scholarly journals The Experimental Features of a Compression Ignition Engine Running On Pure Diesel and Mixtures of Diesel and Manilkara Zapota Methyl Ester

presently, the world is grieving with lack of energy sources, since the petroleum reserve are being depleted very soon, moreover the world’s temperature is rapidly increasing resulting from the emissions of automobile. More consideration should be given to this issue so, the researchers across the globe making difficult trials to find the best substitute energy reserve which swaps the fossil diesel petroleum. This article deals with manilkara zapota methyl ester, the biodiesel taken from a non-edible feed stock Manilkara Zapota seed generally known as Sapodilla. It has exceptional fuel properties like fossil diesel. By the transesterification process, Manilkara Zapota Methyl Ester (MZME) was taken out from crude manilkara zapota seed oil. Numerous test samples were equipped in the combination ratios ranging from 10% to 30% and the mixtures were selected as ZB10D90 (10% MZME + 90% Pure Diesel), ZB20D80 (20% MZME + 80% Pure Diesel) and ZB30D70 (30% MZME + 70% Pure Diesel). An experimental examination was performed on a single cylinder four stroke direct injection diesel engine to find out the emission, combustion properties, and performance at continuous speed and numerous load circumstances. The experimental outcomes were exposed that, at complete load condition, the performance aspects like BSFC and BTE were improved by 7.69% and 7.44% respectively, and the parameters of emission like CO was reduced greatly by 64% whereas NOx , HC and smoke opacity were concurrently increased by 12.36%, 6.67%, and 3.88% respectively, but no big variance was found in the emission of CO2 when compared to diesel fuel. Heat release rate was decreased by 5.04% and cylinder peak pressure was improved slightly

Author(s):  
Balaji Venkatesan ◽  
Kaliappan Seeniappan ◽  
Ezhumalai Shanmugam ◽  
Socrates Subramanian ◽  
Jayaseelan Veerasundaram

Energy is vital to the profitable growth of every nation and to stimulate new research. Only natural resources can meet the growing energy demand in recent years, biodiesel has become very interested in the energy as well as environmental advantages that it can be combined with mineral diesel fuel in any quantity. The research focuses on the study of the replacement of diesel with a safflower methyl ester. The engine tests shall be performed using the safflower methyl ester as fuel in the DI diesel engine. The combustion, emission and performance characteristics were studied using alternative fuels and mixtures. SAfflower Methyl Ester 80% (SAME80) and SAME100 have high heat release rates. Nitrogen oxides were higher by about 50%, carbon monoxide decreased by 10%, unburnt hydrocarbon was slightly higher and the thermal efficiency was higher for the SAME than for diesel fuel.


Author(s):  
R. Anand ◽  
G. R. Kannan ◽  
P. Karthikeyan

The growing environmental concerns and the depletion of petroleum reserves have caused the development of alternative fuels. Biodiesel and alcohols are receiving increasing attention as alternative fuels for diesel engines due to well oxygenated, renewable fuels. In this study, a single cylinder, naturally aspirated, direct injection diesel engine has been experimentally investigated using ethanol-blended waste cooking oil methyl ester. Various proportion of biodiesel-ethanol blends were used in stability test at the different temperatures from 10 °C to 40 °C in the increment of 10°C. Based on the stability tests and improvement in fuel properties, B90E10 (90% biodiesel and 10% ethanol) and B80E20 (80% biodiesel and 20% ethanol) were selected for this investigation. Test results revealed that the improved engine characteristics with the use of B9E10 especially in comparison with B80E20. Reduction in brake thermal efficiency by 3.8% and slightly higher brake specific energy consumption of 15.1% were observed with B90E10 when compared to diesel at 100% load condition. Carbon monoxide, unburnt hydrocarbon, nitric oxide and smoke emission of B90E10 were reduced by 0.09% by vol., 10 ppm, 187 ppm and 12.9%, respectively compared to diesel. B90E10 exhibited lower peak pressure of 70.5 bar, slightly longer ignition delay of 14.2 °CA, and combustion duration of 43.3 °CA was also observed at 100% load condition.


2014 ◽  
Vol 663 ◽  
pp. 19-25 ◽  
Author(s):  
H.G. How ◽  
H.H. Masjuki ◽  
M.A. Kalam ◽  
Y.H. Teoh

The effects of using ethanol as additive to biodiesel-diesel blends on engine performance, emissions and combustion characteristics was investigated on a four-cylinder, turbocharged and high-pressure common-rail direct injection diesel engine. Three test fuels have been compared: baseline diesel, coconut oil methyl ester (CME) with 20% of biodiesel by volume (B20) and 5% of ethanol and 20% of CME by volume (B20E5). The tests were performed in steady state conditions at 2000 rpm with 25%, 50% and 75% load setting conditions. The results indicate that higher brake specific fuel consumption and brake thermal efficiency is observed when operating with B20 and B20E5 blend. B20E5 blend shows reduction in smoke opacity, CO and NOx emissions compared to baseline diesel fuel. In terms of combustion characteristics, B20E5 shows slightly higher in both of the peak pressure and peak of HRR at low engine load.


Biofuels ◽  
2016 ◽  
Vol 8 (2) ◽  
pp. 297-305 ◽  
Author(s):  
Yashwanth Kutti Pochareddy ◽  
Aditya Krishna Ganeshram ◽  
Homeshwar Machgahe Pyarelal ◽  
Srinivasan Sridharan ◽  
Aravind Asokan ◽  
...  

2019 ◽  
Vol 8 (2S8) ◽  
pp. 1835-1839

An Experiment has been conducted performance and emission and combustion characteristics of a single-cylinder by using country borage methyl ester (CBM) and diesel blend in a direct injection at a constant speed diesel engine. In the past few years, the investigation on the biofuels has been considerable interest by virtue of their unique physical and chemical properties. This experiment works involves the usage of country borage methyl ester and diesel blend, to study its effect on performance, combustion and emission characteristics. Diesel and country borage methyl ester fuel blends are 20%, 40%, 60%, 80%, 100%, and varying load of 25% increment from no load to full load. The experiment was carried out for engine performance parameter such as brake thermal efficiency (BTE) of CBM 20 blend was slightly higher 3% than that of diesel. And the engine emission parameters such as hydrogen emissions is reduced 22% for CBM 20 and 32.5% for CBM 40 blend. And NOx emission was slightly increased by 5% for CBM 20 and 8% for CBM 40.


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