Effect of pilot fuel injection operating pressure in hydrogen blended compression ignition engine: An experimental analysis

Quadri, Syed Azam Pasha; Masood, M.; Kumar, P. Ravi

doi:10.1016/j.fuel.2015.04.068

Cited by 31 publications

(14 citation statements)

References 13 publications

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“…At 225 bar, due to appropriate break-down and combination, the utmost percentage of carbon content burnt and formation of HC very much lowered. Additional enhance of IOP to 250 bar gives maximize the development of HC due to shorter delay time and rapid burning (Quadri et al, 2015). The least amount HC content was noticed for diesel mode at 225 bar i.e., 49 ppm when compared to 54 ppm for B10 (90D +10WCO), 61 ppm for B20 (80D +20WCO) and 64 ppm for B30 (70D +30WCO) for the same injection operating pressure.…”

Section: Brake Specific Fuel Consumptionmentioning

confidence: 94%

Experimental Trails on Diesel Engine Performance and Emission Characteristics of Waste Cooking Oil Combinations at Varying Injection Pressures

Alghafis¹,

Basha²

2021

American Journal of Applied Sciences

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Progressive rising of conventional fuel prices, as well as the high strengthened necessities of the environmental norms to reduce the atmospheric pollution levels, are flattering great challenges to scientists and researchers all over the world. In this regard, biofuels have become one of the best alternative fuels for conventional IC engine operation with reduced emissions and improved performance. Goal of paper is to study the influence on emissions and performance variables in one cylinder CI engine fueled accompanied by diesel-waste cooking oil mixtures. The test rig was operated at rated speed 1500 rpm, CR 17.5 and at variable injection operating pressure of 200, 225 and 250 bar correspondingly. Different fuel mixtures of diesel-waste cooking oil i.e., B10, B20 and B30 on mass basis were used for this study. As compared to neat diesel at standard Injection Operating Pressure (IOP) 200 bar, increased IOP 225 bar exhibits utmost BTE, nominal quantity BSFC, minimum CO and HC pollutions with the superior concentration of NOx emissions. In contrast, by using WCO blends, the performance of the engine reduced along with the emissions except HC.

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Section: Brake Specific Fuel Consumptionmentioning

confidence: 94%

Experimental Trails on Diesel Engine Performance and Emission Characteristics of Waste Cooking Oil Combinations at Varying Injection Pressures

Alghafis¹,

Basha²

2021

American Journal of Applied Sciences

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“…This due to complete combustion of fuel, which may be responsible for higher temperature. The minimum value 172 ppm of NOx emission was observed at lowest IP 180 bar among all IP with selected blend at peak load condition [27].…”

Section: Optimum Ip Selection For Best Blend (D-mxee5-nm25)mentioning

confidence: 87%

Effect of additives and injection pressure on performance of CI engine

Mahar¹,

Kumar²,

Agarwal³

et al. 2020

SKIT Research Journal

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Diesel engine contributes the most in the field of automobile, agriculture, construction and power generation, Due to serious environmental problem and rising cost of diesel, lot of research work is going on to replace conventional source of energy by a renewable source of energy. Diesel engine cannot be replaced because of its efficient performance at higher power and reliability with alternative engines. Diesel engines emissions contribute the most in the environmental problem, which is causing serious health problems for humans. The major emissions are smoke and NOx which need to be controlled in an effective manner. To find out the suitable additives to reduce exhaust emissions an enhance performance of CI engine, this experiment was carried out. For this purpose, detailed experiments were conducted with different sets of diesel-2-methoxy ethyl ethernitromethane blends. Mixing of 5% MXEE and 2.5% NM with 92.5% diesel on volume basis (D-MXEE5-NM2.5) showed optimum results of emission and performance. Compared to the fuel mixture D-MXEE5-NM2.5 with diesel, an increase in BTE was found to be 4.90% and a decrease in smoke by 25.28%. However NOx increased by 17.94%.

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“…HC emission increased for all test fuels with load, and there was a reduction in HC emission for biodiesel compared to diesel due to the presence of oxygen in its molecular structure that led to an efficient combustion [29,31]. The decreasing trend of UHC was observed with increasing %age of H2 substitution when compared with pure diesel because of its high flammability limit and calorific value [32]. At 225 bar, proper atomisation and mixing with maximum %age of burnt carbon content were achieved and UHC formation was greatly minimised.…”

Section: Unburned Hydrocarbonmentioning

confidence: 93%

Analysis of hydrogen enriched treble biofuel blended with diesel for performance, emission and combustion characteristics on CI engine

Fakhruddin¹,

Ali²,

Hussain³

2017

Int. J. Automot. Mech. Eng.

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The need of the hour is to look forward to alternative fuels to swipe out the dependence on fossil fuels, as biofuels from various feedstocks are being experimented worldwide. However, it is difficult to implement biodiesel from a single feedstock to replace the existing fossil fuels. It is reliable to obtain biodiesel from local feedstock and to make multiple biodiesel mixtures blended with diesel. The present work relies more on biofuels and acts as a step towards fossil fuel-free engine or at least to snatch the lion's share of the fossil fuels. In this contest, the experiment was carried out by using treble biofuels i.e., WCOBD + PSBD + Bio-hydrogen at different injection pressures (i.e., 200bar, 225bar and 250bar) and compared them with a similar engine that utilised fossil fuel as the stand-alone fuel. The mixture ratios were B10, B20 and B30 and the enrichment of hydrogen was done at 4lpm, 6lpm and 8lpm. The results showed that the brake thermal efficiency of dual biofuel blended diesel decreased as compared to that of the base fuel and increased with hydrogen enriched biodiesel. Hence, the brake specific energy consumption decreased for the hydrogen enriched fuel and the exhaust emissions of CO and CO2 were reduced, however, NOx showed an increasing trend as usual.

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Effect of pilot fuel injection operating pressure in hydrogen blended compression ignition engine: An experimental analysis

Cited by 31 publications

References 13 publications

Experimental Trails on Diesel Engine Performance and Emission Characteristics of Waste Cooking Oil Combinations at Varying Injection Pressures

Experimental Trails on Diesel Engine Performance and Emission Characteristics of Waste Cooking Oil Combinations at Varying Injection Pressures

Effect of additives and injection pressure on performance of CI engine

Analysis of hydrogen enriched treble biofuel blended with diesel for performance, emission and combustion characteristics on CI engine

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