Combustion of simulated biogas in a dual-fuel diesel engine

Henham, Alex; Makkar, Mahesh Kumar.

doi:10.1016/s0196-8904(98)00071-5

Cited by 129 publications

(40 citation statements)

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“…Although numerous works have been published over the last decades on the regulated gaseous emissions from natural gas (NG) operated dual fuel engines (Boisvert et al 1988;Wong et al 1991;Weaver and Turner 1994;Abd Alla et al 2000;Galal et al 2002;Papagiannakis and Hountalas 2004;Patterson et al 2006), only a very few of them are found to investigate either the smoke or PM emissions for the NG-diesel dual fuel engines (e.g., Boisvert et al 1988;Wong et al 1991;Papagiannakis and Hountalas 2004). On the other hand, a very limited number of published research works are found for biogas-diesel dual fuel engines especially from an emissions perspective such as Karim and Amoozegar (1982), Karim and Weirzba (1992), and Henam and Makkar (1998). Virtually no published research work is found during this research project that deals with the PM emissions from a biogas-diesel dual fuel engine.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Exhaust Particulates from a Dual Fuel Engine by TGA, XPS, and Raman Techniques

Mustafi

Raine

James

2010

Aerosol Science and Technology

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Particulate matter (PM) emitted from a dual fuel engine is characterized using thermogravimetry, X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Thermogravimetric analysis (TGA) provides the mass fractions of elemental carbon and volatile materials in PM; XPS provides the possible chemical compositions in the topmost layer of PM surface and Raman analysis provides the possible structure of the carbon presented in PM. Dual fuel engine uses both liquid (diesel) and gaseous fuels simultaneously to produce mechanical power and can be switched to only diesel fueling under load. The dual fuel engine is operated with natural gas and simulated biogases (laboratory prepared) and results are compared between the dual fueling and diesel fueling under the same engine operating conditions. Significantly higher volatile fractions in PM are obtained for dual fueling compared to diesel fueling complementing the gravimetric results. The maximum contribution of the graphitic carbon or aliphatic carbon such as hydrocarbons and paraffins (C C or C C) are found in the topmost atomic layers of both the diesel and dual fuel PM samples. The other chemical states are found to be the carbon-oxygen functional groups indicating significant oxidation behavior in the PM surface. Lesser aromatic content is noticed in the case of dual fuel PM than diesel PM. The carbon in dual fuel PM is found to be more amorphous compared to diesel PM. These characterizations provide us new information how the PM from a diesel engine can be different from that from a dual fuel engine.

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Section: Introductionmentioning

confidence: 99%

Characterization of Exhaust Particulates from a Dual Fuel Engine by TGA, XPS, and Raman Techniques

Mustafi

Raine

James

2010

Aerosol Science and Technology

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“…Bora et al [31] suggested increasing the compression ratio as a means to partially negate the reduction in brake thermal efficiency of the dual fuel mode. Simulated biogas is used by various researchers in dual fuel mode [56,[74][75][76]. Feroskhan and Ismail [77] used simulated biogas and reported that methane enrichment will enhance the brake thermal efficiency at low biogas flow rates.…”

Section: Performance Indicesmentioning

confidence: 99%

A review on the purification and use of biogas in compression ignition engines

Feroskhan¹,

Ismail²

2017

Int. J. Automot. Mech. Eng.

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Biogas is commonly produced during the decay of organic matter. It is a mixture of methane and some non-combustible gases such as CO2 and H2S. Its viability as a renewable alternative fuel for internal combustion engines can be enhanced by methane enrichment, i.e. removal of the non-combustible constituents. One of the common techniques for using biogas in a compression ignition (CI) engine is to mix it with air in the intake manifold, induct, and compress this mixture and ignite it by injecting a small quantity of diesel or bio-diesel, which is termed as the pilot fuel. This is known as the dual fuel mode. The pilot fuel is injected close to the end of the compression stroke as in a conventional CI engine and the injected fuel quantity depends on the operating condition. An alternative approach is the Homogeneous Charged Compression Ignition (HCCI) mode. Here, a homogeneous mixture of biogas and air is inducted and compressed by the piston until it auto-ignites. While this concept combines the benefits of spark ignition (SI) and CI engines, the onset of combustion cannot be controlled directly. A detailed review of recent research pertaining to biogas purification techniques and operation of CI engines with biogas in dual fuel and HCCI modes is presented in this paper. The effects of various operating parameters on engine performance and emissions, and comparison with conventional diesel fuelled CI engines are discussed. Biogas improves combustion efficiency, NOx, and smoke emissions. However, it reduces brake thermal efficiency, volumetric efficiency, and increases HC and CO emissions. Biogas fuelling of CI engines is recommended for achieving high diesel substitution, especially under high torque operation.

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“…The temperature and composition of combustion product gases are also important parameters in equipment design of biogas system. Previous researches had studied the combustion characteristic of biogas, many researchers studied the combustion performance of biogas in internal combustion SI and CI engine [8,[12][13][14][15][16][17][18][19][20], the characteristics in microgas turbine [21][22][23] and also specifically on the characteristics in biogas burner [5,[24][25][26][27][28][29][30]. Largely, the previous researches of combustion in biogas burner were done in a certain methane content of biogas, i.e.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Product and Temperature of Biogas Combustion in Various Air Biogas Equivalence Ratio and Methane Content

Wresta

Saepudin

2018

Indones. J. Chem.

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Biogas resulted from anaerobic digestion of organic compounds have various methane content depend on the type of the degraded material. The methane content of biogas is range between 40–80% that influence the heating value and combustion characteristic of that biogas. The higher methane content can be obtained through upgrading biogas by removing CO2 and other trace components like H2S, NH3, and water vapor. This research was a simulation of product composition and temperature of biogas combustion in various methane content and air biogas equivalence ratio. Biogas combustion was done in combustion chamber at constant pressure of 1 atm. Biogas and air enter into combustion chamber at temperature approximately of 30 °C as the common ambient temperature in Indonesia. The input air was designed higher than stoichiometric need in order to reach complete combustion. Combustion reaction between methane and O2 then carried out in the combustion chamber to produce CO2 and H2O. The product gases consisting of CO2, H2O, N2, and excess O2, bring heat from combustion reaction and exit from combustion chamber at the higher temperature. The analysis was done for methane content range between 20 and 100% with air biogas equivalence ratio from 1 until 3. The simulation result showed that for V m3 biogas, the combustion gases could reach 0.12271 until 1.26798V gmol with temperature above 700 °C until above 1900 °C. More than 50% component in the combustion gases is N2 as inert material from input air to combustion chamber.

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Combustion of simulated biogas in a dual-fuel diesel engine

Cited by 129 publications

References 1 publication

Characterization of Exhaust Particulates from a Dual Fuel Engine by TGA, XPS, and Raman Techniques

Characterization of Exhaust Particulates from a Dual Fuel Engine by TGA, XPS, and Raman Techniques

A review on the purification and use of biogas in compression ignition engines

Analysis of Product and Temperature of Biogas Combustion in Various Air Biogas Equivalence Ratio and Methane Content

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