Investigations on Partial Addition of n-Butanol in Sunflower Oil Methyl Ester Powered Diesel Engine

2017 ◽  
Vol 140 (1) ◽  
Author(s):  
Vishal V. Patil ◽  
Ranjit S. Patil

Research focused in the present paper to evaluate the combustion, performance, and emission characteristics of refined biodiesel (refined biofuel) such as sunflower oil methyl ester (SOME) with the partial addition of n-butanol (butanol) in it. Various characteristics of butanol–SOME blends with varying volume percentage of butanol such as 5, 10, 15, and 20 in butanol–SOME blends were compared with the characteristics of neat SOME (100%) and neat diesel (100%). It is investigated that with an increase in butanol content from 5% to 20% in butanol–SOME blends at full load condition, brake-specific fuel consumption, and NOx emissions were increased by 11% and 43%, respectively, while brake thermal efficiency (BTE) was decreased by 8%. At full load condition, for all the selected fuels hydrocarbon (HC) emissions were found to be negligible, i.e., less than 0.12 g/kWh. Carbon monoxide (CO) emissions at full load condition for the four butanol–SOME blends were observed to be four to six times more than observed CO emissions in case of neat SOME and neat diesel. Various characteristics of all the selected fuels were compared in order to finalize the promising alternate sustainable renewable fuel. Thus, study reports the solution for increase in demand and price of shortly diminishing conventional diesel fuel which is widely used for power generation and also to reduce the serious issues concerned with environmental pollution due to usage of neat diesel.

Author(s):  
Vishal V Patil ◽  
Ranjit S Patil

The objective of present study is to evaluate the combustion, performance, and emission characteristics of refined biodiesel (biofuel) such as rubber seed oil methyl ester with the partial addition of n-butanol (butanol) in it in a single cylinder four stroke diesel engine operated at a constant speed of 1500 rpm. Various characteristics of butanol–rubber seed oil methyl ester blends with varying volume percentage of butanol such as 5, 10, 15, and 20 in butanol–rubber seed oil methyl ester blends were compared with the characteristics of neat rubber seed oil methyl ester (100%) and neat diesel (100%) at various load conditions on engine (such as 0%, 25%, 50%, 75%, and 100%) for the compression ratio 18. It is found that brake specific fuel consumption was increased by 17% with an increase in butanol content from 5% to 20% in butanol–rubber seed oil methyl ester blends at full load condition. Brake thermal efficiency was decreased by 14% with an increase in butanol content from 5% to 20% in butanol–rubber seed oil methyl ester blends at full load condition. Carbon monoxide and HC emissions were found to be negligible, i.e. less than 0.1% and 35 ppm, respectively, for all selected fuels. NOx emissions were decreased by 10% with an increase in butanol content from 5% to 20% in butanol–rubber seed oil methyl ester blends at full load condition. Various characteristics were compared for six fuels (neat rubber seed oil methyl ester, four renewable butanol–rubber seed oil methyl ester blends, and neat diesel) in order to finalize the promising alternate sustainable renewable fuel in place of shortly diminishing conventional diesel fuel in order to provide the solution for increase in demand and price of conventional fuel (diesel) for power generation and to reduce the serious issues concerned with environmental pollution due to usage of neat diesel.


Author(s):  
Veerbhadrappa a, b, Telgane ◽  
Sharanappa Godiganur ◽  
N. Keerthi kumar ◽  
T.K. Chandrashekar

In the present experimental investigation, the performance and emission characteristics of four stroke single cylinder water-cooled DI diesel engine using dual hybrid biodiesel is evaluated. Dual hybrid biodiesel produced from Simarouba Oil Methyl Ester (SuOME) and Jatropha Oil Methyl Ester (JOME) is used as a fuel to run the engine. Both the methyl esters are mixed in equal % and blended with diesel (B20 to B100). The fuel properties such as kinematic viscosity, calorific value, flash point, carbon residue and specific gravity were found for the prepared biodiesel. The results showed that B20 has almost closer brake thermal efficiency compared to that of the conventional diesel fuel. Except NOx, B100 has recorded very less emission of CO, CO2 and HC compared to that of diesel fuel.


2015 ◽  
Vol 789-790 ◽  
pp. 179-183 ◽  
Author(s):  
G.R.K. Sastry ◽  
Jibitesh Kumar Panda ◽  
Prasenjit Dutta

The scarcity of conventional fossil fuel, their increasing cost and the detrimental effects of combustion engendered pollutants seems to make alternative sources more appealing. Fish methyl ester is available abundantly. The present experiment assess the performance and emission distinctive of a diesel engine using dissimilar blends of methyl ester of fish, 2-EHN and ethanol with mineral diesel. Methyl ester and diesel additive was blended with diesel in proportions of 20% and 100% by mass and studied under full load conditions. The performance and emission parameters were found to be better than the mineral diesel.


Author(s):  
V. Anandram ◽  
S. Ramakrishnan ◽  
J. Karthick ◽  
S. Saravanan ◽  
G. LakshmiNarayanaRao

In the present work, the combustion, performance and emission characteristics of sunflower oil, sunflower methyl ester and its blends were studied and compared with diesel by employing them as fuel in a single cylinder, direct injection, 4.4 KW, air cooled diesel engine. Emission measurements were carried out using five-gas exhaust gas analyzer and smoke meter. The performance characteristics of Sunflower oil, Sunflower methyl ester and its blends were comparable with those of diesel. The components of exhaust such as HC, CO, NOx and soot concentration of the fuels were measured and presented as a function of load and it was observed that the blends had similar performance and emission characteristics as those of diesel. NOx emissions of sunflower oil methyl ester were slightly higher than that of diesel but that of sunflower oil was slightly lower than that of diesel. With respect to the combustion characteristics it was found that the biofuels have lower ignition delay than diesel. The heat release rate was very high for diesel than for the biofuel.


2019 ◽  
Vol 8 (4) ◽  
pp. 4048-4052

Biodiesel, a derivative of vegetable oils and animal fats, is used nowadays as an alternative renewable and sustainable fossil fuel. In this work, the investigation of manufacture, characterization, and results of biodiesel blends are carried out using two important feedstock’s, sunflower oil and ricebran oil on engines. For the collective advantageous of sunflower oil and ricebran oil, the two biodiesels are combined together and the mixture is analysed to assess the engine performance and emission characteristics. NaOH catalyzed transesterification process is used for producing the Biodiesels A 4.4 kW, four-stroke, single-cylinder and direct fuel injection diesel engine is used for measuring physic-chemical with full load and varying speed conditions and using the specifications of ASTM D6751 standard, the properties are compared. It is observed that the Biodiesel mixtures produce a low brake torque and high brake-specific fuel consumption (BSFC) in addition to the reduction of CO and HC emissions. NOx, however, is reduced considerably with the improvement of brake thermal efficiency. The Performance analysis indicates that the mixture of sunflower oil and ricebran oil improves performance and emission characterizes over sunflower oil and ricebran oil biodiesel when they are unmixed..


2014 ◽  
Vol 592-594 ◽  
pp. 1632-1637
Author(s):  
Ramalingam Senthil ◽  
C. Paramasivam ◽  
Rajendran Silambarasan

Nerium methyl ester, an esterified biofuel, has an excellent cetane number and a reasonable calorific value. It closely resembles the behaviour of diesel. However, being a fuel of different origin, the standard design limits of a diesel engine is not suitable for Nerium methyl ester (NME). Therefore, in this work, a set of design and operational parameters are studied to find out the optimum performance of Nerium methyl ester run diesel engine. This work targets at finding the effects of the engine design parameter viz. fuel injection pressure (IP) on the performance with regard to specific fuel consumption (SFC), brake thermal efficiency (BTHE) and emissions of CO, CO2, HC, NOxwith N20 as fuel. Comparison of performance and emission was done for different values of injection pressure to find best possible condition for operating engine with NME. For small sized direct injection constant speed engines used for agricultural applications, the optimum injection pressure was found as 240bar.Methyl esters from Nerium, with properties close to diesel; show better performance and emission characteristics. Hence Nerium (N20) blend can be used in existing diesel engines without compromising the engine performance. Diesel (25%) thus saved will greatly help the interests of railways in meeting the demand for fuel,as diesel trains are operated at maximum load condition.


2015 ◽  
Vol 787 ◽  
pp. 717-721
Author(s):  
Sangeetha Krishnamoorthy ◽  
K. Rajan ◽  
K.R. Senthil Kumar ◽  
M. Prabhahar

This paper investigates the performance and emission characteristics of 20% cashew nut shell liquid (CNSL)-diesel blend (B20) in a direct injection diesel engine. The cashew nut shell liquid was prepared by pyrolysis method. The test was conducted with various nozzle opening pressures like 200 bar, 225 bar and 250 bar at different loads between no load to full load. The results showed that the brake thermal efficiency was increased by 2.54% for B20 with 225 bar at full load. The CO and smoke emissions were decreased by 50% and 14% respectively and the NOx emission were decreased slightly with 225 bar injection pressure compared with 200 bar and 250 bar at full load. On the whole, it is concluded that the B20 CNSL blend can be effectively used as a fuel for diesel engine with 225 bar injection pressure without any modifications.


Author(s):  
Mathan Raj Vijayaragavan ◽  
Ganapathy Subramanian ◽  
Lalgudi Ramachandran ◽  
Manikandaraja Gurusamy ◽  
Rahul Kumar Tiwari ◽  
...  

Biodiesel is a renewable substitute to conventional diesel and offers cleaner performance. Thispaper deals with performance characteristics of four stroke, water cooled Compression Ignition (CI) enginefuelled with four different oils: diesel, diesel-punnai oil biodiesel 10% (B10), diesel-punnai oil biodiesel20% (B20) and diesel-punnai oil biodiesel 30% (B30). The present research, experiments were conductedto study the effect of viscosity, cetane number, flash point, calorific value and density on performancecharacteristics of diesel, Punnai oil biodiesel and its different blends (B10, B20, B30). The experimentalresults of this study showed that the diesel has 2.6% and 4.6% higher brake specific fuel consumption(BSFC) as compared to B10 and B20, respectively at full load, whereas BSFC of diesel was same as B30at higher load. Volumetric efficiency and mechanical efficiency of B10 was 1.2% and 7.5% higher ascompared to diesel at full load condition. Brake Thermal Efficiency (BTE) and indicated thermal efficiencyof B20 was 8.12% and 7% higher as compared to diesel at full load. From this study, it is concluded thatPunnai oil biodiesel could be used as a viable alternative fuel in a single cylinder, four stroke, water cooleddirect injection diesel engine.


2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
S. Savariraj ◽  
T. Ganapathy ◽  
C. G. Saravanan

Biodiesel derived from nonedible feed stocks such as Mahua, Jatropha, Pongamia are reported to be feasible choices for developing countries including India. This paper presents the results of investigation of performance and emissions characteristics of diesel engine using Mahua biodiesel. In this investigation, the blends of varying proportions of Mahua biodiesel and diesel were prepared, analyzed compared with the performance of diesel fuel, and studied using a single cylinder diesel engine. The brake thermal efficiency, brake-specific fuel consumption, exhaust gas temperatures, Co, Hc, No, and smoke emissions were analyzed. The tests showed decrease in the brake thermal efficiencies of the engine as the amount of Mahua biodiesel in the blend increased. The maximum percentage of reduction in BTE (14.3%) was observed for B-100 at full load. The exhaust gas temperature with the blends decreased as the proportion of Mahua increases in the blend. The smoke, Co, and No emissions of the engine were increased with the blends at all loads. However, Hc emissions of Mahua biodiesels were less than that of diesel.


Author(s):  
V. Hariram ◽  
J. Godwin John ◽  
Subramanyeswara Rao ◽  
S. K. Baji Babavali ◽  
S. Muni Lokesh ◽  
...  

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.


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