by 16 publications

(18 citation statements)

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“…Complete fuel reformulation would affect all heavyduty diesel vehicles and has the potential to reduce NO x and PM significantly. 12 Diesel fuel additives have also been used for reduction of emissions as shown by Lange et al 13 and Green et al 14 The most common additive has been a cetane number enhancer. The results show that a fuel with a higher cetane number ignites earlier and, thus, may use less fuel for the same power output.…”

Section: Fuel Differencesmentioning

confidence: 99%

Factors Affecting Heavy-Duty Diesel Vehicle Emissions

Clark

Kern

Atkinson

et al. 2002

Journal of the Air & Waste Management Association

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Societal and governmental pressures to reduce diesel exhaust emissions are reflected in the existing and projected future heavy-duty certification standards of these emissions. Various factors affect the amount of emissions produced by a heterogeneous charge diesel engine in any given situation, but these are poorly quantified in the existing literature. The parameters that most heavily affect the emissions from compression ignition engine-powered vehicles include vehicle class and weight, driving cycle, vehicle vocation, fuel type, engine exhaust aftertreatment, vehicle age, and the terrain traveled. In addition, engine control effects (such as injection timing strategies) on measured emissions can be significant. Knowing the effect of each aspect of engine and vehicle operation on the emissions from diesel engines is useful in determining methods for reducing these emissions and in assessing the need for improvement in inventory models. The effects of each of these aspects have been quantified in this paper to provide an estimate of the impact each one has on the emissions of diesel engines.

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Section: Fuel Differencesmentioning

confidence: 99%

Factors Affecting Heavy-Duty Diesel Vehicle Emissions

Clark

Kern

Atkinson

et al. 2002

Journal of the Air & Waste Management Association

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“…Two common ignition improver (or cetane improver) additives are a nitrate-based 2-ethlyhexyl nitrate (2-EHN) and peroxide-based additive (DTBP). Previous diesel emission studies have shown mixed results of NO x reduction using 2-EHN or DTBP with some having up to 8 per cent reduction in NO x [11,12] and with others showing no benefit [13] or an increase in NO x [14]. McCormick et al [15] effectively blended biodiesel with DTBP and 2-EHN to reduce NO x and to maintain the PM emissions reduction from the use of biodiesel over its neat petroleum diesel on a 1991 Detroit Diesel Corporation (DDC) series 60 engine, while a 2002 Cummins ISB and 2003 DDC series 60 [16] had no effect on NO x when adding 2-EHN to B20.…”

Section: Review Of the Literaturementioning

confidence: 98%

Evaluation of the NO_x emissions from heavy-duty diesel engines with the addition of cetane improvers

Nuszkowski

Tincher

Thompson

2009

Proceedings of the Institution of Mechanical Engineers, Part D:

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The exhaust emissions from heavy-duty diesel engines (HDDEs) contribute to the degradation of ambient air quality; therefore, environmental agencies have created stringent emissions standards. Since the implementation of these standards, overall engine and fuel technology improvements have created a significant reduction in emissions. This study was completed in order to evaluate oxides of nitrogen (NO x ) emissions from fuels with and without cetane-improving additives in recent and early production electronically controlled HDDEs. Five engines spanning the model years from 1991 to 2004 were tested using the Federal Test Procedure (FTP) dynamometer cycle with both petroleum-based diesel and B20 as the neat fuel. It was found that the additives had the most impact on reducing emissions at low engine powers, but the engine power range with an NO x benefit varied between engines. The cetane improvers were found only to reduce NO x below a cylinder gas density of 35 kg/m 3 at top dead centre. The lower compression ratio of the 1992 DDC S60 engines reduced the cylinder gas density and provided a larger optimal operating range for the cetane improvers. The cetane improvers reduced NO x at low engine powers and cylinder gas density for the B20 fuel but were less effective than for the neat petroleum fuels.

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“…Researchers have developed several models for emission control. [16] developed an integrated model on the framework of STELLA software, used to provide effective urban energy planning for a low-carbon city. [17] developed a model using the artificial neutral network to forecast the emission features of any upgraded or newly formulated biodiesel and its blends functioned at varying load conditions in a cylinder diesel engine.…”

Section: Modelling Emission Techniquesmentioning

confidence: 99%

Modelling Carbon Monoxide Emission Level of Diesel Engine Generators in Nigeria

Olansunkanmi¹,

Adeyemi²

2018

Safety Engineering

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Diesel engines exhausts vehemently threaten the environment and are one of the significant sources of air pollution. This research paper is aimed at predicting the risk level of carbon monoxide (CO) emission produced by diesel engine generators. Emission data on the diesel engine and the emission parameters were obtained for 105 diesel engine generators. The four input variables used to develop the model were: the installed capacity, the purchase time, the operating time and the time last serviced. Multiple linear regression modeling technique was used to develop the output (risk level of emission). The adjusted coefficient of determination, R2 value of the optimum model, was 0.382 which explains about 38.2% of the variance in CO emission; also the Cook’s distance (0.131) was less than 1 which signifies minor or no problem in the sample size used. Model validation showed a strong correlation of 89.5% between the model predictions and human predictions. At a significance level of 5%, the t-test showed that there was no significant difference between the model prediction risk level and the human prediction risk level. The model in this study is useful to industry, government environmental protection agency and private users during the determination of the risk level of CO emissions from diesel engine generators. Key words: emission, generator, regression model, risk

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Influence of Fuel Properties on Exhaust Emissions from Advanced Heavy-Duty Engines Considering the Effect of Natural and Additive Enhanced Cetane Number

Cited by 16 publications

References 1 publication

Factors Affecting Heavy-Duty Diesel Vehicle Emissions

Factors Affecting Heavy-Duty Diesel Vehicle Emissions

Evaluation of the NO_x emissions from heavy-duty diesel engines with the addition of cetane improvers

Modelling Carbon Monoxide Emission Level of Diesel Engine Generators in Nigeria

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Influence of Fuel Properties on Exhaust Emissions from Advanced Heavy-Duty Engines Considering the Effect of Natural and Additive Enhanced Cetane Number

Cited by 16 publications

References 1 publication

Factors Affecting Heavy-Duty Diesel Vehicle Emissions

Factors Affecting Heavy-Duty Diesel Vehicle Emissions

Evaluation of the NOx emissions from heavy-duty diesel engines with the addition of cetane improvers

Modelling Carbon Monoxide Emission Level of Diesel Engine Generators in Nigeria

Contact Info

Product

Resources

About

Evaluation of the NO_x emissions from heavy-duty diesel engines with the addition of cetane improvers