Investigation of Papaya Seed Methyl Ester Blended Diesel for Emission Reduction in Direct Injection Engines

Author(s):  
J. Hemanandh ◽  
S. Ganesan ◽  
A. Shaik Fiaz ◽  
P. Gunasekar

The diesel engines are emitting toxic gases which affect the greenhouse gases. In this research, the methyl esters were extracted from waste papaya seed oil using transesterification process. The Direct Injection Kirloskar diesel engine at constant speed of 1500 rpm and compression ratio of 17.5:1 was used to test the fuel. The injection nozzle holes were varied from 3 to 4 holes. The emissions were recorded using AVL gas analyser. The 20% blend with 4-hole nozzle shows reduction in NOx, CO and CO2 emissions at full load. The performance is increased for 30% blend at full load.

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.


2016 ◽  
Vol 20 (suppl. 4) ◽  
pp. 999-1004 ◽  
Author(s):  
Senthil Ramalingam ◽  
Arunan Kaliyaperumal ◽  
Mohan Govindasamy ◽  
Manikandan Ezhumalai ◽  
Chandan Kumara

2018 ◽  
Vol 7 (1.9) ◽  
pp. 1
Author(s):  
V. Naresh ◽  
S. Prabhakar ◽  
K. Annamalai ◽  
P. Naveenchandran

The study titled “Performance and Emission Studies on a 4 stroke Diesel Engine Using Methyl Ester of ALGAE Oil with EGR” involves detail investigation of characteristics (performance and emission] of Blends of Methyl Esters of ALGAE oil by varying the EGR control value (5 to 20%] using direct injection diesel engine.From the preceding studies on similar title it’s established that the release of NOX is higher in ALGAE based biodiesel.The focus of this study is about the NOX emission and how it can be reduced by using the cooled EGR.


2019 ◽  
Author(s):  
Chem Int

Biodiesel produced by transesterification process from vegetable oils or animal fats is viewed as a promising renewable energy source. Now a day’s diminishing of petroleum reserves in the ground and increasing environmental pollution prevention and regulations have made searching for renewable oxygenated energy sources from biomasses. Biodiesel is non-toxic, renewable, biodegradable, environmentally benign, energy efficient and diesel substituent fuel used in diesel engine which contributes minimal amount of global warming gases such as CO, CO2, SO2, NOX, unburned hydrocarbons, and particulate matters. The chemical composition of the biodiesel was examined by help of GC-MS and five fatty acid methyl esters such as methyl palmitate, methyl stearate, methyl oleate, methyl linoleate and methyl linoleneate were identified. The variables that affect the amount of biodiesel such as methanol/oil molar ratio, mass weight of catalyst and temperature were studied. In addition to this the physicochemical properties of the biodiesel such as (density, kinematic viscosity, iodine value high heating value, flash point, acidic value, saponification value, carbon residue, peroxide value and ester content) were determined and its corresponding values were 87 Kg/m3, 5.63 Mm2/s, 39.56 g I/100g oil, 42.22 MJ/Kg, 132oC, 0.12 mgKOH/g, 209.72 mgKOH/g, 0.04%wt, 12.63 meq/kg, and 92.67 wt% respectively. The results of the present study showed that all physicochemical properties lie within the ASTM and EN biodiesel standards. Therefore, mango seed oil methyl ester could be used as an alternative to diesel engine.


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.


Author(s):  
Shyamsundar Rajaraman ◽  
G. K. Yashwanth ◽  
T. Rajan ◽  
R. Siva Kumaran ◽  
P. Raghu

World at present is confronted with the twin crisis of fossil fuel depletion and environmental pollution. Rapid escalation in prices and hydrocarbon resources depletion has led us to look for alternative fuels, which can satisfy ever increasing demands of energy as well as protect the environment from noxious pollutants. In this direction an attempt has been made to study a biodiesel, namely Moringa Oil Methyl Esters [MOME]. All the experiments were carried out on a 4.4 kW naturally aspirated stationary direct injection diesel engine coupled with a dynamometer to determine the engine performance and emission analysis for MOME. It was observed that there was a reduction in HC, CO and PM emissions along with a substantial increase in NOx. MOME and its blends had slightly lower thermal efficiency than diesel oil.


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