Emission characteristics of high speed, dual fuel, compression ignition engine operating in a wide range of natural gas/diesel fuel proportions

Papagiannakis, Roussos G.; Rakopoulos, C.D.; Hountalas, D. T.; Rakopoulos, Dimitrios C.

doi:10.1016/j.fuel.2009.11.001

Cited by 346 publications

(135 citation statements)

References 31 publications

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“…Numerous research works on experimental and theoretical investigations concerning the dual fuel diesel-natural gas operating mode have been reported over the last decades in the literature [12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Combustion and emissions characteristics of a dual fuel engine operated on alternative gaseous fuels

Mustafi

Raine

Verhelst

2013

Fuel

196

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Among the different efforts towards the reduction in pollutant emissions from direct injection (DI) diesel engines, the use of gaseous fuels as a partial supplement for diesel fuel has been proposed by many researchers. These engines are known as dual fuel engines. An experimental investigation was performed to investigate the influence of dual-fuel combustion on the performance and exhaust emissions of a DI diesel engine fueled with natural gas (NG) and biogas. In this work, the combustion pressure and the rate of heat release were evaluated experimentally in order to analyze the combustion characteristics and their effects on exhaust emissions including particulate matter (PM) for single-fuel (diesel) and dual fuel combustion modes. The use of NG as an alternative fuel is a promising solution.Biogas, on the other hand, is a renewable alternative fuel that has tremendous potential to be used in diesel engines especially in developing nations. Comparative results are presented revealing the effect of dual fuel combustion on engine performance and exhaust gaseous and PM emissions for the engine operating conditions considered in this study.

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Section: Introductionmentioning

confidence: 99%

Combustion and emissions characteristics of a dual fuel engine operated on alternative gaseous fuels

Mustafi

Raine

Verhelst

2013

Fuel

196

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“…Also, type of thermodynamic process must be specified. In this work, the process was chosen to be "adiabatic temperature and composition at constant volume" which is identical to those in internal combustion engines [7] [8] [9]. The chemical reactions approach which lead to formation of such emissions is beyond the scope of this work, more details can be found in [10].…”

Section: Methods Of Prediction Emissions From Burned Methane Fuelmentioning

confidence: 99%

Influence of Combustion Initial Conditions on Emissions Production Rates and Released Heat for Methane Fuel Mixtures

Alshahrani¹

2017

WJET

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An estimation of combustion products (pollutants) which include CO, CO 2 and NO mole fraction are reported in this paper for premixed methane/air flames. Different mixtures were used in this study, including lean, stoichiometric and rich subjected to varying degrees of pressures and temperatures ranging from 5 -40 bars and 350 -600 K, respectively. In this work, computer software was used to calculate the produced emissions species as well as the final (adiabatic) temperatures for each mixture. Results show that rich mixture of methane fuel produces the highest rate for carbon monoxide (CO) with slight increase as pressure and temperature increase. Where the stoichiometric mixture produces the highest rate of carbon dioxide (CO 2 ). Results showed that this type of emission decreases with the increase of pressure and temperature. On the other hand, nitric acid (NO) was found to be the highest for the lean mixture with sharp increase as pressure and temperature increase. Finally, the combustion heat (Q) for each mixture where plotted against pressure and it was found that the rich mixture of methane produced the highest rates. Results also showed that combustion heat increases sharply with increased pressures and temperatures.

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“…The combustion of natural gas-diesel engines has been studied thoroughly, see for example [6][7][8][9][10].…”

Section: Motivationmentioning

confidence: 99%

“…In both approaches, the controller presented in Section 2.1 is used in order to fulfill the equality constraint given by Equation (8). This controller manipulates the duration of injection DOI to control the center of combustion COC.…”

Section: Diesel-minimal Combustion Control Using Extremum Seekingmentioning

confidence: 99%

Diesel-Minimal Combustion Control of a Natural Gas-Diesel Engine

2016

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This paper investigates the combustion phasing control of natural gas-diesel engines. In this study, the combustion phasing is influenced by manipulating the start and the duration of the diesel injection. Instead of using both degrees of freedom to control the center of combustion only, we propose a method that simultaneously controls the combustion phasing and minimizes the amount of diesel used. Minimizing the amount of diesel while keeping the center of combustion at a constant value is formulated as an optimization problem with an equality constraint. A combination of feedback control and extremum seeking is used to solve this optimization problem online. The necessity to separate the different time scales is discussed and a structure is proposed that facilitates this separation for this specific example. The proposed method is validated by experiments on a test bench.

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Emission characteristics of high speed, dual fuel, compression ignition engine operating in a wide range of natural gas/diesel fuel proportions

Cited by 346 publications

References 31 publications

Combustion and emissions characteristics of a dual fuel engine operated on alternative gaseous fuels

Combustion and emissions characteristics of a dual fuel engine operated on alternative gaseous fuels

Influence of Combustion Initial Conditions on Emissions Production Rates and Released Heat for Methane Fuel Mixtures

Diesel-Minimal Combustion Control of a Natural Gas-Diesel Engine

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