Effect of Injector Opening Pressure and Injection Timing on Exhaust Emissions and Combustion Characteristics of Rice Bran Oil in Crude Form and Biodiesel Form in Direct Injection Diesel Engine

Rao, N. Durga Prasada; Prasad, B. Anjeneya

doi:10.9790/3021-04270919

Cited by 4 publications

(3 citation statements)

References 22 publications

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“…Experiments were conducted with biodiesel in conventional engine. [8][9][10][11].They reported that marginal improvement of performance and reduction of particulate emissions and increase of nitrogen oxide levels with biodiesel operation in comparison with diesel operation on conventional engine.…”

Section: Introductionmentioning

confidence: 99%

Reduction of Exhaust Emissions of Semi Adiabatic Diesel Engine With Alternative Fuels

Janardhan¹,

Krishna²

2021

International Journal of Mechanical Engineering and Technology (Ijmet)

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Drawbacks associated with crude vegetable oils (high viscosity and low volatility)and alcohol (low energy content and cetane number) for use in compression ignition engine call for biodiesels. These biodiesels have numerous advantages compared to fossil fuels as they are renewable, biodegradable, provide energy security and foreign exchange savings besides addressing environmental concerns and socio-economic issues. However, these alternative fuels (vegetable oils and its biodiesels) are highly to moderate viscous and require hot combustion chamber, provided by semi adiabatic diesel engine. Investigations were carried out to determine exhaust emissions of a high grade semi adiabatic diesel engine consisted of air gap insulated piston, air gap insulated liner and ceramic coated cylinder head with different operating conditions [normal temperature and pre-heated temperature] of crude rice bran oil and its biodiesel with varied injector opening pressure. Exhaust emissions were determined at various values of brake mean effective pressure of the engine fuelled with crude rice bran oil and its biodiesel. Comparative studies on exhaust emissions were made with diesel working on similar conditions. Particulate emissions decreased, while NOx levels increased with LHR engine with biodiesel operation. Exhaust emissions improved with increase of injector opening pressure and preheating of biodiesel.

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Section: Introductionmentioning

confidence: 99%

Reduction of Exhaust Emissions of Semi Adiabatic Diesel Engine With Alternative Fuels

Janardhan¹,

Krishna²

2021

International Journal of Mechanical Engineering and Technology (Ijmet)

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“…Rudolph diesel, the inventor of the engine that bears his name, experimented with fuels ranging from powdered coal to peanut oil [1] Several researchers conducted investigations on biodiesel with conventional engine (CE) and reported that the performance marginally improved, along with reduction of particulate emissions. [2][3][4][5][6][7][8]. However, they further reported that NOx emissions were marginally higher with biodiesel operation in comparison with neat diesel operation on CE.…”

Section: Introductionmentioning

confidence: 99%

Influence of Injection Pressure on Exhaust Emissions of Insulated Diesel Engine Fueled With Biogas and Biodiesel

Krishna¹,

Krishna²,

Sri³

2021

International Journal of Mechanical Engineering and Technology (Ijmet)

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As the fossil fuels are depleting day by day due to heavy demand in various sectors like agriculture, transport etc., escalation of fuel prices in International Oil Market causing economic burden on developing countries like India and increase of environmental problems like Global warming and Green-house effect with IC engine with the use of fossil fuels, the search for alternative fuels has become pertinent and necessary. Gaseous fuels have many advantages than liquid fuels, as their calorific values of fuels are high, pollutants emitted by gaseous fuels are low and less dangerous when compared with liquid fuels. The drawbacks associated with use of vegetable oils in diesel engines such as high viscosity and low volatility can be reduced to some extent by converting them into biodiesel. However, they (biodiesel) cause combustion problems in diesel engine and hence call for low heat rejection (LHR) engine, which can burn low calorific value fuel, give high heat release rate and faster rate of combustion. They are many methods to induct gaseous fuels such as port injection, carburetion technique, injection of gaseous fuel at the near end of compression stroke etc,. Investigations were carried out with biogas gas as primary fuel inducted by port injection and cottonseed biodiesel was injected into the engine in conventional manner. Particulate matter (PM), oxides of nitrogen (NOx), carbon mono oxide (CO) levels and un-burnt hydro carbons (UBHC) are the exhaust emissions from a diesel engine. They cause health hazards, once they are inhaled in. They also cause environmental effects like Green-house effect and Global Warming. Hence control of these emissions is an immediate effect and an urgent step. The pollutants of PM, NOx,CO and UBHC were

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“…After went through the experimentation of the different researchers it was cited that the performance was poor, high viscosity, low volatility ,combustion chamber deposits ,fuel system deposits. The other major draw backs that they were found decrease in brake power and increased exhaust emissions [1][2][3][4][5][6][7][8]. Fatty acids presence in the increases the exhaust emissions from the engine.…”

Section: Introductionmentioning

confidence: 99%

Performance of Semi Adiabatic DI Diesel Engine with Supercharged air using Crude Jatropha Oil

Janardhan¹,

Chowdary²

2020

IJSCE

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Vegetable oils are the only fuels, can be substituted as alternative to overcome the shortage in developing countries. Using non-edible oil like crude jatropha as alternative, waste land can be effectively cultivated and employment can be improved. Experiments were Initiated on semi adiabatic diesel engine with super charging air through the intake manifold using crude jatropha oil with varied injection pressure and varied injection timing to study the performance of the engine. Tests were also conducted using diesel fuel in diesel engine and engine with high grade heat rejection combustion chamber at recommended injection timing at 270 bTDC with super charging air using crude jatropha oil. Improvement in performance was found with super charging when comparing with natural aspiration.

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Effect of Injector Opening Pressure and Injection Timing on Exhaust Emissions and Combustion Characteristics of Rice Bran Oil in Crude Form and Biodiesel Form in Direct Injection Diesel Engine

Cited by 4 publications

References 22 publications

Reduction of Exhaust Emissions of Semi Adiabatic Diesel Engine With Alternative Fuels

Reduction of Exhaust Emissions of Semi Adiabatic Diesel Engine With Alternative Fuels

Influence of Injection Pressure on Exhaust Emissions of Insulated Diesel Engine Fueled With Biogas and Biodiesel

Performance of Semi Adiabatic DI Diesel Engine with Supercharged air using Crude Jatropha Oil

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