Effects of diethyl ether (DEE) injection on combustion performance and emission characteristics of Karanja methyl ester (KME)–biogas fueled dual fuel diesel engine

Barik, Debabrata; Murugan, S.

doi:10.1016/j.fuel.2015.09.094

Cited by 122 publications

(67 citation statements)

References 59 publications

(38 reference statements)

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“…The study also showed that NOx and PM emissions can be simultaneously reduced for the dual fuel operation, though CO and HC emissions increased [57]. Effects of DEE in KME-biogas dual fuel mode were reported by Barik and team [70]. An increase in DEE reduces CO, NOx, and smoke emissions.…”

Section: Emission Indicesmentioning

confidence: 67%

“…They studied the effects of various concentrations of diethyl ether (DEE) as an ignition improver [70] and different injection timings [71]. Addition of DEE increases cylinder peak pressure and reduces combustion duration.…”

Section: Combustion Indicesmentioning

confidence: 99%

“…Barik and Murugan [33] also noted a reduction in volumetric and brake thermal efficiencies on increasing the biogas flow rate. Increase of DEE concentration in KME-biogas has been shown to reduce brake thermal efficiency and exhaust gas temperature and increase BSFC of a dual fuel engine [70]. Advancing injection timing increases brake thermal efficiency and exhaust gas temperature and reduces BSFC.…”

Section: Performance Indicesmentioning

confidence: 99%

“…The effects of injection timing, intake charge temperature, and biogas energy ratio were studied. The best injection timing, intake charge temperature, and biogas energy ratio were found to be [55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70] o BTDC, 50 -90 o C. and 80%, respectively. By advancing the diesel injection timing, the homogeneity of the lean mixtures was enhanced.…”

Section: Combustion Indicesmentioning

confidence: 99%

See 3 more Smart Citations

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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Section: Emission Indicesmentioning

confidence: 67%

Section: Combustion Indicesmentioning

confidence: 99%

Section: Performance Indicesmentioning

confidence: 99%

Section: Combustion Indicesmentioning

confidence: 99%

See 2 more Smart Citations

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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“…Studies had shown that cavitation inside the injector assists the fuel spray in better mixing with air [17,18]. Due to its higher saturation pressure, DEE tends to cavitate more compared to diesel, thereby increasing the exit velocity of the fuel from the injector which may increase the depth of penetration off or the fuel [19,20].…”

mentioning

confidence: 99%

Addressing Nox - Smoke Trade off in a Direction Injection Diesel Engine With Fuel Blends of Diethyl Ether and Diesel

Vijayakumar¹

2017

IJMPERD

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In this research work, an experimental investigation was carried out to study the combustion, performance and emission characteristics of a single cylinder water cooled diesel engine, when fueled with blends of diethyl ether and diesel. Three different blends with 5%, 10% and 15% of diethyl ether were tested and compared with neat diesel fuel at different load conditions. Fuel consumption, in-cylinder pressure and exhaust emissions were measured at all load conditions. When compared to neat diesel fuel, the blends of diethyl ether exhibited reduced carbon monoxide, nitrogen oxide and smoke emissions with increased hydrocarbon emissions. Lower brake specific energy consumption and increased brake thermal efficiency were observed for the blended fuels. The in-cylinder peak pressure and the heat release rate for blended fuels were lower compared to the diesel fuel. It was evident from the experimental results that 15% of diethyl ether blend has the potential of overcoming the existing NO x -smoke trade-off in diesel engines.

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Eco‐friendly biodiesel production using passion fruit peels and cupuaçu seeds: Catalyst development and process optimization

Barros,

Nobre,

Lobo

et al. 2023

Biofuels Bioprod Bioref

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Yellow passion fruit peel and cupuaçu seeds are common wastes. Usually, they have few or no applications and are discarded, causing environmental pollution. To use them in a new way and reduce ecological pollution, we obtained the ash of yellow passion fruit peels by calcination. We characterized it using Fourier‐transform infrared spectroscopy with attenuated total reflectance (FTIR‐ATR), X‐ray fluorescence (XRF), X‐ray diffractometry (XRD), adsorption‐desorption of N2, scanning electron microscopy (SEM), basicity, and soluble alkalinity. It was observed that the ash was mainly composed of potassium (69%) in the form of carbonate, chloride, and sulfate, with a good surface area (11.23 m2 g−1). The cupuaçu butter was also extracted from the cupuaçu seeds and characterized, showing low acidity, peroxide, saponification, and iodine indexes, in addition to presenting a lipid profile with 57% saturated fatty acid and 43% unsaturated fatty acid. Oleic and stearic acids were present in higher proportions. These results demonstrate that this butter can be a sustainable input in biodiesel production. Thus, the ash was used as a heterogeneous catalyst in the butter transesterification. The biodiesel synthesis was optimized, resulting in 97.8% butter conversion into biodiesel under the following conditions: reaction time of 2 h, 5 wt% of catalyst, 80 °C, and a methanol‐to‐oil molar ratio of 30. This work, therefore, shows that it is possible to obtain and utilize bioinputs, such as cupuaçu butter and passion fruit peel ash, to produce biodiesel through transesterification, and the use of waste materials (precisely passion fruit peels and cupuaçu seeds) makes this method a cost‐effective and environmentally friendly approach to biofuel production.

show abstract

Effects of diethyl ether (DEE) injection on combustion performance and emission characteristics of Karanja methyl ester (KME)–biogas fueled dual fuel diesel engine

Cited by 122 publications

References 59 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

Addressing Nox - Smoke Trade off in a Direction Injection Diesel Engine With Fuel Blends of Diethyl Ether and Diesel

Eco‐friendly biodiesel production using passion fruit peels and cupuaçu seeds: Catalyst development and process optimization

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