Emission and Performance Evaluation of a Diesel Engine Using Addition of Ethanol to Diesel/Biodiesel Fuel Blend

Freitas, Emmanuelle Soares de Carvalho; Guarieiro, Lílian Lefol Nani; Silva, Marcus Vinícius Ivo da; Amparo, Keize Katiane dos Santos; Machado, Bruna Aparecida Souza; Guerreiro, Egídio Teixeira de Almeida; Jesus, José Fernando Carneiro de; Torres, Ednildo Andrade

doi:10.3390/en15092988

Cited by 14 publications

(12 citation statements)

References 45 publications

(73 reference statements)

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“…NO x emissions are the primary pollutants emitted during the combustion of fuel in diesel engines, and NO x causes climatic impacts as well as health concerns . NO x emissions are influenced by various factors of the fuel, including the air–fuel interaction in combustion, the combustion temperature in the cylinder, residence time, density, cetane number, and oxygen content. ,, Figure b shows the NO x emissions for diesel, RCPOM, and fuel blends at various engine speeds and loads.…”

Section: Resultsmentioning

confidence: 99%

“…Krishna et al, 29 Kaulani et al, 31 and de Oliveira et al 33 reported that increasing the concentration of ethanol in the fuel decreased BTE and increased BSFC for a maximum ethanol content of 15% when compared to diesel. Freitas et al 34 found that adding 10% ethanol to a diesel−biodiesel−ethanol blend reduced torque and brake power (P b ) by 6%. However, the thermal efficiency of each fuel was not considerably different.…”

Section: Introductionmentioning

confidence: 99%

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Investigating the Effect of a Diesel–Refined Crude Palm Oil Methyl Ester–Hydrous Ethanol Blend on the Performance and Emissions of an Unmodified Direct Injection Diesel Engine

2023

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In this research, the optimum condition for the production of refined crude palm oil methyl ester from refined crude palm oil was investigated using the response surface method via the transesterification reaction in a batch process. The refined crude palm oil was obtained by vacuum distillation of crude palm oil to extract some of the free fatty acids from the oil, providing nutritional benefits and reducing the chemical consumption of the production process. The purity of methyl ester in the refined crude palm oil methyl ester was studied to adjust four independent variables: methanol content (11–23 vol %), concentration of potassium hydroxide (4–12 g/L), stirrer speed (100–500 rpm), and reaction time (9–45 min). The results showed that methyl ester had a purity of 96.91 wt % when synthesized under optimal conditions of 18.2 vol % methanol, a potassium hydroxide concentration of 10.0 g/L, a stirring speed of 380 rpm, and a reaction time of 36.4 min at 60 °C. Refined crude palm oil methyl ester was blended with diesel and ethanol to study the feasibility of using the diesel–refined crude palm oil methyl ester–hydrous ethanol blend in an unmodified diesel engine. A comparative study of fuel properties, emissions, and performance of the diesel–refined crude palm oil methyl ester–ethanol blend was used to assess the feasibility of fuel blends (D40RM50E10, D30RM60E10, D20RM70E10, and D10RM80E10) in diesel engines at various engine speeds and loads. The results showed that the D40RM50E10 blend provided the closest performance to diesel and was environmentally friendly, as it provided nitrogen oxide and carbon monoxide emissions 32 and 55% lower than those with diesel, respectively. The test results indicated that the diesel–refined crude palm oil methyl ester–hydrous ethanol blend is an attractive alternative fuel in agricultural engines that reduces diesel consumption and benefits farmers and rural communities.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigating the Effect of a Diesel–Refined Crude Palm Oil Methyl Ester–Hydrous Ethanol Blend on the Performance and Emissions of an Unmodified Direct Injection Diesel Engine

2023

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“…This work focuses on one speed (1500 rpm) because a relatively high torque of a similar mechanical diesel engine was obtained for diesel/ethanol blends at this speed (Freitas et al, 2022). 4.1 Brake Power of diesel engine Figure 4 shows the brake power of engine and torque of the tested diesel engine using diesel and modified diesohol (D85E15G1.2DT-C1).…”

Section: Engine Performance Testmentioning

confidence: 99%

Glycerol Monostearate and Distilled Cashew Nut Shell Liquid as Additives for Diesohol

Kaewchada¹,

Bangjang²,

Jaree³

2022

j.appsci

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This research involved the phase stability and fuel properties of the mixture of diesel and ethanol with GMS (glycerol monostearate) and distilled Cashew Nut Shell Liquid (DT-CNSL). The viscosity, acid value, oxidation stability and cetane index were measured in order to compare with diesel standards. Diesel engine performance and exhaust emission were investigated in terms of brake power of diesel engine, brake specific fuel consumption and exhaust gas temperature. Phase stability of diesel and ethanol blend was observed that a minimum threshold limit of 1.2 wt.% of GMS provided a homogeneous mixture. The most promising fuel blend was 85% of diesel and 15% of ethanol with 1.2 wt.% GMS and 1 vol.% DT-CNSL (DE15G1.2DT-C1). The inductive period of the fuel blends decreased with increasing concentration of DT-CNSL due to its antioxidant characteristics. As for the performance of diesel engine, at the speed of 1,500 rpm, the fuel blend has higher brake specific fuel consumption than diesel. On the other hand, the properties of fuel blend have similar the brake power of engine and exhaust gas temperature to pure diesel.

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“…Another method used to reduce exhaust emissions is the use of various alternative fuels to power engines. Currently, the most studied alternative fuels for compression ignition engines are biodiesel, vegetable oils, alcohols, dimethyl ether, dimethyl carbonate, natural gas, liquefied petroleum gas, methane, methane, propane, hydrogen and waste materials [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50]. Some of these alternative fuels can be used in pure form while others are used as dual fuels, fuel blends and emulsions.…”

Section: Introductionmentioning

confidence: 99%

“…Freitas et al [45] evaluated the performance and NO x , CO, and CO 2 content of a compression-ignition engine fueled with three blends of diesel, biodiesel, and ethanol: pure B7, B7E3 (B7 with 3% ethanol), and B7E10 (B7 with 10% ethanol). The experimental studies were performed for fixed engine speeds in the range of n = 1000-1750 rpm and for fixed loads in the range of 10-100% of maximum torque.…”

Section: Introductionmentioning

confidence: 99%

Experimental Studies of the Effect of Air Filter Pressure Drop on the Composition and Emission Changes of a Compression Ignition Internal Combustion Engine

Dziubak

Karczewski

2022

Energies

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This paper presents an experimental evaluation of the effect of air filter pressure drop on the composition of exhaust gases and the operating parameters of a modern internal combustion Diesel engine. A literature analysis of the methods of reducing the emission of toxic components of exhaust gases from SI engines was conducted. It has been shown that the air filter pressure drop, increasing during the engine operation, causes a significant decrease in power output and an increase in fuel consumption, as well as smoke emission of Diesel engines with the classical injection system with a piston (sectional) in-line injection pump. It has also been shown, on the basis of a few literature studies, that the increase in the resistance of air filter flow causes a change in the composition of car combustion engines, with the effect of the air filter pressure drop on turbocharged engines being insignificant. A programme, and conditions of tests, on a dynamometer of a modern six-cylinder engine with displacement Vss = 15.8 dm3 and power rating 226 kW were prepared, regarding the influence of air filter pressure drop on the composition of exhaust gases and the parameters of its operation. For each technical state of the air filter, in the range of rotational speed n = 1000–2100 rpm, measurements of exhaust gas composition and emission were carried out, as well as measurements and calculations of engine-operating parameters, namely that of effective power. An increase in the pressure drop in the inlet system of a modern Diesel truck engine has no significant effect on the emissions of CO, CO2, HC and NOx to the atmosphere, nor does it cause significant changes in the degree of smoke opacity of exhaust gases in relation to its permissible value. An increase in air filter pressure drop from value Δpf = 0.580 kPa to Δpf = 2.024 kPa (by 1.66 kPa) causes a decrease in the maximum filling factor value from ηu = 2.5 to ηu = 2.39, that is by 4.5%, and a decrease in maximum power by 8.8%.

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Emission and Performance Evaluation of a Diesel Engine Using Addition of Ethanol to Diesel/Biodiesel Fuel Blend

Cited by 14 publications

References 45 publications

Investigating the Effect of a Diesel–Refined Crude Palm Oil Methyl Ester–Hydrous Ethanol Blend on the Performance and Emissions of an Unmodified Direct Injection Diesel Engine

Investigating the Effect of a Diesel–Refined Crude Palm Oil Methyl Ester–Hydrous Ethanol Blend on the Performance and Emissions of an Unmodified Direct Injection Diesel Engine

Glycerol Monostearate and Distilled Cashew Nut Shell Liquid as Additives for Diesohol

Experimental Studies of the Effect of Air Filter Pressure Drop on the Composition and Emission Changes of a Compression Ignition Internal Combustion Engine

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