Effect of Preheated Jatropha Oil and Jatropha Oil Methyl Ester with Producer Gas on Diesel Engine Performance

An experimental study to measure the evaporation rates, engine performance and emission characteristics of used vegetable oil methyl ester and its blends with producer gas on naturally aspirated vertical single cylinder water cooled four stroke single cylinder diesel engine is presented. The thermo-physical properties of all the bio fuel blends have been measured and presented. Evaporation rates of used vegetable oil methyl ester and its blends have been measured under slow convective environment of air flowing with a constant temperature and the values are compared with fossil diesel. Evaporation constants have been determined by using the droplet regression rate data. The fossil diesel, biodiesel blends and producer gas have been utilized in the test engine with different load conditions to evaluate the performance and emission characteristics of diesel engine and the results are compared with each other. From these observations, it could be noted that, smoke and hydrocarbon drastically reduced with biodiesel in the standard diesel engine without any modifications.

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Experimental Investigations on a Jatropha Oil Methyl Ester Fuelled Diesel Engine

ASME 2005 Internal Combustion Engine Division Spring Technical Conference ◽

10.1115/ices2005-1040 ◽

2005 ◽

Cited By ~ 1

Author(s):

J. G. Suryawanshi ◽

N. V. Deshpande

Keyword(s):

Diesel Engine ◽

Methyl Ester ◽

Engine Performance ◽

Diesel Oil ◽

Experimental Investigations ◽

Jatropha Oil ◽

Engine Exhaust ◽

Performance And Emission ◽

Unburned Hydrocarbon ◽

Hydrocarbon Emission

Biodiesel is a non-toxic, biodegradable and renewable fuel with the potential to reduce engine exhaust emissions. The methyl ester of jatropha oil, known as biodiesel, is receiving increasing attention as an alternative fuel for diesel engines. The biodiesel is obtained through transesterification process. Various properties of the biodiesel thus developed are evaluated and compared in relation to that of conventional diesel oil. In the present investigation neat jatropha oil methyl ester (JME) as well as the blends of varying proportions of jatropha oil methyl ester (JME) and diesel were used to run a CI engine. A four stroke diesel engine having compression ratio of 17.5: 1 and developing 5.2 kW at 1500 rpm was used. Experiments were initially carried out on the engine at all loads using diesel to provide baseline data. Significant improvements in engine performance and emission characteristics were observed for JME fuel. The addition of jatropha methyl ester (JME) to diesel fuel has significantly reduced HC, CO, CO2 and smoke emissions but it increases the NOx emission slightly. The maximum reduction in smoke emission was observed by 35% in case of neat biodiesel operation as compared to diesel. The unburned hydrocarbon emission was drastically reduced by 53% for neat biodiesel operation.

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Influence of diethyl ether on engine performance and emissions characteristics of blends of butanol, pentanol or biodiesel (neem oil methyl ester) in a single cylinder diesel engine

International Journal of Ambient Energy ◽

10.1080/01430750.2018.1537938 ◽

2018 ◽

pp. 1-9 ◽

Cited By ~ 3

Author(s):

Jeya Jeevahan ◽

G. Britto Joseph ◽

R. B. Durairaj ◽

G. Mageshwaran ◽

V. Sriram

Keyword(s):

Diesel Engine ◽

Methyl Ester ◽

Diethyl Ether ◽

Engine Performance ◽

Neem Oil ◽

Single Cylinder ◽

Performance And Emissions ◽

Engine Performance And Emissions ◽

Neem Oil Methyl Ester

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Effects of antioxidant additives on engine performance and exhaust emissions of a diesel engine fueled with canola oil methyl ester–diesel blend

Energy Conversion and Management ◽

10.1016/j.enconman.2013.07.037 ◽

2013 ◽

Vol 76 ◽

pp. 145-154 ◽

Cited By ~ 112

Author(s):

Erol İleri ◽

Günnur Koçar

Keyword(s):

Diesel Engine ◽

Methyl Ester ◽

Canola Oil ◽

Engine Performance ◽

Exhaust Emissions ◽

Antioxidant Additives

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Modification of a Direct Injection Diesel Engine in Improving the Ignitability and Emissions of Diesel–Ethanol–Palm Oil Methyl Ester Blends

Energies ◽

10.3390/en12142644 ◽

2019 ◽

Vol 12 (14) ◽

pp. 2644 ◽

Cited By ~ 1

Author(s):

Norhidayah Mat Taib ◽

Mohd Radzi Abu Mansor ◽

Wan Mohd Faizal Wan Mahmood

Keyword(s):

Diesel Engine ◽

Methyl Ester ◽

Ambient Temperature ◽

Palm Oil ◽

Compression Ratio ◽

Direct Injection ◽

Cetane Number ◽

Engine Performance ◽

Injection Timing ◽

Injection Strategies

Blending diesel with biofuels, such as ethanol and palm oil methyl ester (PME), enhances the fuel properties and produces improved engine performance and low emissions. However, the presence of ethanol, which has a small cetane number and low heating value, reduces the fuel ignitability. This work aimed to study the effect of injection strategies, compression ratio (CR), and air intake temperature (Ti) modification on blend ignitability, combustion characteristics, and emissions. Moreover, the best composition of diesel–ethanol–PME blends and engine modification was selected. A simulation was also conducted using Converge CFD software based on a single-cylinder direct injection compression ignition Yanmar TF90 engine parameter. Diesel–ethanol–PME blends that consist of 10% ethanol with 40% PME (D50E10B40), D50E25B25, and D50E40B10 were selected and conducted on different injection strategies, compression ratios, and intake temperatures. The results show that shortening the injection duration and increasing the injected mass has no significant effect on ignition. Meanwhile, advancing the injection timing improves the ignitability but with weak ignition energy. Therefore, increasing the compression ratio and ambient temperature helps ignite the non-combustible blends due to the high temperature and pressure. This modification allowed the mixture to ignite with a minimum CR of 20 and Ti of 350 K. Thus, blending high ethanol contents in a diesel engine can be applied by advancing the injection, increasing the CR, and increasing the ambient temperature. From the emission comparison, the most suitable mixtures that can be operated in the engine without modification is D50E25B25, and the most appropriate modification on the engine is by increasing the ambient temperature at 350 K.

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Hydrogen Injection in a Dual Fuel Engine Fueled with Low-Pressure Injection of Methyl Ester of Thevetia Peruviana (METP) for Diesel Engine Maintenance Application

Energies ◽

10.3390/en13215663 ◽

2020 ◽

Vol 13 (21) ◽

pp. 5663 ◽

Cited By ~ 1

Author(s):

Mahantesh Marikatti ◽

N. R. Banapurmath ◽

V. S. Yaliwal ◽

Y.H. Basavarajappa ◽

Manzoore Elahi M Soudagar ◽

...

Keyword(s):

Diesel Engine ◽

Methyl Ester ◽

Gas Flow ◽

Engine Performance ◽

Gaseous Fuel ◽

Dual Fuel ◽

Injection Timing ◽

Thevetia Peruviana ◽

Oil Source ◽

Engine Maintenance

The present work is mapped to scrutinize the consequence of biodiesel and gaseous fuel properties, and their impact on compression-ignition (CI) engine combustion and emission characteristics in single and dual fuel operation. Biodiesel prepared from non-edible oil source derived from Thevetia peruviana belonging to the plant family of Apocynaceaeis. The fuel has been referred as methyl ester of Thevetia peruviana (METP) and adopted as pilot fuel for the effective combustion of compressed gaseous fuel of hydrogen. This investigation is an effort to augment the engine performance of a biodiesel-gaseous fueled diesel engine operated under varied engine parameters. Subsequently, consequences of gas flow rate, injection timing, gas entry type, and manifold gas injection on the modified dual-fuel engine using conventional mechanical fuel injections (CMFIS) for optimum engine performance were investigated. Fuel consumption, CO, UHC, and smoke formations are spotted to be less besides higher NOx emissions compared to CMFIS operation. The fuel burning features such as ignition delay, burning interval, and variation of pressure and heat release rates with crank angle are scrutinized and compared with base fuel. Sustained research in this direction can convey practical engine technology, concerning fuel combinations in the dual fuel mode, paving the way to alternatives which counter the continued fossil fuel utilization that has detrimental impacts on the climate.

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