Energetic and exergetic performance of a diesel engine fueled with diesel and microalgae biodiesel

Şanlı, Bengi

doi:10.1080/15567036.2019.1587097

Cited by 24 publications

(4 citation statements)

References 32 publications

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“…Furthermore, such trends regarding an identical engine speed for best engine efficiency under various definitions are consistent with earlier work [17,44]. Availability destruction is the source of the entropy production and efficiency reduction of thermodynamic systems [35].…”

Section: Resultssupporting

confidence: 88%

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Throttling effect on the availability and sustainability of a gasoline-fuelled spark ignited multi-cylinder engine

Hamada,

Ibrahim,

Rahim

et al. 2023

Eng. Res. Express

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Large energy waste is one of the internal combustion engine challenges, making it unsustainable and unfriendly to the environment. Charging the spark ignition engine with the required fuel-air mixture is associated with a particular quantity of energy loss due to flow throttling. Throttle position effect on the availability, sustainability, and environmental trends of a gasoline, spark-ignited engine was evaluated based on thermodynamic analyses of real experiments. The availability and sustainability analyses were performed utilizing the relations governing the thermodynamic system under various engine speeds (1500–4000 rpm) at part and wide-open throttle (POT and WOT) conditions. The results indicated that the WOT position mostly ensures the best sharing of useful availability, i.e., 2% greater, more sustainable, i.e., 3% better, and environmentally friendly, i.e., 16% healthier, engine operation for the entire tested speed range. On the other hand, an optimum engine speed, mostly 3000 rpm, of the tested engine yielded the maximum efficiencies, i.e., 3% higher, lowest entropy production, i.e., 15% lower, and best availability proportions, as well as the most sustainable and environmentally friendly operation mode. Furthermore, a considerable perspective of the waste heat recovery of the associated availability with exhaust gases was achieved under POT and WOT conditions. The acquired improvement in engine efficiency based on the recovery potential was in the range of 3% to 19.7% and 13.6% to 24% for the WOT and POT conditions, respectively. However, the detected recovery rate and efficiency improvement were randomly tended with engine speed variation. In terms of the recovery potential, the highest engine efficiencies were about 46% and 50% at 3000 rpm, for the POT and WOT conditions, respectively. Finally, in average around 10% and 52% increment with 20% and 24% reduction was detected for the environmental impact of the CO2, NOx, CO and HC, respectively, under the WOT condition in comparison with POT condition.

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Section: Resultssupporting

confidence: 88%

“…The degree of the system's sustainability reveals the depletion level of its resources, which is directly related to its irreversibility. The general formula of the sustainability index (SI) is summarized as a function of the second law of efficiency, which is stated as follows [35]:…”

Section: Methodology Of Analysismentioning

confidence: 99%

Throttling effect on the availability and sustainability of a gasoline-fuelled spark ignited multi-cylinder engine

Hamada,

Ibrahim,

Rahim

et al. 2023

Eng. Res. Express

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“…The SI values presented in Figure 6 were calculated to be 1.331 for diesel fuel, 1.325 for E15B35D50, and 1.323 for E15B35FTD50. It has been previously reported byŞanli [71] that that pure diesel had higher SI than biodiesel. The researcher discussed that the SI is directly related to the exergy efficiency and that this efficiency was higher for the diesel than for the biodiesel because the LHV of the diesel was greater than that of biodiesel.…”

Section: Exergy Analysismentioning

confidence: 75%

Fischer-Tropsch Diesel and Biofuels Exergy and Energy Analysis for Low Emissions Vehicles

et al. 2021

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This research investigates the effects of a synthetic diesel-like fuel (Fischer-Tropsch diesel) and biofuels (ethanol and biodiesel) fuel blends on the energy-exergy efficiencies and gaseous exhaust emissions characteristics of a compression ignition engine. Two blends of alternative fuels denoted as E15B35FTD50 (15% ethanol, 35% biodiesel, and 50% Fischer-Tropsch diesel) and E15B35D50 (15% ethanol, 35% biodiesel, and 50% diesel) were experimentally studied on a single-cylinder diesel engine and compared to diesel fuel. The results show that the energetic and the exergetic efficiencies of the alternative fuels are comparable to those of the engine fueled with diesel fuel. The unburnt HC, NO, N2O, and NH3 emissions were reduced for the two alternative fuel blends compared to diesel, while CO emissions increased. The light HC species were found to slightly increase for the alternative fuel blends in comparison with diesel fuel. However, the total HC was considerably reduced by the combustion of E15B35FTD50 not only when compared to the diesel fuel combustion, but also when compared to E15B35D50. Overall, these results may contribute to identifying advantages and limitations in terms of energetic-exergetic analysis and emissions for the new generation of conventional diesel and hybrid electric vehicles that aim to achieve future emissions regulations.

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“…Sayin Kul and Kahraman [17] analyzed a diesel engine using a biodiesel and bioethanol blend, achieving nearly the same performance as traditional diesel. Şanli [18] examined biodiesel from microalgae in a four-cylinder engine, finding it comparable to conventional diesel, especially at higher speeds, and supporting its use in internal combustion engines. Several researchers are focusing on the impact of nanoparticles in biodiesel to enhance diesel engine performance.…”

Section: Introductionmentioning

confidence: 93%

Enhancing Diesel Engine Performance with Different Concentrations of Copper Oxide Nanoparticles in Biodiesel Blends

Akroot,

Kareem,

Alfaris

et al. 2024

IJDNE

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Energetic and exergetic performance of a diesel engine fueled with diesel and microalgae biodiesel

Cited by 24 publications

References 32 publications

Throttling effect on the availability and sustainability of a gasoline-fuelled spark ignited multi-cylinder engine

Throttling effect on the availability and sustainability of a gasoline-fuelled spark ignited multi-cylinder engine

Fischer-Tropsch Diesel and Biofuels Exergy and Energy Analysis for Low Emissions Vehicles

Enhancing Diesel Engine Performance with Different Concentrations of Copper Oxide Nanoparticles in Biodiesel Blends

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