Improvement Of Engine Performance Using Diethylene Glycol Dimethyl Ether (DGM) As Additive

2012 ◽  
Author(s):  
Md. Nurun Nabi ◽  
Md. Wahid Chowdhury
Keyword(s):  
Diesel Engine ◽  
Oxygen Content ◽  
Diesel Fuel ◽  
Direct Injection ◽  
Research Work ◽  
Specific Energy Consumption ◽  
Load Condition ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Diesel Emissions

This research work investigates diesel combustion and exhaust emissions with additives addition to conventional diesel fuel in a four-stroke naturally aspirated direct injection (DI) diesel engine. The additives include DGM, and liquid cerium. The results show that with the addition of DGM to diesel fuel, brake specific energy consumption (BSEC) and all diesel emissions are significantly reduced. The volumetric blending ratios of additives to diesel fuel are 0, 25, 50, 75 and 100%. All emissions including smoke emissions decrease with the increase in oxygen content in the fuel and it is noted that smoke emission completely disappeared at an oxygen content of 36 wt–%. The reason for improvement in BSEC with the addition of additives to base diesel fuel is the improvement of degree of constant volume combustion, and the reduction of the cooling loss. Engine noise and odor concentrations are remarkably reduced with diesel-additive blends. Significant improvement in BSEC and exhaust emissions is not only found at medium load condition but also at high load condition. Key words: Diesel engine, DGM, emissions, BSEC, and cooling loss

scholarly journals THE EFFECT OF DIESEL-BIODIESEL BLENDS ON THE PERFORMANCE AND EXHAUST EMISSIONS OF A DIRECT INJECTION OFF-ROAD DIESEL ENGINE

Transport ◽  
2014 ◽  
Vol 29 (4) ◽  
pp. 440-448 ◽  
Author(s):  
Tomas Mickevičius ◽  
Stasys Slavinskas ◽  
Slawomir Wierzbicki ◽  
Kamil Duda
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Direct Injection ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Bench Test ◽  
Maximum Pressure ◽  
Cylinder Pressure ◽  
Biodiesel Blends ◽  
Performance And Emission

This paper presents a comparative analysis of the diesel engine performance and emission characteristics, when operating on diesel fuel and various diesel-biodiesel (B10, B20, B40, B60) blends, at various loads and engine speeds. The experimental tests were performed on a four-stroke, four-cylinder, direct injection, naturally aspirated, 60 kW diesel engine D-243. The in-cylinder pressure data was analysed to determine the ignition delay, the Heat Release Rate (HRR), maximum in-cylinder pressure and maximum pressure gradients. The influence of diesel-biodiesel blends on the Brake Specific Fuel Consumption (bsfc) and exhaust emissions was also investigated. The bench test results showed that when the engine running on blends B60 at full engine load and rated speed, the autoignition delay was 13.5% longer, in comparison with mineral diesel. Maximum cylinder pressure decreased about 1–2% when the amount of Rapeseed Methyl Ester (RME) expanded in the diesel fuel when operating at full load and 1400 min–1 speed. At rated mode, the minimum bsfc increased, when operating on biofuel blends compared to mineral diesel. The maximum brake thermal efficiency sustained at the levels from 0.3% to 6.5% lower in comparison with mineral diesel operating at full (100%) load. When the engine was running at maximum torque mode using diesel – RME fuel blends B10, B20, B40 and B60 the total emissions of nitrogen oxides decreased. At full and moderate load, the emission of carbon monoxide significantly raised as the amount of RME in fuel increased.

Biofuel (Cooking Oil) Blends Contribution in DI Diesel Engine – Performance & Emission Study

2014 ◽  
Vol 984-985 ◽  
pp. 839-844
Author(s):  
Natesan Kanthavelkumaran ◽  
P. Seenikannan
Keyword(s):  
Diesel Engine ◽  
Rice Bran ◽  
Diesel Fuel ◽  
Rice Bran Oil ◽  
Direct Injection ◽  
Research Work ◽  
Engine Performance ◽  
Performance And Emission ◽  
Emission Study ◽  
Ci Engines

In present scenario researchers focusing the alternate sources of petroleum products. Based on this, current research work focused the emission study of its characteristics and potential as a substitute for Diesel fuel in CI engines. Current research biodiesel is produced by base catalyzed transesterification of rice bran oil is known as Rice Bran Oil Methyl Ester (Biofuel). In this research various proportions of Biofuel and Diesel are prepared on volume basis. It is used as fuels in a four stroke single cylinder direct injection Diesel engine to study the performance and emission characteristics of these fuels. Varieties of results obtained, that shows around 50% reduction in smoke, 33% reduction in HC and 38% reduction in CO emissions. In result discussion a different blends of the brake power and BTE are reduced nearly 2 to 3% and 3 to 4% respectively around 5% increase in the SFC. Therefore it is accomplished from the this experimental work that the blends of Biofuel and Diesel fuel can successfully be used in Diesel engines as an alternative fuel without any modification in the engine. It is also environment friendly blended fuel by the various emission standards.

The Application of Non-Esterified Biodiesel in a Diesel Engine

2011 ◽  
Vol 110-116 ◽  
pp. 38-42
Author(s):  
Youngtaig Oh ◽  
Seung Hun Choi ◽  
Azjargal Janchiv
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Alternative Energy ◽  
Direct Injection ◽  
Specific Energy Consumption ◽  
Energy Resource ◽  
Engine Performance ◽  
Smoke Emission ◽  
Exhaust Gas Emission ◽  
Water Dipole

Nowadays, various environmental regulations are being strengthened because of air pollution caused by exhaust gas emission of the automobiles. Biodiesel has been recognized as an alternative energy resource since it can be used without the modification of existing diesel engines and contains oxygen in itself, so the engine performance didn’t have large differences in comparison with the diesel fuel but remarkably reduces smoke emissions. The main objective of this study is to investigate usability of non-esterified biodiesel as an alternative fuel in a common rail direct injection diesel engine. The non-esterified biodiesel has not generated glycerin in esterificaion process and reduced the 20 percent of cost because it has not used methanol in the production process. Experiments were conducted by using the 5 percentage of biodiesel and 4 percentage of biodiesel with 1 percentage of WDP (water dipole power) in diesel fuel. Based on the experimental analysis the smoke emission of biodiesel was reduced significantly, but power, torque, and brake specific energy consumption was similar in comparison with commercial diesel fuel.

A Study on Adaptability of the Engine Control Module of an Existing Heavy Duty Diesel Engine to Optimize the Engine Performance With F-T Diesel Fuel

2007 ◽  
Author(s):  
Praveen Kandulapati ◽  
Chuen-Sen Lin ◽  
Dennis Witmer ◽  
Thomas Johnson ◽  
Jack Schmid ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Load Condition ◽  
Engine Performance ◽  
Injection Timing ◽  
Heavy Duty ◽  
Synthetic Fuels ◽  
Control Module ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

Synthetic fuels produced from non-petroleum based feedstocks can effectively replace the depleting petroleum based conventional fuels while significantly reducing the emissions. The zero sulfur content and the near zero percentage of aromatics in the synthetic fuels make them promising clean fuels to meet the upcoming emissions regulations. However due to their significantly different properties when compared to the conventional fuels; the existing engines must be tested extensively to study their performance with the new fuels. This paper reports a detailed in-cylinder pressure measurement based study made on adaptability of the engine control module (ECM) of a modern heavy duty diesel engine to optimize the engine performance with the F-T diesel fuel. During this study, the F-T and Conventional diesel fuels were tested at different loads and various injection timing changes made with respect to the manufacturer setting. Results from these tests showed that the ECM used significantly different injection timings for the two fuels in the process of optimizing the engine performance. For the same power output the ECM used a 2° advance in the injection timing with respect to the manufacturer setting at the full load and 1° retard at the no load condition. While the injection timings used by the ECM were same for both the fuels at the 50% load condition. However, a necessity for further changes in the control strategies used by the ECM were observed to get the expected advantages with the F-T fuels.

Utilization of Waste Hydraulic Oil as Fuel in Diesel Engine

2012 ◽  
Vol 518-523 ◽  
pp. 3263-3266
Author(s):  
Jazair Yahya Wira ◽  
Tan Wee Choon ◽  
Samion Syahrullail ◽  
Noge Hirofumi ◽  
Mazlan Said ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Alternative Fuels ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Hydraulic Oil ◽  
Span 80 ◽  
Co Emission ◽  
Conventional Diesel Fuel ◽  
Test Fuel

Production of alternative diesel fuel has been increasing drastically in many Asian countries. Since the reduction of petroleum production by Organization of Petroleum Exporting Countries (OPEC), the research on alternative fuel for diesel engine has gain interest. The target of this project is to substitute some percentage usage of conventional diesel fuel with waste substance without compromising on engine performance and exhaust emissions. This study has produced two type of alternative fuels. A test fuel consisting 30% of water into diesel fuel with the existence of additive or emulsifier (span 80) is called as DW Emul. Another test fuel which is named as DHW Emul produced by blending 30% of water into a mixture consisting of 20% of waste hydraulic oil and 80% of diesel fuel with the existence of span 80. The engine performance and exhaust emissions of DW Emul and DHW Emul are measured and has been compared with the conventional diesel fuel. A 600cc single cylinder direct injection diesel engine was used. The experiment was conducted at 1500 rpm with variable engine loads. Results show that DHW Emul and DW Emul has higher brake specific fuel consumption (BSFC). However, by considering the total use of diesel fuel contained in DW Emul, the quantity was lower at all loads. The same goes for DHW Emul at low load but deteriorate at high load which show slightly higher compared with of using 100% conventional diesel fuel. DHW Emul has suppressed CO emission that is usually high of using emulsion fuel to the level similar to conventional diesel fuel. NOx and Smoke emissions for DHW Emul are lower than conventional diesel. The use of DHW Emul can give significant reduction of NOx and Smoke emissions without deterioration of CO emission.

Simultaneous Reduction of Oxides of Nitrogen and Smoke Emissions by Using EGR Combined With Particulate Trap in a DI Diesel Engine

2006 ◽  
Author(s):  
R. Anand ◽  
N. V. Mahalakshmi
Keyword(s):  
Diesel Engine ◽  
Low Cost ◽  
Direct Injection ◽  
Substantial Reduction ◽  
Load Condition ◽  
Engine Performance ◽  
Trapping Efficiency ◽  
Clay Material ◽  
Oxides Of Nitrogen ◽  
Di Diesel Engine

Exhaust gas recirculation (EGR) combined with particulate trap technology has proven to reduce nitrogen oxides (NOx) and smoke emissions simultaneously at relatively low cost compared to other reduction strategies. An experimental study was conducted on a single cylinder, direct injection (DI) diesel engine to study the effect of EGR on engine performance and emissions under constant speed of 1500 rpm at various loads. In the present work hot and cool EGR were used to control the formation of NOx in a D.I diesel engine. The findings of both hot and cool EGR are discussed and compared at full load condition corresponding to the maximum allowable EGR proportion of 15%. It is found that cool EGR has a substantial reduction in NOx and smoke emissions compared to hot EGR. Based on the above result it is found that suitable particulate trap which is cost effective and high trapping efficiency is needed before the EGR cooler to reduce the smoke emissions to meet the emission standards. In the present study a substrate made of clay material was used in the particulate trap. They were made into spheres and coated with copper and zinc oxide catalyst material. The results have shown that EGR combined with particulate trap simultaneously reduces the NOx and smoke emissions by 63% and 42% respectively where as it increases brake specific fuel consumption by 10% compared to baseline mode.

scholarly journals ANN Modeling For Forecasting of VCR Engine Performance And Emission Parameters Fuelled With Green Diesel Extracted From Waste Biomass Resources

2021 ◽  
Author(s):  
Rajayokkiam Manimaran ◽  
Thangavel Mohanraj ◽  
Moorthy Venkatesan
Keyword(s):  
Diesel Fuel ◽  
Research Work ◽  
Load Condition ◽  
Engine Performance ◽  
Experimental Tests ◽  
Waste Biomass ◽  
Ann Model ◽  
Green Diesel ◽  
Performance And Emission ◽  
Smoke Opacity

Abstract In this research work, the experimental tests were conducted on a single-cylinder, constant speed, variable compression ratio (VCR) engine fuelled with green diesel extracted from waste trichosanthes cucumerina seeds. The engine test blends are prepared with different trichosanthes cucumerina biodiesel (TCB) proportions of 30%, 50% and 70% in diesel fuel, and their thermo-physical properties were assessed as per the ASTM standards. At full load condition, the TCB30 blend operated at the CR 18:1 gives better engine performance and reduced emission levels of HC by 13.51%, CO by 10.82% and smoke opacity by 16.87%, equated with neat diesel fuel. With the support of experimental results, the performance (BTE, BSFC and EGT) and emission parameters (HC, CO, NOx, smoke opacity and CO2) are predicted using multiple regression artificial neural network (ANN) model. This trained ANN model results in an average correlation coefficient (R2) value is 0.9967, which is closer to 1. It indicates that the proposed ANN model can generate the exact correlation between input factors and output responses.

scholarly journals THE EFFECT OF FUEL ADDITIVE SO‐2E ON DIESEL ENGINE PERFORMANCE WHEN OPERATING ON DIESEL FUEL AND SHALE OIL

Transport ◽  
2006 ◽  
Vol 21 (2) ◽  
pp. 71-79 ◽  
Author(s):  
Gvidonas Labeckas ◽  
Arvydas Pauliukas ◽  
Stasys Slavinskas
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Energy Content ◽  
Direct Injection ◽  
Engine Performance ◽  
Fuel Additive ◽  
Exhaust Gas ◽  
Shale Oil ◽  
Speed Range ◽  
Wide Speed Range

The purpose of this research is to perform comparative analysis of the effect of fuel additive SO‐2E on the economical and ecological parameters of a direct‐injection Diesel engine, operating on Diesel fuel and shale oil alternately. It was proved that multifunctional fuel additive SO‐2E applied in proportion 0,2 vol % is more effective for improving combustion of shale oil than Diesel fuel. At light operation range the treated shale oil savings based upon fuel energy content throughout wide speed range 1400–2000 min−1 reduce from 14,6–12,3MJ/kWh to 11,6–11,8 MJ/kWh or by 20,5–4,1 %. Maximum NO emission for treated Diesel fuel was reduced by 7,8–11,8 %, whereas NO2 simultaneously increased by 3,8–7,4 %. In the case of treated shale oil both harmful pollutants were reduced by 22,9–28,6 % and by 41,6–13,4 %, respectively. The exhaust gas opacity and CO emissions at the rated performance regime for both fuels were obtained a bit higher, whereas HC emission for treated shale oil increases 1,9 times and for Diesel fuel remains on the same level.

scholarly journals Performance of Diesel Engine using Bio-Fuel From Sesame Oil

2019 ◽  
Vol 8 (10) ◽  
pp. 1554-1558 ◽  
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fossil Fuels ◽  
Industrial Revolution ◽  
Engine Performance ◽  
High Standard ◽  
Alternative Fuel ◽  
Exhaust Emissions ◽  
High Viscosity ◽  
Sesame Oil

Energy has become a crucial factor for humanity to continue the economic growth and maintain high standard of living especially after industrial revolution. “Fossil fuels are still the main source of energy. But the endless consumption of fossil fuels will bring the reserve to an end in near future. As a result fuel prices are soaring because of diminishing supply than demand. So researchers world over are in constant search of alternate fuels in the last three to four years, aimed at reducing CO2 emissions and global dependency on fossil fuels. The use of vegetable oils as a fuel in diesel engine causes some problems due to their high viscosity compared with conventional diesel fuel. Various techniques and methods are used to solve the problems resulting from high viscosity. One of these techniques is blending of fuel. In this study, a mix of 5%, 10%,15%, 20%, 25% sesame oil and diesel fuel was used as alternative fuel in a direct injection diesel engine. Diesel engine performance and exhaust emissions were investigated and compared with the diesel fuel in a diesel engine. The experimental results show that the engine power and torque of the mixture of sesame oil diesel fuel are close to the values obtained from diesel fuel and the amount of exhaust emissions are lower than those of diesel fuel. Hence it is seen that mix of sesame oil 20% and 80% diesel fuel can be used as an alternative fuel successfully in a diesel engine without any modification and also it is an environmental friendly” fuel in terms of emission parameters.

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