Reactivity Controlled Compression Ignition combustion and emissions using n-butanol and methyl oleate

Soloiu, Valentin; Moncada, Jose; Gaubert, Remi; Knowles, Aliyah; Ilie, Marcel; Harp, Spencer; Wiley, Justin T.

doi:10.1016/j.energy.2018.09.181

Cited by 32 publications

(8 citation statements)

References 30 publications

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“…The current work showed that the maximum RIN findings for conventional diesel fuel, B5, B10, B20, and B100 were computed to be 4.40 MW/m 2 , 4.39 MW/m 2 , 4.10 MW/m 2 , 4.14 MW/m 2 , and 4.23 MW/m 2 , respectively. As observed, the highest RIN values at full load operation were monitored when the tested engine operated with traditional diesel fuel because of its high apparent HRR characteristics, as pointed out by Soloiu et al [78]. As anticipated, the induction of alternating biodiesel fuel to the traditional diesel fuel provided reductions in the RIN values owing to the biodiesel's lubrication feature.…”

Section: Ringing Intensitysupporting

confidence: 61%

“…In this work, to evaluate the trend of the knock for the researched compression-ignition engine [76], the Ringing Intensity (RIN), also named as the ringing index, for each tested fuel sample at different engine loads was estimated using the following formula which was recommended by Soloiu et al [77,78]. RIN has been taken into consideration for the DI compression-ignition engine by Wei et al [79] even though this index has been completely implemented as the basic indicator to monitor the knock inclination for the homogenous charge compression-ignition engines.…”

Section: Methodology Of the Engine Testsmentioning

confidence: 99%

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The industrial-grade hemp (Cannabis sativa L.) seed oil biodiesel application in a diesel engine: combustion, harmful pollutants, and performance characteristics

Yılbaşı

Yeşilyurt

Yaman

et al. 2022

Sci. Tech. Energ. Transition

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The core focus of the present investigation is regarding biodiesel production from industrial hemp seed oil applying single-stage homogenous catalyzed transesterification process obtaining high yield of methyl ester. The engine tests were carried out on a single-cylinder, four-stroke, water-cooled, unmodified diesel engine operating with hemp seed oil methyl ester as well as its blends with conventional diesel fuel. The experimental findings of the test fuels were compared with those from diesel. The results pointed out that the performance and combustion behaviors of biodiesel fuels are just about in line with those of diesel fuel propensity. The specific fuel consumption for 5% biodiesel blend (0.291 kg/kW h), 10% biodiesel blend (0.305 kg/kW h), and 20% biodiesel blend (0.312 kg/kW h) blends at full load was closer to diesel (0.275 kg/kW h). In the meantime, the thermal efficiency for biodiesel was found to be at the range of 15.98–24.97% and it was slightly lower than that of diesel (18.10–29.85%) at the working loads. On the other hand, the harmful pollutant characteristics of carbon monoxide, hydrocarbon, and smoke opacity for biodiesel and its blends were observed to be lower in comparison with diesel during the trials. However, the oxides of nitrogen emissions for biodiesel were monitored to be as 6.85–15.40 g/kW h which was remarkably higher than that of diesel (4.71–8.63 g/kW h). Besides that, the combustion behaviors of biodiesel and its blends with diesel showed much the same followed those of diesel. Namely, the duration of ignition delay of biodiesel–diesel blends was shorter than that of diesel fuel because of the higher cetane number specification of the methyl ester. The highest gas pressures inside the cylinder as well as the rates of the heat release of biodiesel including test fuels are lower in contrast to the diesel due to the shorter ignition delay. It could be concluded that the utilization of biodiesel produced from industrial hemp seed oil in the diesel engine up to 20% (by vol.) will decrease the consumption of diesel and environmental pollution, especially in developing countries.

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Section: Ringing Intensitysupporting

confidence: 61%

Section: Methodology Of the Engine Testsmentioning

confidence: 99%

The industrial-grade hemp (Cannabis sativa L.) seed oil biodiesel application in a diesel engine: combustion, harmful pollutants, and performance characteristics

Yılbaşı

Yeşilyurt

Yaman

et al. 2022

Sci. Tech. Energ. Transition

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“…The errors used for the calculation are listed in Table 2. The overall percentage of uncertainty was ±2.155% [36][37][38].…”

Section: Analysis Of Uncertaintymentioning

confidence: 99%

Economic Considerations on Nutrient Utilization in Wastewater Management

Maroušek

Maroušková

2021

Energies

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There is wide consensus that Spirulina can serve as a tool for wastewater management and simultaneously provide feedstock for biorefining. However, the economic aspects associated with its use remain a significant challenge. Spirulina cultivated in wastewater decreased the concentrations of both ammonia and nitrate and also served as a biodiesel source. The oil obtained in the feedstock was subjected to transesterification and turned into biodiesel. The biodiesel was subsequently analyzed in a test motor (water-cooled, four-stroke, single-cylinder compression ignition with injection). The tests were conducted at a constant 1500 rpm, and the output power was 3.7 kW. Mixtures of diesel and biodiesel were also enriched with carbon nanotubes (CNTs). The amount of CNTs added to the diesel was 30 mg L−1. The algae and de-oiled biomass were characterized using XRD analysis, and an ultrasonicator was used to mix the CNTs with diesel and spirulina blends. A series of tests were conducted at different load conditions (25%, 50%, 75%, and 100%) for all fuel blends. Test results were compared with a neat diesel engine with a CR of 17.5:1. Among the fuel blends, the B25 reported improved brake thermal efficiency and reduced emissions. The outcomes are a reduction in thermal efficiency of 0.98% and exhaust gas temperature of 1.7%. The addition of Spirulina biodiesel blends had a positive impact on the reduction of greenhouse gas emissions, including reductions of 16.3%, 3.6%, 6.8%, and 12.35% of CO, NOx, and smoke, respectively. The specific fuel consumption and CO2 emissions were reduced by 5.2% and 2.8%, respectively, for B25 fuel blends compared to plain diesel and B50. Concerning cost competitiveness, vigorous research on microalgae for the production of biodiesel can cut production costs in the future.

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“…In addition, they stated that enhanced saturated methyl esters significantly decreased exhaust gas temperature and exhaust pollutants even though they required more fuel. [5][6][7] Bio-diesel with extra saturated constituents and relatively high oxygen levels exhibits low exhaust gas temperatures and lesser (carbon monoxide) CO and (hydrocarbon) HC emissions, though relatively high nitrogen oxide (NOx) emissions. 8 A multitude of research findings has demonstrated that using biofuel in diesel engines significantly reduces ejected exhaust emissions due to the fuel's high oxygen level.…”

Section: Introductionmentioning

confidence: 99%

Performance and emission analysis of single‐cylinder direct injection engine running with cottonseed‐ethyl oleate biodiesel blends

Singh

Rahim

et al. 2023

Env Prog and Sustain Energy

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In this study, the performance and exhaust emissions of a direct injection (DI) diesel engine are compared using blended fuels consisting of cottonseed oil (CSO) and ethyl oleate (EO) at various diesel proportions. The uniqueness of this work lies in the fact that it utilizes engine emission and performance studies with blended fuel made from CSO and EO at a higher volume (%) composition than is typically used. Biodiesel reduces brake‐specific fuel consumption (BSFC) compared to CSO, even though it is higher than diesel due to viscosity and heating value. The brake thermal efficiency (BTE) was enhanced until 800 rpm and afterward reduced as the engine's speed continued to increase. Among all the blends, BTE was recorded as highest for CE20D and minimum for CSO. Because EO was unsaturated, culminating in a reasonably short ignition delay, NOx emissions in fused biofuel were marginally more significant than in diesel. The concentrations of UHC and CO reduced as the concentrations of CSO and EO increased, caused by a rise in the oxygen concentration by mass portion. The results of the combustion and emission tests suggest that CE20D has the potential to be a sustainable alternative fuel.

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Reactivity Controlled Compression Ignition combustion and emissions using n-butanol and methyl oleate

Cited by 32 publications

References 30 publications

The industrial-grade hemp (Cannabis sativa L.) seed oil biodiesel application in a diesel engine: combustion, harmful pollutants, and performance characteristics

The industrial-grade hemp (Cannabis sativa L.) seed oil biodiesel application in a diesel engine: combustion, harmful pollutants, and performance characteristics

Economic Considerations on Nutrient Utilization in Wastewater Management

Performance and emission analysis of single‐cylinder direct injection engine running with cottonseed‐ethyl oleate biodiesel blends

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