Phenomena of brake specific fuel consumption and volumetric efficiency in CI engine by modified intake runner length

Biodiesel is an alternative fuels for diesel engine with the blending process by chemically combination of vegetable or animal oil and diesel fuels. It is proved that the biodiesel can be used without any modification on the compression ignition (CI) engine. In this study, the cooking oil of namely carotene is used to produce the biodiesel blend fuels in various percentages. The biodiesel blend and diesel fuel are evaluated to analyze the engine performances in 4 cylinder inline CI engine. The characteristics of engine performances namely brake power output and brake specific fuel consumption are measured with various loads applied. The fuel properties of biodiesel blend are investigated namely density, dynamics viscosity and kinetic viscosity. The experimental results show that the performance of biodiesel B10 is better than it counterpart namely diesel in terms of brake power output and brake specific fuel consumption (BSFC).

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

Volume 6A: Energy ◽

10.1115/imece2014-38746 ◽

2014 ◽

Cited By ~ 2

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.

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An Improvement of Part Load Performance of Diesel Engines Operating at Constant Speed Conditions

Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy ◽

10.1243/pime_proc_1994_208_005_02 ◽

1994 ◽

Vol 208 (1) ◽

pp. 21-25 ◽

Cited By ~ 4

Author(s):

A A Abdel-Rahman ◽

M K Ibrahim ◽

A A Said

Keyword(s):

Fuel Consumption ◽

Diesel Engines ◽

Petroleum Refining ◽

Specific Fuel Consumption ◽

Constant Speed ◽

Maximum Pressure ◽

Brake Specific Fuel Consumption ◽

Part Load ◽

Generating Sets ◽

In Series

This paper discusses the possibility of improving the part load performance of diesel electric turbocharged engines operating at constant speed conditions. A sequential turbocharged system is proposed, where the compressors are connected In series. The study focused on two turbocharged diesel–electric generating sets existing at Ameria Petroleum Refining Company in Alexandria, Egypt. The results of the prediction showed that, at part load, both the maximum pressure and temperature were increased, and the brake specific fuel consumption was reduced considerably (by about 10 per cent).

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EXPERIMENTAL ANALYSIS OF THE COMBUSTION CHAMBER COATED WITH Mo AND Al2O3-TiO2 IN A DIESEL ENGINE

Materiali in tehnologije ◽

10.17222/mit.2020.227 ◽

2021 ◽

Vol 55 (4) ◽

Author(s):

Murugan Kuppusamy ◽

Thirumalai Ramanathan ◽

Udhayakumar Krishnavel ◽

Seenivasan Murugesan

Keyword(s):

Combustion Chamber ◽

Fuel Consumption ◽

Thermal Efficiency ◽

Performance Test ◽

Ceramic Powder ◽

Specific Fuel Consumption ◽

Emission Characteristic ◽

Powder Materials ◽

Brake Specific Fuel Consumption ◽

Brake Thermal Efficiency

The effect of thermal-barrier coatings (TBCs) reduces fuel consumption, effectively improving the engine efficiency. This research focused on a TBC with a thickness of 300 µm insulating the combustion chamber of a direct ignition (DI) engine. The piston crown, inlet and exhaust-valve head were coated using air-plasma-spray coating. Ceramic powder materials such as molybdenum (Mo) and aluminum oxide titanium dioxide (Al2O3-TiO2) were used. A performance test of the engine with the coated combustion chamber was carried out to investigate the brake power, brake thermal efficiency, volumetric efficiency, brake specific fuel consumption and air-fuel ratio. Also, an emission-characteristic test was carried out to investigate the emissions of unburned hydrocarbon (HC), carbon monoxide (CO), nitrogen oxides (NO, NO2, NO3) and smoke opacity (SO). The results reveal that the brake thermal efficiency and brake specific fuel consumption show significant increases because of these coating materials. The effect of the Al2O3-TiO2 coating significantly reduces the HC and CO engine emissions.

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The Application of Artificial Neural Network in Prediction of the Performance of Spark Ignition Engine Running on Ethanol-Petrol Blends

International Journal of Engineering and Technologies ◽

10.18052/www.scipress.com/ijet.12.15 ◽

2017 ◽

Vol 12 ◽

pp. 15-31 ◽

Cited By ~ 2

Author(s):

Olisaemeka C. Nwufo ◽

Modestus Okwu ◽

Chidiebere F. Nwaiwu ◽

Johnson O. Igbokwe ◽

O. Martin I. Nwafor ◽

...

Keyword(s):

Neural Network ◽

Artificial Neural Network ◽

Fuel Consumption ◽

Spark Ignition ◽

Combustion Efficiency ◽

Spark Ignition Engine ◽

Specific Fuel Consumption ◽

Maximum Pressure ◽

Brake Specific Fuel Consumption ◽

Artificial Neural

The performance analysis of a single cylinder spark ignition engine fuelled with ethanol – petrol blends were carried out successfully at constant load conditions. E0 (Petrol), E10 (10% Ethanol, 90% Petrol), E20 (20% Ethanol, 80% Petrol) and E30 (30% Ethanol, 70% Petrol) were used as fuel. The Engine speed, mass flow rate, combustion efficiency, maximum pressure developed, brake specific fuel consumption and Exhaust gas temperature values were measured during the experiment. Using the experimental data, a Levenberg Marquardt Artificial Neural Network algorithm and Logistic sigmoid activation transfer function with a 4–10–2 model was developed to predict the brake specific fuel consumption, maximum pressure and combustion efficiency of G200 IMEX spark ignition engine using the recorded engine speed, mass flow rate, biofuels ratio and exhaust gas temperature as input variables. The performance of the Artificial Neural Network was validated by comparing the predicted data with the experimental results. The results showed that the training algorithm of Levenberg Marquardt was sufficient enough in predicting the brake specific fuel consumption, combustion pressure and combustion efficiency of the test engine. Correlation coefficient values of 0.974, 0.996 and 0.995 were obtained for brake specific fuel consumption, combustion efficiency and pressure respectively. These correlation coefficient obtained for the output parameters are very close to one (1) showing good correlation between the Artificial Neural Network predicted results and the experimental data while the Mean Square Errors were found to be very low (0.00018825 @ epoch 10 for brake specific fuel consumption, 1.0023 @ epoch 3 for combustion efficiency and 0.0013284@ epoch 5 for in-cylinder pressure). Therefore, Artificial Neural Network toolbox called up from MATLAB proved to be a useful tool for simulation of engine parameters. Artificial Neural Network model provided accurate analysis of these complex problems and has been found to be very useful for predicting the performance of the spark ignition engine. Thus, this has proved that Artificial Neural Network model could be used for predicting performance values in internal combustion engines, in this way it would be possible to conduct time and cost efficient studies instead of long experimental ones.

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Performance of a Compression-Ignition Engine Fueled with Diesel/Biodiesel Blends

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.730.283 ◽

2015 ◽

Vol 730 ◽

pp. 283-286

Author(s):

Rong Fu Zhu ◽

Yun Long Wang ◽

Hui Wang ◽

Yuan Tao Sun

Keyword(s):

Fuel Consumption ◽

Specific Fuel Consumption ◽

Experimental Results ◽

Nox Emission ◽

Brake Specific Fuel Consumption ◽

Compression Ignition ◽

Compression Ignition Engine ◽

Biodiesel Blends ◽

Brake Power ◽

Fuel Delivery

The performance of engine fueled with diesel/biodiesel blends was tested. It was indicated from the experimental results that the brake power, torque out and brake specific fuel consumption of engine fueled with diesel/biodiesel caused slight variations, while NOx emission increased significantly compared with engine fueled with diesel. In order to reduce NOx emission of engine fueled with pure biodiesel, retarding fuel delivery advance angle was used, and the NOx emission tests revealed that the NOx emission decreased significantly at different engine speeds.

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

Thermal Science ◽

10.2298/tsci160430265c ◽

2017 ◽

Vol 21 (1 Part B) ◽

pp. 555-566 ◽

Cited By ~ 7

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.

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

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.142.103 ◽

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.

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Hydrogen as an Alternative: Life Cycle Cost Analysis between Hydrogen Internal Combustion Engine (Al+Hci) and Gasoline Engine Based on Brake Specific Fuel Consumption

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.315.423 ◽

2013 ◽

Vol 315 ◽

pp. 423-427

Author(s):

Halim Razali ◽

Kamaruzzaman Sopian ◽

Ali Sohif Mat

Keyword(s):

Life Cycle ◽

Interest Rate ◽

Internal Combustion Engine ◽

Fuel Consumption ◽

Combustion Engine ◽

Internal Combustion ◽

Specific Fuel Consumption ◽

Brake Specific Fuel Consumption ◽

The Interest Rate ◽

The Cost

Estimation of the life cycle cost (LCC) for a hydrogen internal combustion engine (H2ICE) that uses hydrogen as an alternative fuel by forecasting a financial investment plan for a period of five years (n = 5). This is influenced by the interest rate of 10% (i = 10). The effect of Annual Operating Cost and salvage value in the LCC for H2ICE would give impact on the cost of investment and economic growth in the long term. The result shows the brake specific fuel consumption to achieve 14% savings for grams per kilowatt hour for the engine (G + H2) compared to the engine (G). The operation of H2ICE in the first year would be increased by 22%, the reason is due to the cost of equipment, maintenance and purchase of new components. However, the percentage of operation cost for the following five to ten year of Present worth (PW) is reduced to 0.36% in the fourth year (n = 4) within the interest rate of 10%. The return of initial investment in the capital-first cost (FC) is to occur at the beginning of the fifth year (n = 5) of H2ICE operations. The cost of savings for the next five years would become more profitable reaching 37% reduction in cost compared to conventional fuel consumption

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Evaluating brake specific fuel consumption and gas emissions from palm biodiesel fuel used in diesel generator

Science and Technology Development Journal ◽

10.32508/stdj.v18i1.1130 ◽

2015 ◽

Vol 18 (2) ◽

pp. 24-36

Author(s):

Phuong Nu Thanh Ton ◽

Giang Hoang Le ◽

Hien Thi To ◽

Takenaka Norimichi

Keyword(s):

Fuel Consumption ◽

Emission Factors ◽

High Load ◽

Specific Fuel Consumption ◽

Biodiesel Fuel ◽

Brake Specific Fuel Consumption ◽

Diesel Generator ◽

Mixing Rate ◽

Fuel Blends ◽

Loading Mode

This study evaluated brake specific fuel consumption and regulated emissions from palm biodiesel fuel (palm BDF) used on diesel generators. The tests were performed at an idle and high load with different mixing rate blends between diesel fuel and palm BDF (0 %, 5 %, 10 %, 15 %, 20 %, 50 %, 100 % which was called B0, B5, B10, B15, B20, B50 and B100) respectively. The results showed at each loading mode, brake specific fuel consumption increased when the volume of palm BDF rose in the blends. At the idle mode, brake specific fuel consumption increased 1.32 %, 1.8 %, 2.8 %, 3.74 %, 5.61 %, 6.54 % for B5, B10, B15, B20, B50, B100, compared with B0. Similarly at the high load mode, brake specific fuel consumption improved 1.51 %, 1.86 %, 2.18 %, 4.78 %, 5.36 %, 6.76 % for B5, B10, B15, B20, B50, B100, compared with B0. In both two load modes, when the volume of palm BDF in the fuel blends grew gradually, the concentration of CO, SO2 and CxHy emission reduced while the concentration of NO and NO2, CO2 went up. Emission factors of CO, SO2 and CO2 at high load are higher than those at an idle load, regardless the ratio of palm BDF to diesel fue. Conversely, emission factors of NO, NO2 at high load are higher.

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