Top PDF PERFORMANCE AND EMISSIONS ANALYSIS OF DIESEL BLENDED WITH NAHAR BIODIESEL BY VARYING COMPRESSION RATIO OF CI ENGINE

PERFORMANCE AND EMISSIONS ANALYSIS OF DIESEL BLENDED WITH NAHAR BIODIESEL BY VARYING COMPRESSION RATIO OF CI ENGINE

PERFORMANCE AND EMISSIONS ANALYSIS OF DIESEL BLENDED WITH NAHAR BIODIESEL BY VARYING COMPRESSION RATIO OF CI ENGINE

diesel fuel with 18% concentrations of Ethyl Ester of Nahar biodiesel blended with various compression ratios. The experiment was carried out with three different compression ratios. Experimental Biodiesel was extracted from Nahar oil, 18% (B18) concentrations of oil in diesel was found to be best blend ratios from the earlier experimental study. The engine was maintained at various compression ratios i.e., 16, 17 and 18 respectively. It is found that, at compression ratios of 18:1 for B18 blended fuel (Pure Diesel 82% + Nahar Biodiesel 18%) shows better performance and lower emission level which is very close to neat diesel fuel. It is also found that the increase of compression ratios increases the Brake Thermal Efficiency and reduces Brake Specific Fuel Consumption and having lower emission without any engine in design modifications.
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PERFORMANCE CHARACTERISTICS OF CI ENGINE USING SIMAROUBA BIODIESEL WITH VARYING COMPRESSION RATIO AND INJECTION PRESSURE

PERFORMANCE CHARACTERISTICS OF CI ENGINE USING SIMAROUBA BIODIESEL WITH VARYING COMPRESSION RATIO AND INJECTION PRESSURE

At present, India is producing only 30% of the total petroleum fuels required. The remaining 70% is being imported, which costs about Rs. 80,000 crore every year. It is an astonishing fact that mixing of 5% bio-diesel fuel to the present diesel fuel is made available in our country, which can save about Rs. 4000 crore every year. It is estimated that India will be able to produce 288 metric tons of bio-diesel by the end of 2012, which will supplement 41.14% of the total demand of diesel fuel consumption in India. The planning commission of India has launched a bio-fuel project in 200 districts from 18 states in India. It has recommended two plant species, viz. Jatropha and Karanja for bio-diesel production. The recent auto fuel policy document states that bio-fuels are efficient, eco-friendly and 100% natural energy alternative to petroleum fuels [6].
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Performance analysis of CI engine using blends of Karanja biodiesel-diesel as a fuel

Performance analysis of CI engine using blends of Karanja biodiesel-diesel as a fuel

Biodiesel is an attractive fuel for diesel engines that it can be made from any vegetable oil (edible or non- edible oils), used cooking oils, animal fats as well as microalgae oils. It is a clean energy, renewable, non- toxic and sustainable alternative to petroleum based fuels, and it is able to reduce toxic emissions when is burned in a diesel engine. The interest of this alternative energy resource is that fatty ester acids, known as biodiesel, have similar characteristics of petro-diesel oil which allows its use in compression motors without any engine modification. The problem is that biodiesel has viscosities approximately twice those of conventional diesel fuels. So biodiesel esters can used directly or blended with diesel.
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AN EXPERIMENTAL INVESTIGATION ON THE PERFORMANCE, COMBUSTION AND EMISSION CHARACTERISTICS OF CI DIESEL ENGINE AT VARIOUS COMPRESSION RATIO WITH DIFFERENT ETHANOL-BIODIESEL BLENDS

AN EXPERIMENTAL INVESTIGATION ON THE PERFORMANCE, COMBUSTION AND EMISSION CHARACTERISTICS OF CI DIESEL ENGINE AT VARIOUS COMPRESSION RATIO WITH DIFFERENT ETHANOL-BIODIESEL BLENDS

The setup is instrumented for measurements of combustion pressure and crank angle. IC engine performance analysis software package named “Engine Soft” provided for online performance and combustion evaluation. The signals are interfaced with computer system through engine indicator for P-θ and P-V diagrams. PCB a piezoelectric pressure transducer is used for recording the cylinder pressure for 20 consecutive cycles for variable combustion studies. The experiments are conducted by using various proportions of ethanol and biodiesel blends like E10, E20, E30 and E40 under various compression ratios such as 17.5:1, 18.5:1 and 19.5:1 and the injection pressure used upto 255 bars. The compression ratio is varied by altering the dimensions of the piston bowl by keeping the constant standard stroke volume.
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Analysis and Optimization Of Performance Parameters of Diesel Engine Using Biodiesel

Analysis and Optimization Of Performance Parameters of Diesel Engine Using Biodiesel

Leenus Jesu Martin, Edwin Geo, Prithviraj's investigation on the viscosity of cottonseed oil, which has been considered as an alternative fuel for the compression Ignition (C.I) engine was decreased by blending with diesel. The blends of varying proportions of cottonseed oil and diesel were prepared, analyzed and compared with the performance of diesel fuel and studied using a single cylinder C.I. engine. Significant improvement in engine performance was observed compared to neat cottonseed oil as a fuel. The brake thermal efficiency, specific fuel consumption, volumetric efficiency, peak cylinder pressure, smoke, CO, HC, NO and the exhaust gas temperatures were analyzed. The tests showed increase in the brake thermal efficiencies of the engine as the amount of diesel in the blend increased. The volumetric efficiency of the engine also increased when compared with that of neat cottonseed oil and the exhaust gas temperature with the blends decreased. The smoke, CO and HC emissions of the engine ware also less with the blends. From the engine test results it has been established that 20–40% of cottonseed oil can be substituted for diesel without any engine modification as a fuel.
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An Experimental Analysis of Diesel Engine Using Biofuel at Varying Compression Ratio

An Experimental Analysis of Diesel Engine Using Biofuel at Varying Compression Ratio

Abstract - This paper presents an experimental analysis of performance and emission characteristic of diesel-biodiesel blend use in single cylinder, aspirated with varying compression ration i.e, 14,16,18. using biodiesel diesel blends i.e. B10, B20, B30, B40, B60, B80 and pure biodiesel with load variation from ano load to full load and compared with base cases i.e. engine using diesel as a fuel. The parameters which studied are in performance brake power, brake specific fuel consumption and brake thermal efficiency, in emission carbon monoxide, carbon dioxide, nitrogen oxide and unburned hydrocarbon of diesel engine. It was observed that out of three compression ratios i.e. 14, 16 and 18, compression ratio 18 results of brake thermal efficiency, brake specific fuel consumption and brake power as better results and emission for it was also lower except nitrogen oxide. In diesel-biodiesel blend , B20 having a better performance out of all combination of test fuel and emission of carbon monoxide (CO), carbon dioxide (CO2), unburned hydro carbon (HC) and oxides of nitrogen (NOx) decrease.
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Performance and Exhaust Emissions Using Blends on VCR Diesel Engine with Varying Compression Ratio of Hibiscus Oil

Performance and Exhaust Emissions Using Blends on VCR Diesel Engine with Varying Compression Ratio of Hibiscus Oil

engine and it is very difficult to control them simultaneously Petroleum based fuels is a finite resource that is rapidly depleting. Consequently, petroleum reserves are not sufficient enough to last many years. Biodiesel is one of the alternative fuel made from vegetable oil, friendly for environment and has no effect on health and can reduce the emission compared with diesel fuel. In this paper will be examined the use of diesel- hibiscus oil mixtures on (a single cylinder, direct ignition, four stroke, vertical, water cooled, naturally aspirated, variable compression ratio diesel engine). For those mixtures at B15 and B25 at compression ratios 13.5:1, 16.5:1 and 18:1 the brake thermal efficiency, mechanical efficiency and exhaust gas temperature. The gas emissions of carbon monoxide (CO), carbon dioxide (CO 2 ) and nitrogen oxide (NO X ), are being
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EXPERIMENTAL INVESTIGATION OF PERFORMANCE AND EMISSION CHARACTERSTICS OF VARIABLE COMPRESSION RATIO DI DIESEL ENGINE OPERATING ON JATROPHA BIODIESEL AND DIESEL FUEL

EXPERIMENTAL INVESTIGATION OF PERFORMANCE AND EMISSION CHARACTERSTICS OF VARIABLE COMPRESSION RATIO DI DIESEL ENGINE OPERATING ON JATROPHA BIODIESEL AND DIESEL FUEL

vegetable oil with diesel in varying proportions. However, the properties of blends may be further improved to make use of higher percentage of Jatropha oil in the blends using Jatropha oil of purer grade which may be obtained by pretreatment of the oil. Moreover, the long term durability of the engine using biodiesel as fuel Saurabh Sharma et al. (2014) Studied the “performance and emission analysis of diesel engine using biodiesel and preheating Jatropha oil”. The experimental work carried out in this study was analyzed and the results were discussed as above and the major findings are listed in this. The main objective of the experiment is to analyze the performance and emission characteristics of Jatropha oil in variable compression ratio engine. The Jatropha oil has viscosity higher than that of diesel so viscosity is reduced by blending the Jatropha biodiesel with diesel or preheating the Jatropha oil, viscosity of Jatropha blends up to the D40 is found close to that of diesel. The results shows that engine performance when fueled with the biodiesel are comparable to that when fueled with petroleum diesel. CO, CO 2 .and HC emission for the biodiesel blends and preheated biodiesel is lower than that
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PERFORMANCE AND EMISSIONS ANALYSIS OF A DIESEL ENGINE USING THUMBA OIL BIODIESEL

PERFORMANCE AND EMISSIONS ANALYSIS OF A DIESEL ENGINE USING THUMBA OIL BIODIESEL

Experiment has been performed at Delhi Technical University, New Delhi India. The setup consists of a cylinder, 4 strokes, and VCR (Variable Compression Ratio) Diesel engine connected to the dynamometer for loading which eddy current type. By the special designed arrangement ‗tilting cylinder block‘ the compression ratio of the engine can be changed without stopping the engine and also without changing the combustion chamber geometry. Setup is attached with a piezo sensor angle encoder instruments for combustion pressure and crank-angle measurements. These signals are interfaced to the computer through engine indicator for obtaining PƟ−PV diagrams. . Figure 3 shows the experimental set up.
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PERFORMANCE AND EMISSION CHARACTERISTICS OF A DIESEL ENGINE OPERATING DIESEL-BIODIESEL & BIO-ETHANOL BLEND WITH EGR

PERFORMANCE AND EMISSION CHARACTERISTICS OF A DIESEL ENGINE OPERATING DIESEL-BIODIESEL & BIO-ETHANOL BLEND WITH EGR

recirculation (EGR) is an effective method to reduce NOx from biodiesel fuelled engines because it lowers the flame temperature and the oxygen concentration in the combustion chamber. However, EGR results in higher smoke opacity .The objective of current research work are to investigate the usage of biodiesel, Ethanol and EGR simultaneously in order to reduce the emissions of all regulated pollutants from diesel engine. A single cylinder, air-cooled, constant speed direct injection small capacity diesel engine was used for the experimental work. Ethanol is an oxygenated fuel and lead to smooth and efficient combustion. Atomization of ethanol results in lower combustion temperature. In this study an EGR system was developed and used for experimentation. Ethanol was added in a fixed proportion as suggested by most of the researcher in the field which is 20% the quantity and Jatropha biodiesel in the blend varied from 10, 20 up to maximum 30% and EGR was implemented from 10%, 15% and 20%. From the experimental work, it can be concluded that addition of ethanol and biodiesel along with EGR gives better performance and comparable results among all E15B20 (EGR15%) is turn out to be the best combination in most of the parameters.
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Performance and Emission Characteristics of Candlenut and Soapnut Biofuels

Performance and Emission Characteristics of Candlenut and Soapnut Biofuels

Abstract: There is a need to find out an alternate fuel rather than fossil fuel which are depleting in very faster rate and to meet the power crisis in the planet .For the bio diesel production, we can exploit in a long list of trees, shrubs and herbs. In such a way, the mixture of the bio diesels such as candlenut seed and soap nut oil which is used as a fuel for diesel engines. It is significantly comparable to pure diesel in which the results are obtained. So that, it has been experimentally investigated in the influences of blends on break power, consumption of specific fuel, exhaust temperatures, brake thermo efficiency and air gasoline ratio and it was compared with mineral diesels. The comparable fuel properties from bio diesel such as candlenut and soapnut oil with the diesel. With suitable blends the work is transported to find the discharge aspect of biodiesel.
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Developmental Trends of Sustainable Bioenergy Systems at TMU Laboratories

Developmental Trends of Sustainable Bioenergy Systems at TMU Laboratories

One of the key elements in biodiesel fuel production is biodiesel processor systems and biorefineries. A bio- refinery in production of biofuels plays similar role and functions as petroleum refinery in the case of petroleum products. Therefore, it was decided to investigate the biodiesel production technologies which start from the grass root aiming at obtaining knowhow and making the technology suitable for local and indigenous conditions. The R & D was therefore started at laboratory scale, Fig- ure 2 [45,48]. One of the main objectives was to plan for technology innovation from laboratory scale biodiesel processor to semi-industrial scale and then scaling up so that the design parameters could be obtained [46,47].
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Variable Compression Ratio Diesel Engine Performance
Analysis

Variable Compression Ratio Diesel Engine Performance Analysis

ABSTRACT:-Variable Compression Ratio (V.C.R) engine test rig can be used to determine the effect of Compression Ratio (C.R) on the performance and emissions of the engine. The combustion phenomena, when provided with a pressure transducer. The performance frequency parameters like efficiencies, power adopted, and specific fuel consumption are determined. Further, combustion phenomenon is also observed through this work, we can find the optimum compression ratio for which the best performance is possible. In order to find out optimum compression ratio, experiments were carried out on a single cylinder four stroke variable compression ratio diesel engine. Tests were carried out at compression ratios of 16.5, 17.0, 17.5, 18.0 and 19.0 at different loads the performance characteristics of engine like Brake power (BP), Brake Thermal Efficiency (BTE), Brake Specific Fuel Consumption (BSFC). Results show a significant improved performance at a compression ratio 19.0. The compression ratios lesser than 19.0 showed a drop in break thermal efficiency, rise in fuel consumption.
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Experimental Investigation of Performance & Emission Characteristics of 4 Stroke Single Cylinder CI Engine by using Palm Oil Biodiesel with Magnetic Energizer: A Review

Experimental Investigation of Performance & Emission Characteristics of 4 Stroke Single Cylinder CI Engine by using Palm Oil Biodiesel with Magnetic Energizer: A Review

Biodiesel is an elective fuel like regular or 'fossil' diesel. Biodiesel can be delivered from straight vegetable oil, creature oil/fats, fat and waste cooking oil. The procedure used to change over these oils to Biodiesel is called transesterification. The biggest conceivable wellspring of reasonable oil originates from oil yields, for example, rapeseed, palm or soybean. In the UK rapeseed speaks to the best potential for biodiesel creation. Most biodiesel created at present is delivered from squander vegetable oil sourced from eateries, chip shops, mechanical nourishment makers, for example, Birdseye and so on. In spite of the fact that oil directly from the farming business speaks to the best potential source it isn't being created economically essentially on the grounds that the crude oil is excessively costly. After the expense of changing over it to biodiesel has been included it is just too costly to even think about competing with fossil diesel. Squander vegetable oil can frequently be sourced for nothing or sourced effectively treated at a little cost. (The waste oil must be treated before change to biodiesel to expel debasements). The outcome is Biodiesel created from squander vegetable oil can rival fossil diesel.
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Performance and emissions of preheated biodiesel on a compression ignition (CI) engines

Performance and emissions of preheated biodiesel on a compression ignition (CI) engines

The highest NO, emission takes place at 2000 rpm engine speed unexpectedly for both load conditions and the preheat B5 produced higher NOx compared to diesel fuel and unheated B5.. In ad[r]

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Engine Performance and Emissions with Ethanol and Diesel Biodiesel Blends

Engine Performance and Emissions with Ethanol and Diesel Biodiesel Blends

Combustion analysis results such as cylinder pressure versus crank angle are shown in Figure 5. Maximum cylinder pressure decreases with the blends and decreases further with ETN. It can also be seen that the addition of cetane improver causes the cylinder pressure traces of the blends shift toward BDC by some crank angle degrees when compared to diesel which demonstrates that they ignite earlier than diesel and finish the combustion earlier than diesel and also different pressure traces for different blends before TDC. This may be attributed to the addition of ETN which decreases ignition delay and reduces the accumulation of unburned fuel in the premixed phase of combustion which results in reduction in cylinder pressure and delay period, these results also coincide with the results presented.
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Comparative Study of Performance and Exhaust Emissions of a Diesel Engine Fueled with Algal, Used Cooked and Jatropha Oils Biodiesel Mixtures

Comparative Study of Performance and Exhaust Emissions of a Diesel Engine Fueled with Algal, Used Cooked and Jatropha Oils Biodiesel Mixtures

Abstract-- The continuous increase in energy demand, consumption of fossil fuels, exhaust emissions and global warming, all these led to search for alternative fuels. Biodiesel was produced from different feedstocks such as algae, used cooked oil and Jatropha oils by transesterification process. Biodiesel blends of 10 and 20% volume percentages from different feedstocks were prepared. Physical and chemical properties of biodiesel blends of B10 and B20 were close to diesel oil. These experimental tests were run on a diesel engine at different engine loads from zero to full load. Performance and exhaust emissions of a diesel engine burning blends of biodiesel and diesel fuels were studied.Biodiesel blends achieved increases in exhaust gas temperatures and specific fuel consumptions and decreases in thermal efficiencies compared to diesel fuel. Reductions in CO, NO x and smoke emissions for
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EXPERIMENTAL ANALYSIS AND MODELLING OF A FOUR STROKE SINGLE CYLINDER DI DIESEL ENGINE UNDER VARIABLE COMPRESSION RATIO

EXPERIMENTAL ANALYSIS AND MODELLING OF A FOUR STROKE SINGLE CYLINDER DI DIESEL ENGINE UNDER VARIABLE COMPRESSION RATIO

Heat Release Rate is measure of how fast chemical energy of fuel is converted into the thermal energy by combustion. This directly affects rate of pressure rise and accordingly the power produced. When the fuel is injected into the cylinder, some of it vaporizes and mixes with air to form a combustible mixture which auto- ignites due to the high temperature. Because of the high temperature, the portion of the fuel, this vaporized and mixed with air burns very rapidly. This initial burning of the fuel–air mixture is called the premixed burning phase. The heat release rate is used to identify the start of combustion, the fraction of fuel burned in the premixed mode, and differences in combustion rates of fuels. One of the important parameter in the combustion phenomenon is the ignition delay. The definition of the ignition delay is the time lag between the start of fuel injection to the start of combustion. This can be easily seen in the figure 5 the peak for different compression ratios continuously moves to the right. As the compression ratio is reduced ignition lag also increases leading to late heat release. The amount of heat released changes for different compression ratios. Incomplete combustion at different compression ratio is main reason for the different values of HRR at different compression ratio. Maximum HRR obtained is 60.19 J/Deg at CR 18 while Minimum HRR is 54.32 J/Deg at CR 14.
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Evaluation of diesel engine performance and emissions using blended biodiesel (waste chicken fat) and conventional diesel

Evaluation of diesel engine performance and emissions using blended biodiesel (waste chicken fat) and conventional diesel

xii 3.3 Measuring The Diameter of Macro Porous Ceramic Material Using 27 Digital Vernier Caliper 3.4 Measuring The Height of Macro Porous Ceramic Material Using 27 Digital Vernier Calipe[r]

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Applied Ecology and Environmental Sciences

Applied Ecology and Environmental Sciences

The EGT variation is portrayed in Figure 8. The EGT for all the four fuels increases on increasing the load. The EGT for all the three biodiesels is less than the pure diesel. This happens because the biodiesel has a high viscosity and exhibits poor combustion [11]. The values of the EGT at maximum load for D 100 , J20, M20 and K20 are 455, 425,

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