Effects of oxygen enriched air on the operation and performance of a diesel-biogas dual fuel engine

Cacua, Karen; Amell, Andrés; Cadavid, Francisco

doi:10.1016/j.biombioe.2012.06.003

Cited by 112 publications

(42 citation statements)

References 10 publications

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“…Exergy efficiency was found to be higher and percentage exergy destruction lower for the dual fuel mode. Raising the oxygen content in air from 21% to 27% has been reported to improve the brake thermal efficiency of a biogas-diesel dual fuel engine from 15 to 18% [32]. In a biogas-DME dual fuel engine, IMEP was observed to fall with an increase in biogas content for retarded pilot injection, whereas the trend was opposite for injection advance more than 20 o bTDC [59].…”

Section: Performance Indicesmentioning

confidence: 98%

“…This improves the reaction rate and flame propagation. Raising the oxygen content in air from 21% to 27% has been reported to shorten the ignition delay by nearly 3 o CA [32]. Ignition delay is lower for thermal barrier coated dual fuel engine compared to normal dual fuel engine [66].…”

Section: Combustion Indicesmentioning

confidence: 99%

“…CO emissions do not show a definite trend. By attenuating combustion instabilities, oxygen enrichment allows greater substitution of diesel by biogas [32]. EGR reduces the lean operating limit and combustion efficiency, while NOx emissions are lowered.…”

Section: Emission Indicesmentioning

confidence: 99%

“…Anaerobic digesters exist in various designs such as fixed dome type and floating drum type [21]. [32] 6.05…”

Section: Biogas Production and Purificationmentioning

confidence: 99%

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

Feroskhan¹,

Ismail²

2022

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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Section: Performance Indicesmentioning

confidence: 98%

Section: Combustion Indicesmentioning

confidence: 99%

Section: Emission Indicesmentioning

confidence: 99%

“…Anaerobic digesters exist in various designs such as fixed dome type and floating drum type [21]. [32] 6.05…”

Section: Biogas Production and Purificationmentioning

confidence: 99%

See 2 more Smart Citations

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

Feroskhan¹,

Ismail²

2022

Int. J. Automot. Mech. Eng.

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“…However, it can vary widely, depending on the organic waste from which it is produced; the different nutrient composition (protein, fat, carbohydrates) of the substrates is one of the main reasons for the different methane content [38]. AIso the degree of compaction of that material along with its humidity and temperature and pH [39] have an influence, as well as the gas production method used [40][41][42]24,43,26] (controlled degasification of landfills, anaerobic digestion, etc).…”

Section: Introduetionmentioning

confidence: 99%

Energetic performance of landfill and digester biogas in a domestic cooker

2014

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Performance, rate of heat release, and combustion stability of dual‐fuel mode in a small diesel engine

Oishi

Situmorang

Sembiring

et al. 2019

Energy Science & Engineering

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Biodiesel fuel and biogas fuel as promising alternative energy sources for dual‐fuel‐mode diesel engine attract more researchers. Therefore, this study highlights the dual‐fuel mode (DFM) operation of diesel engine using biodiesel fuel from used cooking oil and simulated biogas fuel with different methane contents (M40, M60, M80, and M100) on the combustion, rate of heat release, combustion stability, and performance. The observation of diesel engine was conducted by varying the torques from 3.5 Nm, 10.5 Nm, 17.6 Nm, and 24.6 Nm and by varying the engine speeds from 1800 rpm, 2000 rpm, 2200 rpm, 2400 rpm, and 2600 rpm, respectively. It was found that in DFM at a low torque the thermal efficiency decreased, but biogas replacement, biogas energy, and sfc values increased. The relation of the results of biodiesel replacement, biogas energy ratio, and brake thermal efficiency with methane content ratio in DFM show that the methane content ratio has the maximum effect in DFM. In addition, the carbon dioxide content in the biogas can enrich the brake thermal efficiency. The combustion stability of all conditions (1.7%‐4.89%) is still acceptable.

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Effects of oxygen enriched air on the operation and performance of a diesel-biogas dual fuel engine

Cited by 112 publications

References 10 publications

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

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

Energetic performance of landfill and digester biogas in a domestic cooker

Performance, rate of heat release, and combustion stability of dual‐fuel mode in a small diesel engine

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