scholarly journals Performance and Emission Characteristics of Dual Biofuel (CNSL and Rice Bran Oil) Blended with Diesel in CI Engine

In recent trends due to the increase in rate of petrol and diesel prices biodiesel has been used as an alternate fuel in many of the fast developing countries. However in our country also many research work has been done using different oils. In this paper instead of using a single oil, two different oils was mixed with diesel in different blends and the emissions were calculated and the results were plotted. The two different oils used was the Cashew nutshell liquid (CNSL) and the Rice bran oil. Cashew oil is found to be a by-product which is available from the Cashew industry and after the transesterification process the cardanol obtained was used without any modifications. Rice bran oil is mostly found in the places where rice is grown in a huge quantity and more number of research works has not been done in this oil. By the transesterification process the rice bran oil was prepared and mixed with the CNSL in the different proportions, which was also mixed with diesel in some amounts and the different characteristics were evaluated and plotted.

Author(s):  
P. Sivashankari ◽  
A. Krishnamoorthy ◽  
K.N. Balaji

Due to depletion of fossil fuels, concerns about energy security and global warming make renewable energy resources more attractive. In this regard, using biodiesel seems to be a possible and feasible source of energy for transportation. This paper presents an investigation of the performance and emission characteristics of CI engine using 10% blend of rice bran oil as fuel and ceramic oxide coated piston.


2014 ◽  
Vol 984-985 ◽  
pp. 839-844
Author(s):  
Natesan Kanthavelkumaran ◽  
P. Seenikannan

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.


2006 ◽  
Author(s):  
V. Anandram ◽  
J. Karthik ◽  
S. Ramakrishnan ◽  
S. Saravanan ◽  
G. Lakshmi Narayana Rao

Author(s):  
Burhani M Burhani ◽  
Mohammad N M Jaafar ◽  
Norazila B Othman ◽  
Anis A M Azli ◽  
Mazlan Said ◽  
...  

Author(s):  
Shailendra Sinha ◽  
Avinash Kumar Agarwal

Over the past several years, there has been increased interest in alternative diesel fuels to control emissions and provide energy security. Biodiesel is a fuel that can be made from renewable biological sources such as vegetable oils and animal fats, has been recognized as an environment friendly alternative to mineral diesel. In present investigation, rice bran oil (non-edible) was transesterified to methyl ester and reaction conditions for transesterifcation process for rice bran oil were optimized. Various properties like viscosity, density, flash point, calorific value of the biodiesel thus prepared are characterized as per ASTM norms (ASTM D6751) and found comparable to diesel. Steady state engine dynamometer test at full throttle conditions have been carried out to evaluate the performance and emission characteristics of a medium duty transportation DI diesel engine. Engine was fuelled with various blends of rice-bran oil biodiesel (ROME) and mineral diesel ranging from 5% biodiesel to 100% biodiesel (5, 10, 20, 30, 50, and 100%). Performance and emission data were compared to the baseline data obtained using mineral diesel. Same engine without any hardware modification has been adopted for tests on all fuel blends. The results of this experimental investigation showed that biodiesel and biodiesel blends exhibited almost similar torque and power characteristics. Biodiesel blends up to 20% produced slightly higher torque and improved performance. Improvement in fuel conversion efficiency was found for lower concentration blends i.e. up to 20%. Lowest efficiency was found for 100% biodiesel blend. All the biodiesel blends emitted lower total hydrocarbon, carbon monoxide emissions and smoke opacity but slightly higher NOx emissions during the full throttle tests. Emission tests with all the fuel blends have also been carried out using European 13 MODE test (ECE R49) procedure. Drastic reduction in THC and CO and slight increase in NOx was observed.


Author(s):  
A. Samuel Raja ◽  
G. Lakshmi Narayana Rao ◽  
N. Nallusamy ◽  
M. Selva Ganesh Kumar

The present work deals with the experimental investigations on the effect of refined rice bran oil and its blends with diesel on performance and emission characteristics of diesel engine with different combustion chamber geometry. The engine was tested with various neat vegetable oils and it was found that with refined rice bran oil the performance and emission characteristics were comparable with that of neat diesel. The K- factor of the combustion chamber geometry (ratio of the piston bowl volume to the clearance volume) was maintained at 0.74. The D/d ratio (ratio of piston crown diameter to piston bowl diameter) was altered to achieve re-entrant and torroidal shapes from spherical shape. Tests were carried out for each blend, with particular geometry of combustion chamber. Results with different combustion chamber geometry and different blends have been compared.


Author(s):  
Rajat Kumar Sharma ◽  
Jayant Singh ◽  
Ankit Negi ◽  
Deepshikha Azad

Increasing demand and rapid depletion of fossil fuels have together prompted the researchers of many countries to look for alternate renewable fuels. This study is an attempt to test the feasibility of rice bran oil as fuel in C. I. engine in its original and in its refined form. It is generally produced from rice bran which is a by-product produced during paddy processing. Its viscosity though relatively higher than diesel can be reduced by natural sedimentation process. In this attempt, the performance and emission characteristics of rice bran oil and its refined form were studied and compared with diesel by employing them as a fuel in a single cylinder, direct injection, 4.4 KW, air cooled diesel engine. The performance characteristics revealed that the brake thermal efficiency of the rice bran oil was higher than its refined form and were marginally lower than that of diesel. Emission measurements were carried out using MRU Delta 1600L gas analyzer and the soot concentration was measured with AVL smoke meter. It was found that though blends of rice bran oil with ethanolexhibited greater soot concentration characteristics than rice bran oil and diesel at all loads, it exhibited desirable characteristics for other emissions such as lower CO, HC, NOx emissions and lower exhaust gas temperatures with increasing load.


Sign in / Sign up

Export Citation Format

Share Document