The effect of combustion management on diesel engine emissions fueled with biodiesel-diesel blends

Hoseini, S.S.; Najafi, G.; Ghobadian, Barat; Mamat, Rizalman; Sidik, Nor Azwadi Che; Azmi, W.H.

doi:10.1016/j.rser.2017.01.088

Cited by 112 publications

(29 citation statements)

References 209 publications

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“…The residual products from the consumption of fossil fuels and other sources generate pollutants that are released into the atmosphere; some of these that are worth mentioning are: carbon oxides, nitrogen, sulfur, metallic compounds, suspended particles, and ashes [2]. In particular, carbon dioxide (CO 2 ) emissions contribute to 92% of the total emissions generated worldwide in energy production.…”

Section: Introductionmentioning

confidence: 99%

Environmental Impact Associated with the Supply Chain and Production of Biodiesel from Jatropha curcas L. through Life Cycle Analysis

et al. 2018

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Abstract:The energy market is diversifying, allowing for the development of biofuels that seek to reduce environmental impact and be energetically competitive with conventional fuels. One of the aforementioned biofuels is the biodiesel that is produced from the oil extracted from the seeds of Jatropha curcas L. This research uses life cycle analysis (LCA) tool to analyze the following environmental impacts associated with its production: energy, water footprint, carbon footprint, mineral resource depletion, fossil resource depletion, terrestrial ecotoxicity, and human toxicity. The following stages were evaluated: (i) cultivation, (ii) the extraction of oil, and (iii) the biodiesel manufacturing process. The results showed that the overall process has an accumulated energy demand of 37.9 MJ/kg biodiesel, and generates 2.16 kg CO 2 eq. of greenhouse gases (GHG) per kg of biofuel. The cultivation stage had the greatest contribution towards its energy and carbon footprints, taking up 45% and 60%, respectively. However, considering the energy valorization of the coproducts that are generated in the agricultural and extraction stages for self-consumption into the product system, both categories of impact mentioned above were reduced by 35% and 41%, respectively.

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Section: Introductionmentioning

confidence: 99%

Environmental Impact Associated with the Supply Chain and Production of Biodiesel from Jatropha curcas L. through Life Cycle Analysis

et al. 2018

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“…Diesel engines have been complying with strict emission regulations by employing post-combustion treatment systems such as selective catalytic reduction (SCR) and diesel particulate filters (DPF) [1][2]. As the regulations become stricter to ensure low emissions under real driving conditions, diesel engines must increase the thermal efficiency and reduce the emissions through precise combustion control without relying on the post-combustion treatment systems.…”

Section: Introductionmentioning

confidence: 99%

Development of On-Board In-Cylinder Gas Flow Model for Heat Loss Estimation of Diesel Engines

Ichiyanagi

Kojima

Joji

et al. 2018

International Journal of Industrial Research and Applied Engineering

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Diesel engines have been demanded to further increase the thermal efficiency through precise engine control under transient driving conditions, especially, it is essential to optimize the fuel injection timing and quantity cycle-by-cycle. Conventionally, fuel injection have been controlled by control maps, which resulted in large numbers of experiments and increase in cost. In order to overcome these problems, the present study focused on the model-based control and developed the onboard gas flow model, because the heat loss is affected by the turbulent intensity. Firstly, a validation of the CFD simulation is evaluated. The CFD simulation was used to validate the developed models and to determine unknown parameters used in the model. Secondly, modeling of in-cylinder gas flow is presented. To estimate the injection timing within 0.5 deg. against the target value, the heat loss must be estimated within the error range of 7.6%. Finally, as results, the error of heat loss obtained from gas flow model was 1.6%, and gas flow model fully met the requirement of tolerance range. From the viewpoint of calculation time, the calculation time of the model was 50.6 s per cycle, and thus the model is capable of the use of on-board applications.

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“…One of the common methods to improve the properties of vegetable oils is transesterification reaction [13][14][15]. Various studies have been conducted on the production of biodiesel from vegetable oils [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]. D. Patil et al [34] evaluated three different types of feedstocks, namely, waste cooking oils, jatropha curcas, and camelina, for biodiesel production under various conditions.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Camelina “Soheil” as a Novel Biodiesel Fuel on the Performance and Emission Characteristics of Diesel Engine

et al. 2018

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Abstract:In this research, a new cultivar of Camelina "Soheil" seed oil (CSO) was investigated as a novel feedstock for biodiesel production. Maximum oil content of CSO seed was about 29%. Physical and chemical characteristics of CSO were investigated. The biodiesel production process was optimized by using the response surface methodology (RSM) reaction parameters, including molar ratio (methanol to oil), reaction time, and concentration of catalyst are studied. The result showed that the conversion of biodiesel was 98.91% under the optimized conditions of 10.18:1 molar ratio and 1.15 wt % concentration of catalyst for a reaction time of 7.33 min. By investigating the properties of the fuel, it turned out that biodiesel from new cultivar of CSO oil complied with the limits prescribed in the ASTM D6751 standards, and that this seed oil could be introduced as a new feedstock for biodiesel production. Also, the performance and emission of a diesel engine were investigated with CSO biodiesel. All of the engine experiments were performed under the constant speed of 2100 rpm at loads of 0%, 25%, 50%, 75%, and 100%. Results indicated that by using the biodiesel-diesel blends, the brake power, and the CO 2 and NOx emissions increased, while the SFC and CO and UHC emissions decreased.

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The effect of combustion management on diesel engine emissions fueled with biodiesel-diesel blends

Cited by 112 publications

References 209 publications

Environmental Impact Associated with the Supply Chain and Production of Biodiesel from Jatropha curcas L. through Life Cycle Analysis

Environmental Impact Associated with the Supply Chain and Production of Biodiesel from Jatropha curcas L. through Life Cycle Analysis

Development of On-Board In-Cylinder Gas Flow Model for Heat Loss Estimation of Diesel Engines

The Effects of Camelina “Soheil” as a Novel Biodiesel Fuel on the Performance and Emission Characteristics of Diesel Engine

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