scholarly journals PERFORMANCE AND EMISSIONS OF A DIESEL ENGINE OPERATING WITH RENEWABLE BINARY BIODIESEL-N-BUTANOL BIOFUEL BLENDS

2020 ◽  
Vol 1 (14) ◽  
pp. 17-25
Author(s):  
Gvidonas LABECKAS ◽  
Stasys SLAVINSKAS ◽  
Tomas MACKEVIČIUS
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Fuel Consumption ◽  
Specific Fuel Consumption ◽  
Bench Test ◽  
Brake Specific Fuel Consumption ◽  
Fuel Blend ◽  
Performance And Emission ◽  
Rapeseed Methyl Ester ◽  
Smoke Opacity

This paper presents a comparative analysis of the diesel engine performance and emission characteristics, when operating on rapeseed methyl ester (B) and rapeseed methyl ester -butanol (Bu5, Bu10, Bu15) blends, at various loads and 2000 rpm engine speeds. The experimental tests were performed on a four-stroke, single-cylinder, air-cooled diesel engine FL511. The bench test results showed that the brake specific fuel consumption increased, when operating on biodiesel-butanol fuel blends compared to neat biodiesel. The maximum brake thermal efficiency sustained at the levels from 7.3% to 12.9% lower in comparison with neat biodiesel operating at low engine load. When the engine was running at maximum torque mode using biodiesel-butanol fuel blend Bu15 the total emissions of nitrogen oxides decreased. Thus, the greatest fossil fuel challenge related with the simultaneous reduction of both the NOx emissions and the smoke opacity (PM) could be reasonably solved by switching a diesel engine on totally renewable biodiesel-n-butanol biofuel blends.Keywords: diesel engine, rapeseed oil derived biodiesel, n-butanol, engine efficiency, brake specific fuel consumption, emissions, smoke opacity.

scholarly journals Effect of cetane improver addition into diesel fuel: Methanol mixtures on performance and emissions at different injection pressures

2017 ◽  
Vol 21 (1 Part B) ◽  
pp. 555-566 ◽  
Author(s):  
Feyyaz Candan ◽  
Murat Ciniviz ◽  
Ilker Ors
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Engine Performance ◽  
Injection Pressure ◽  
Specific Fuel Consumption ◽  
Exhaust Emission ◽  
Brake Specific Fuel Consumption ◽  
Consumption Values ◽  
Smoke Opacity

In this study, methanol in ratios of 5-10-15% were incorporated into diesel fuel with the aim of reducing harmful exhaust gasses of Diesel engine, di-tertbutyl peroxide as cetane improver in a ratio of 1% was added into mixture fuels in order to reduce negative effects of methanol on engine performance parameters, and isobutanol of a ratio of 1% was used as additive for preventing phase separation of all mixtures. As results of experiments conducted on a single cylinder and direct injection Diesel engine, methanol caused the increase of NOx emission while reducing CO, HC, CO2, and smoke opacity emissions. It also reduced torque and power values, and increased brake specific fuel consumption values. Cetane improver increased torque and power values slightly compared to methanol-mixed fuels, and reduced brake specific fuel consumption values. It also affected exhaust emission values positively, excluding smoke opacity. Increase of injector injection pressure affected performances of methanol-mixed fuels positively. It also increased injection pressure and NOx emissions, while reducing other exhaust emissions.

EFFECTS OF PALM OIL METHYL ESTER (POME) ON FUEL CONSUMPTION AND EXHAUST EMISSIONS OF DIESEL ENGINE OPERATING WITH BLENDED FUEL (FOSSIL FUEL + JATROPHA OIL METHYL ESTER (JOME))

2015 ◽  
Vol 76 (5) ◽  
Author(s):  
N. R. Abdullah ◽  
Z. Michael ◽  
A. R. Asiah ◽  
A. J. Helmisyah ◽  
S. Buang
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Fuel Consumption ◽  
Engine Speed ◽  
Fossil Fuel ◽  
Specific Fuel Consumption ◽  
Brake Specific Fuel Consumption ◽  
Jatropha Oil ◽  
Blended Fuel ◽  
Total Hydrocarbons

Biodiesel is used widely as an alternative fuel for diesel engine due to biodegradable, oxygenated, renewable and compatible with diesel engines . In fact, biodiesel emission has decreased the levels of potentially carcinogenic compounds. However, a certain biodiesel such as Jatropha Oil Methyl Ester (JOME) has resulted in the increase of specific fuel consumption and higher NOx emissions. Therefore, the objective of this study is to investigate the effects of Palm Oil Methyl Ester (POME) in the blended fuel (Fossil fuel + JOME) on the fuel consumption and exhaust emission. Experiments were carried out at a constant engine speed (2000 rpm) with variable of engine loads. Results show that the addition of POME leads to the significant reduction in brake specific fuel consumption (BSFC), Total hydrocarbons (THCs),  carbon monoxide (CO) and nitrogen dioxide (NOx) emissions. This study shows a huge difference for Total hydrocarbons emission of blends with 5% POME compared to blends with 10% and 15% of POME. Carbon monoxide emission for blends with 15% POME is the lowest at constant engine speed with various engine loads which in average is 53% lower than blends of 5% POME. This is because blends with higher percentage of POME has higher cetane number hence shortened the ignition delay resulted  in the lower possibility of formation of rich fuel zone and thus reduces CO emissions.  Moreover, the higher percentage of POME also resulted in lower NOx emission regardless of engine loads. The blends with 15% POME had the lowest NOx emission which is 25% less compared with the blends of 5% POME.  The study recommended that, additional POME to the blended fuel can be considered as a good initiative to improve blended fuel property for diesel engine due to its potential to improve engine emissions and reduce brake specific fuel consumption. In conclusion, the blends of POME into (Fossil fuel + JOME) improves engine emission without significantly increasing fuel consumption.

Performance and Emission Characteristics of a Mixed Biodiesel Fueled CI Engine

2015 ◽  
Vol 766-767 ◽  
pp. 557-561
Author(s):  
S. Arunprasad ◽  
Thangavel Balusamy ◽  
S. Sivalakshmi
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Thermal Efficiency ◽  
Emission Characteristics ◽  
Brake Specific Fuel Consumption ◽  
Brake Thermal Efficiency ◽  
Biodiesel Blends ◽  
Performance And Emission ◽  
Ci Engine ◽  
Smoke Opacity

In this present paper, an attempt has been made to examine the performance and emission characteristics of a single cylinder diesel engine fueled with blends of mixed biodiesel (Thevetia peruviana, Neem, Jatropha, Pongamia). Experiments were conducted with various blends of mixed biodiesel in CI engine for different loads. The results show that lower brake thermal efficiency and higher brake specific fuel consumption were obtained with mixed biodiesel blends when compared with diesel. Lower the value of CO and HC and higher the value of CO2 emissions were determined for mixed biodiesel blends compared to that of diesel. Also, higher in NOx and lower smoke opacity were found compared to diesel.

scholarly journals Effects of Different Diesel-Ethanol Dual Fuel Ratio on Performance and Emission Characteristics of Diesel Engine

Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1135
Author(s):  
Zhiqing Zhang ◽  
Jiangtao Li ◽  
Jie Tian ◽  
Guangling Xie ◽  
Dongli Tan ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Combustion Process ◽  
Specific Fuel Consumption ◽  
Brake Specific Fuel Consumption ◽  
Cylinder Pressure ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Blended Fuel ◽  
Engine Power

In this paper, a four-stroke engine diesel was employed to investigate the effects of different fuel mixture ratios of diesel and ethanol on engine performance and emission characteristics in terms of cylinder temperature, heat release rate, brake power, brake thermal efficiency, brake specific fuel consumption, and cylinder pressure. The corresponding simulation model of diesel engine was developed by AVL-Fire coupled CHEMKIN code, and an improved chemical kinetics mechanism containing 34 reactions and 19 species was employed to simulate the fuel spray process and combustion process. The simulation model was validated by experimental results under 100% and 50% load conditions and used to simulate the combustion process of diesel engine fueled with pure diesel and diesel–ethanol blends with 10%, 20%, and 30% ethanol by volume, respectively. The results showed that the increase of ethanol content in the blended fuel had a certain negative impact on the performance characteristic of diesel engine and significantly improved the emission characteristic of the engine. With the ethanol proportion in the blended fuel increased to 10%, 20%, and 30%, the brake thermal efficiency of the engine increased by 2.24%, 4.33%, and 6.37% respectively. However, the brake-specific fuel consumption increased by 1.56%, 3.49%, and 5.74% and the power decreased by 1.58%, 3.46%, and 5.54% respectively. In addition, with the ethanol proportion in the blended fuel increased to 10%, 20%, and 30%, the carbon monoxide emission decreased by 34.69%, 47.60%, and 56.58%, and the soot emission decreased by 7.83%, 15.24%, and 22.52% respectively. Finally, based on the combining fuzzy and grey correlation theory, nitrogen oxide emission has the highest correlation with engine power and brake-specific fuel consumption. The values reach 0.9103 and 0.8945 respectively. It shows that nitrogen oxide emission and cylinder pressure have a significant relationship on engine power and brake-specific fuel consumption.

Characteristics of Water-in-Diesel Emulsions in a Single Cylinder Compression Ignition Engine

2014 ◽  
Author(s):  
Teja Gonguntla ◽  
Robert Raine ◽  
Leigh Ramsey ◽  
Thomas Houlihan
Keyword(s):  
Fuel Consumption ◽  
Direct Injection ◽  
Engine Performance ◽  
Operating Conditions ◽  
Specific Fuel Consumption ◽  
Brake Specific Fuel Consumption ◽  
Compression Ignition Engine ◽  
Oil Emulsion ◽  
Single Cylinder ◽  
Performance And Emission

The objective of this project was to develop both engine performance and emission profiles for two test fuels — a 6% water-in-diesel oil emulsion (DOE-6) fuel and a neat diesel (D100) fuel. The testing was performed on a single cylinder, direct-injection, water-cooled diesel engine coupled to an eddy current dynamometer. Output parameters of the engine were used to calculate Brake Specific Fuel Consumption (BSFC) and Engine Efficiency (η) for each test fuel. DOE-6 fuels generated a 24% reduction in NOX and a 42% reduction in Carbon Monoxide emissions over the tested operating conditions. DOE-6 fuels presented higher ignition delays — between 1°-4°, yielded 1%–12% lower peak cylinder pressures and produced up to 5.5% lower exhaust temperatures. Brake Specific Fuel consumption increased by 6.6% for the DOE-6 fuels as compared to the D100 fuels. This project is the first research done by a New Zealand academic institution on water-in-diesel emulsion fuels.

The Comparative Trail Research on the Performance of a Diesel Engine Fuelled with Diesel Fuel and Biodiesel/Diesel Blended Fuel

2011 ◽  
Vol 142 ◽  
pp. 103-106
Author(s):  
Wen Ming Cheng ◽  
Hui Xie ◽  
Gang Li
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Thermal Efficiency ◽  
Specific Fuel Consumption ◽  
Brake Specific Fuel Consumption ◽  
Brake Thermal Efficiency ◽  
Series Of Experiments ◽  
Blended Fuel ◽  
Load Conditions

This paper discusses the brake specific fuel consumption and brake thermal efficiency of a diesel engine using cottonseed biodiesel blended with diesel fuel. A series of experiments were conducted for the various blends under varying load conditions at a speed of 1500 rpm and 2500 rpm and the results were compared with the neat diesel. From the results, it is found that the brake specific fuel consumption of cottonseed biodiesel is slightly higher than that of diesel fuel at different engine loads and speeds, with this increase being higher the higher the percentage of the biodiesel in the blend. And the brake thermal efficiency of cottonseed biodiesel is nearly similar to that of diesel fuel at different engine loads and speeds. From the investigation, it is concluded that cottonseed biodiesl can be directly used in diesel engines without any modifications, at least in small blending ratios.

scholarly journals Biodiesel Extraction from Chicken Fat and Its Effect on the Performance and Emission Characteristics of the Diesel Engine

2021 ◽  
Vol 20 (4) ◽  
Author(s):  
V. Hariram ◽  
J. Godwin John ◽  
Subramanyeswara Rao ◽  
S. K. Baji Babavali ◽  
S. Muni Lokesh ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Experimental Investigations ◽  
Emission Characteristics ◽  
Brake Specific Fuel Consumption ◽  
Physiochemical Properties ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Chicken Fat ◽  
Fuel Blends

This study focuses on the conversion of chicken fat into chicken fat methyl ester (CFME) and its use in the diesel engine. Baseline fuel i.e., diesel and chicken fat biodiesel are the fuels tested to study their effect on the performance and emission characteristics of diesel engines. To enhance the performance and emission characteristics, ethanol up to 20% is added as an additive to the chicken fat biodiesel. The physiochemical properties revealed that the fuel blends properties are closer to the diesel fuel. The experimental investigations revealed that additive blended biodiesel enhanced the performance by reducing the brake-specific fuel consumption and increasing the brake thermal efficiency. Moreover, the emissions are considerably reduced by the additive blended chicken fat biodiesel. Therefore, chicken fat biodiesel can be considered as a substitute fuel to be used in the diesel engine without any modifications.

scholarly journals An Assessment on Performance Characteristics of Diesel Engine Using Lemongrass-Diesel Oil Fuel Blends

2021 ◽  
Author(s):  
Naveen Rana ◽  
Harikrishna Nagwan ◽  
Kannan Manickam
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Thermal Efficiency ◽  
Specific Fuel Consumption ◽  
Performance Characteristics ◽  
Emission Characteristics ◽  
Brake Specific Fuel Consumption ◽  
Brake Thermal Efficiency ◽  
Fuel Blends

Abstract Indeed, the development of alternative fuels for use in internal combustion engines has become an essential requirement to meet the energy demand and to deal with the different problems related to fuel. The research in this domain leads to the identification of adverse fuel properties and for their solution standard limits are being defined. This paper outlines an investigation of performance and combustion characteristics of a 4-stroke diesel engine using different cymbopogon (lemongrass) - diesel fuel blends. 10% to 40% cymbopogon is mixed with diesel fuel and tested for performance characteristics like brake specific fuel consumption and brake thermal efficiency. To obtain emission characteristics smoke density in the terms of HSU has been measured. In result, it has observed that there is an increase of 5% in brake thermal efficiency and 16.33% decrease in brake specific fuel consumption. Regarding emission characteristics, a 12.9% decrease in smoke emission has been found.

scholarly journals  Effect of rapeseed methyl ester on fuel consumption and engine power

2012 ◽  
Vol 58 (No. 2) ◽  
pp. 37-45
Author(s):  
M. Pexa ◽  
K. Kubín
Keyword(s):  
Methyl Ester ◽  
Fuel Consumption ◽  
Engine Speed ◽  
Calorific Value ◽  
Diesel Oil ◽  
Specific Fuel Consumption ◽  
Flow Meter ◽  
Rapeseed Methyl Ester ◽  
Tractor Engine ◽  
Engine Power

This paper describes the effect of a mixture of rapeseed methyl ester and diesel oil on fuel consumption and power parameters of tractor engine. The hydraulic dynamometer was used to load the engine of Zetor Forterra 8641 tractor over rear power take-off. The measured tractor is almost new with less than 100 h worked. The measurements were realized for several ratios of diesel oil and rapeseed methyl ester (from pure diesel to pure rapeseed methyl ester). The engine was loaded by the dynamometer in several working points which were predefined by engine speed and its torque. The fuel consumption was measured by the flow meter in each of these points. The reduction of engine’s power parameters and the increase of specific fuel consumption are expected due to the nature of rapeseed methyl ester such as e.g. lower calorific value.  

scholarly journals Use of Gasoline, LPG and LPG-HHO Blend in SI Engine: A Comparative Performance for Emission Control and Sustainable Environment

Processes ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 74 ◽  
Author(s):  
Muhammad Usman ◽  
Muhammad Farooq ◽  
Muhammad Naqvi ◽  
Muhammad Wajid Saleem ◽  
Jafar Hussain ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Alternative Fuels ◽  
Environmental Pollutants ◽  
Spark Ignition Engine ◽  
Specific Fuel Consumption ◽  
Brake Specific Fuel Consumption ◽  
Liquefied Petroleum Gas ◽  
Comparative Performance ◽  
Performance And Emission ◽  
Brake Power

The rising global warming concerns and explosive degradation of the environment requires the mainstream utilization of alternative fuels, such as hydroxy gas (HHO) which presents itself as a viable substitute for extracting the benefits of hydrogen. Therefore, an experimental study of the performance and emission characteristics of alternative fuels in contrast to conventional gasoline was undertaken. For experimentation, a spark ignition engine was run on a multitude of fuels comprising of gasoline, Liquefied petroleum gas (LPG) and hybrid blend of HHO with LPG. The engine was operated at 60% open throttle with engine speed ranging from 1600 rpm to 3400 rpm. Simultaneously, the corresponding performance parameters including brake specific fuel consumption, brake power and brake thermal efficiency were investigated. Emission levels of CO, CO2, HC and NOx were quantified in the specified speed range. To check the suitability of the acquired experimental data, it was subjected to a Weibull distribution fit. Enhanced performance efficiency and reduced emissions were observed with the combustion of the hybrid mixture of LPG with HHO in comparison to LPG: on average, brake power increased by 7% while the brake specific fuel consumption reduced by 15%. On the other hand, emissions relative to LPG decreased by 21%, 9% and 21.8% in cases of CO, CO2, and unburned hydrocarbons respectively. Incorporating alternative fuels would not only imply reduced dependency on conventional fuels but would also contribute to their sustainability for future generations. Simultaneously, the decrease in harmful environmental pollutants would help to mitigate and combat the threats of climate change.

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