scholarly journals Effect of Diesel Fuel-Coconut Oil-Butanol Blends on Operational Parameters of Diesel Engine

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3796
Author(s):  
Jakub Čedík ◽  
Martin Pexa ◽  
Michal Holúbek ◽  
Zdeněk Aleš ◽  
Radek Pražan ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Vegetable Oils ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Alternative Fuels ◽  
Coconut Oil ◽  
Solid Particles ◽  
Operational Parameters ◽  
Fuel Blends ◽  
Local Product

The global concentration of greenhouse gasses in the atmosphere is increasing as well as the emissions of harmful pollutants. Utilization of liquid biofuels in combustion engines helps to reduce these negative effects. For diesel engines, the most common alternative fuels are based on vegetable oils. Blending neat vegetable oils with diesel and/or alcohol fuels is a simple way to make them suitable for diesel engines. In this study, coconut oil was used in ternary fuel blends with diesel and butanol. Coconut oil is a potentially usable source of renewable energy, especially in the Pacific, where it is a local product. Diesel fuel-coconut oil-butanol fuel blends were used in concentrations of 70%/20%/10% and 60%/20%/20%, and 100% diesel fuel was used as a reference. The effect of the fuel blends on the production of harmful emissions, engine smoke, performance parameters, fuel consumption and solid particles production was monitored during the measurement. The engine was kept at a constant speed during the measurement and the load was selected at 50%, 75% and 100%. From the results, it can be stated that in comparison with diesel fuel, specific fuel consumption increased with a positive effect on the reduction of engine smoke.

Enhancing Diesel Engine Performance and Reducing Emissions Using Binary Biodiesel Fuel Blend

2019 ◽  
Vol 142 (1) ◽  
Author(s):  
Paramvir Singh ◽  
S. R. Chauhan ◽  
Varun Goel ◽  
Ashwani K. Gupta
Keyword(s):  
Fuel Consumption ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Transport Sector ◽  
Biodiesel Fuel ◽  
Injection Timing ◽  
Fuel Blend ◽  
Fuel Blends ◽  
Fuel Mixing ◽  
Ci Engines

Fossil fuel consumption provides a negative impact on the human health and environment in parallel with the decreased availability of this valuable natural resource for the future generations to use as a source of chemical energy for all applications in energy, power, and propulsion. The diesel fuel consumption in the transport sector is higher than the gasoline in most developing countries for reasons of cost and economy. Biodiesel fuel offers a good replacement for diesel fuel in compression ignition (CI) diesel engines. Earlier investigations by the authors revealed that a blend of 70% amla seed oil biodiesel and 30% eucalyptus oil (AB70EU30) is the favorable alternative renewable fuel blend that can be used as a fuel in diesel engines. With any fuel, air/fuel mixing and mixture preparation impact efficiency, emissions, and performance in CI engines. Minor adjustments in engine parameters to improve air/fuel mixing and combustion are deployable approaches to achieve good performance with alternative fuel blends in CI engines. This paper provides the role of a minor modification to engine parameters (compression ratio, injection timing, and injection pressure) on improved performance using the above mixture of binary fuel blends (AB70EU30). The results showed that the use of AB70EU30 in modified engine resulted in higher brake thermal efficiency and lower brake specific fuel consumption compared to normal diesel for improved combustion that also resulted in very low tailpipe emissions.

scholarly journals Combustion characteristics of compression ignition engine fuelled with rapeseed oil–diesel fuel–n-butanol blends

2021 ◽  
Vol 76 ◽  
pp. 17
Author(s):  
Jakub Čedík ◽  
Martin Pexa ◽  
Bohuslav Peterka ◽  
Miroslav Müller ◽  
Michal Holubek ◽  
...  
Keyword(s):  
Vegetable Oils ◽  
Diesel Fuel ◽  
Rapeseed Oil ◽  
Direct Injection ◽  
Combustion Characteristics ◽  
Solid Particles ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Fuel Blend ◽  
Fuel Blends

Liquid biofuels for compression ignition engines are often based on vegetable oils. In order to be used in compression ignition engine the vegetable oils have to be processed because of their high viscosity or it is also possible to use vegetable oils in fuel blends. In order to decrease the viscosity of the fuel blends containing crude vegetable oil the alcohol-based fuel admixtures can be used. The paper describes the effect of rapeseed oil–diesel fuel–n-butanol blends on combustion characteristics and solid particles production of turbocharged compression ignition engine. The 10% and 20% concentrations of n-butanol in the fuel blend were measured and analysed. The engine Zetor 1204, located in tractor Zetor Forterra 8641 with the power of 60kW and direct injection was used for the measurement. The engine was loaded through power take off shaft of the tractor using mobile dynamometer MAHA ZW500. The measurement was carried out in stabilized conditions at 20%, 60% and 100% engine load. The engine speed was kept at 1950 rpm. Tested fuel blends showed lower production of solid particles than diesel fuel and lower peak cylinder pressure and with increasing concentration of n-butanol in the fuel blend the ignition delay was prolonged and premixed phase of combustion was increased.

scholarly journals Using Mustard Oil As an Ecological Additive to Petroleum Diesel Fuel

2016 ◽  
Vol 5 (5) ◽  
pp. 8-21
Author(s):  
Неверова ◽  
V. Neverova ◽  
Марков ◽  
V. Markov ◽  
Бовэнь ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Vegetable Oils ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Alternative Fuels ◽  
Internal Combustion Engines ◽  
Raw Materials ◽  
Mustard Oil ◽  
Animal Fats ◽  
Alternative Sources

The depletion of oil fields and the deteriorating environmental situation leads to the need for the search of new alternative sources of energy. Actuality of the article due to the need for greater use of the alternative fuels in internal combustion engines is necessary. Fuels produced from vegetable oils and animal fats as advanced alternative fuels for diesel engines are considered. These fuels are produced from renewable raw materials and are characterized by good environmental qualities. Advantages of using fuels of vegetable origin as motor fuels are shown. Experimental research of diesel engine D-245.12S functioning on mixtures of diesel fuel and mustard oil of various percentage is given. One of the most wide spread vegetable oils in Russia is mustard oil. Possible ways of using mustard oil as fuel for a diesel engine are considered. An opportunity of improving characteristics of exhaust gases toxicity by using these mixtures as a fuel for automobile and tractor diesel engines is demonstrated.

scholarly journals The Performance of A Diesel Engine Fueled With Diesel Oil, Biodiesel and Preheated Coconut Oil

2017 ◽  
Vol 6 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Tuan Anh Hoang ◽  
Vang Van Le
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Vegetable Oils ◽  
Thermal Efficiency ◽  
Alternative Fuels ◽  
Engine Performance ◽  
Coconut Oil ◽  
Diesel Oil ◽  
Specific Fuel Consumption ◽  
Jatropha Oil

Fossil fuel crisis and depletion, environmental pollution and ever-increase in vehicle and transportation means have renewed the scientist’s interest in the world in order to look for potential alternative fuels, which are attractive such as biodiesel, bioethanol, DME and vegetable oils. Inedible vegetable oils such as coconut oil, Jatropha oil, linseed oil or animal fat are full of potential for using directly or manufacturing biodiesel. This work is carried out in order to study the four stroke diesel engine D240 performance characteristics fueled with preheated pure coconut oil (PCO), Jatropha oil methyl ester (JOME) and compare with diesel oil (DO). The test diesel engine performance such as power (Ne), torque (Me), specific fuel consumption (ge) and thermal efficiency (ηe) is determined, calculated and evaluated while using JOME, preheated PCO and compared to DO. The results show that, power (Ne), torque (Me) and thermal efficiency (ηe) while engine is fueled with JOME and PCO are lower, otherwise specific fuel consumption (ge) is higher than those of diesel fuel, the test engine performance are gained the best for JOME and PCO100.Article History: Received Dec 9, 2016; Received in revised form January 28, 2017; Accepted February 4, 2017; Available onlineHow to Cite This Article: Hoang, T.A and Le,V. V. (2017). The Performance of A Diesel Engine Fueled With Diesel Oil, Biodiesel and Preheated Coconut Oil. International Journal of Renewable Energy Development, 6(1), 1-7.http://dx.doi.org/10.14710/ijred.6.1.1-7

scholarly journals SCIENTIFIC PRINCIPLES OF INCREASING THE EFFICIENT PERFORMANCE OF DIESELS WHEN USING BIOFUELS

2021 ◽  
pp. 15-25
Author(s):  
V.M. Bgantsev
Keyword(s):  
Vegetable Oils ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Alternative Fuels ◽  
Raw Materials ◽  
Experimental Studies ◽  
Developed Countries ◽  
Ethyl Esters ◽  
Mineral Fuel ◽  
Biodiesel Fuels

The use of biological fuels based on vegetable oils and other similar raw materials in diesel engines in developed countries can reduce the cost of mineral diesel fuel and improve the environment. This issue is relevant for Ukraine as well, in connection with which the governing bodies pay great attention to it. The deepening of knowledge in the study of the peculiarities of the flow of operating cycles of diesel engines, their power and toxic characteristics at the same time contributes to the optimization of the use of these types of fuel. In this work, the main issues related to the use of vegetable oils, such as sunflower, rapeseed, corn oils and their ethyl esters, both in pure form and in a mixture with mineral diesel fuel, are considered as a biological component of fuel. Theoretical issues and experimental data related to the use of these fuels in diesel engines are considered. Experimental studies were carried out on diesel engines D21A and four-cylinder - Skoda - an analogue of the 1.9-liter Volkswagen engine with turbocharging. Economic and toxic characteristics were obtained by load and speed characteristics. There is an increase in the consumption of mixed fuel in comparison with mineral fuel, the toxic characteristics were better in some indicators, in some cases, for example, when operating at increased capacities, they worsened relative to those when operating on mineral fuel. The basic principles of the effective use of biofuels in transport diesel engines are formulated in terms of energy and toxic indicators, as well as the corrosive effect of blended biofuels on fuel equipment. Today, gas stations in Ukraine only sell alternative fuels for gasoline engines. These are mixtures in various proportions of gasoline and bioethanol with a content of the latter up to 35–40% by volume. The price of such fuel is lower than the price of gasoline. Biodiesel fuels are not commercially available, although they would also cost less than mineral diesel fuel. It is likely that the use of biodiesel fuels is restrained due to the need to adapt the diesel engine to these fuels and to monitor the state of the fuel equipment. However, these costs are small and can be easily compensated for by the difference in the price of mineral and biodiesel fuels. It can be assumed that, first of all, biodiesel will be introduced into agricultural machinery.

scholarly journals Effect of butanol on fuel consumption and smoke emission of direct injection diesel engine fueled by jatropha oil and diesel fuel blends with cold EGR system

2018 ◽  
Vol 49 ◽  
pp. 02010
Author(s):  
Syarifudin ◽  
Syaiful ◽  
Eflita Yohana
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Direct Injection ◽  
Jatropha Oil ◽  
Fuel Blend ◽  
Direct Injection Diesel Engine

Diesel engines are widely used in industry, automotive, power generation due to better reliability and higher efficiency. However, diesel engines produce high smoke emissions. The main problem of diesel engine is actually the use of fossil fuels as a source of energy whose availability is diminishing. Therefore alternative fuels for diesel fuels such as jatropha and butanol are needed to reduce dependence on fossil fuels. In this study, the effect of butanol usage on fuel consumption and smoke emissions of direct injection diesel engine fueled by jatropha oil and diesel fuel with cold EGR system was investigated. The percentage of butanol was in the range of 5 to 15%, jatropha oil was in the range of 10 to 30% and the balance was diesel fuel. Cold EGR was varied through valve openings from 0 to 100% with 25% intervals. The experimental data shows that the BSFC value increases with increasing percentage of butanol. In addition, the use of EGR results in a higher increase of BSFC than that without EGR. While the addition of butanol into a blend of jatropha oil and diesel fuel causes a decrease in smoke emissions. The results also informed that the use of EGR in the same fuel blend led to increased smoke emissions.

Effects of triglyceride gasoline blends on combustion and emissions in a common rail direct injection diesel engine

2017 ◽  
Vol 19 (10) ◽  
pp. 1068-1078 ◽  
Author(s):  
Arunachalam Lakshminarayanan ◽  
Daniel B Olsen ◽  
Perry E Cabot
Keyword(s):  
Fuel Consumption ◽  
Vegetable Oils ◽  
Diesel Engines ◽  
Alternative Fuels ◽  
Direct Injection ◽  
Pollutant Emissions ◽  
Compression Ignition Engine ◽  
Unleaded Gasoline ◽  
Particulate Matter Emissions ◽  
Volume Measurements

This study presents the combustion and emission results using a blend of unrefined triglycerides (straight vegetable oils) and regular unleaded gasoline in a compression ignition engine typically used in farming machinery. Most farm equipment is powered by diesel engines. A sizable cost of producing a crop on a farm can be attributed to fuel—diesel in such cases. Farmers and researchers have been interested in the use of alternative fuels, especially triglycerides, which could potentially bring down the fuel cost portion of the farm input costs. One of the major drawbacks of using unrefined triglycerides is poor cold flow properties due to high density and viscosity. To overcome this, the triglycerides can be blended with gasoline to lower the density and viscosity. This blend has been used in existing diesel engines without the need for any modification to the engine or its control system. The experiments were conducted on a 4.5-L Tier 3 engine. The fuel used was a blend of unrefined canola triglyceride and regular unleaded gasoline (10% by volume). Measurements include mass fraction burned combustion pressure, fuel consumption and pollutant emissions. The fuel consumption of TGB10 was lower than most straight vegetable oils found in the literature, but higher than diesel. The peak pressure of TGB10 was slightly higher than diesel and occurred earlier than diesel. The brake-specific NOx was lower than diesel at lower and no load points. Particulate matter emissions of TGB10 were higher than diesel at rated speed. Total hydrocarbon emissions were generally higher than diesel. CO emissions were lower than diesel except at low or no load points where they were significantly higher.

scholarly journals Quantification of Execution and Emission Efficiency of a Fuelled Diesel Engine with Biodiesel

2020 ◽  
Vol 7 (1) ◽  
pp. G15-G20
Author(s):  
S. Nagendra ◽  
B. Santosh Kumar ◽  
A. V. N. S. Kiran ◽  
C. Ramanjaneyalu ◽  
K. Nagamani
Keyword(s):  
Diesel Engine ◽  
Vegetable Oils ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Alternative Fuels ◽  
Cottonseed Oil ◽  
Industrial Sector ◽  
Industrial Growth ◽  
Performance And Emission ◽  
And Shifts

A significant portion of the automobile and industrial sector is mostly dependent on the running of diesel engines as it is efficient and shifts a large of the goods around the globe and power various equipment. Also, as the use of energy as diesel fuel is increasing enormously with the expansion of industrial growth, diversification, this led to the accelerating global emissions, global climatic change, health issues, and exhaustion of fuels. To succumb this, alternative fuel is needed to fight against the ill effects and as a replacement to diesel fuel. Thus, vegetable oils as alternative fuels are drawing more attention as they are renewable and do not address the problem of greenhouse gas. In the present work, the cottonseed oil was chosen as the favorite among the vegetable oils due to its advantages like less pollutant level, excessive availability, etc. The transesterification process was used to produce the cottonseed oil biodiesel. This research aims to investigate efficiency, emission characteristics by using smooth diesel, cottonseed oil, and mixtures with varying composition from 20 % to 80 % in 20 % steps to identify sustainable fuel as a substitute for existing fuel and to overcome fuel demand and enviro effects. This test was conducted on single-cylinder four-stroke water-cooled diesel engines. From the results, it was revealed that cottonseed oil and its blends have a significant influence on performance and emission characters. Keywords: water-cooled diesel engine, emission character, cottonseed oil, sustainable fuel.

STUDYING OF THE EFFECT OF WATER-FUEL MIXTURE ON OPERATIONAL PARAMETERS OF A DIESEL

2021 ◽  
Vol 2 (143) ◽  
pp. 54-61
Author(s):  
Sergey V. Borisov ◽  
◽  
Aleksandr E. Lomovskikh ◽  
Oleg E. Prilepin ◽  
Timur R. Mamatkazin ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Aqueous Dispersion ◽  
Fuel Mixture ◽  
Research Purpose ◽  
Regression Equations ◽  
Operational Parameters ◽  
Rough Water ◽  
Minimum Number

Improving the parameters of diesel engines is an urgent task. Work has been carried out to significantly reduce the consumption of their fuel with the introduction of water dispersions into the fuel. Currently, water-fuel emulsions with exotic emulsifiers are mainly tested. (Research purpose) The research purpose is in creation of a water-fuel emulsion without an emulsifier with a simple installation and identifying the influence of the composition and quality of this WFE on the performance of the YaMZ-236 diesel engine. (Materials and methods) The article presents a plant for the preparation of a "rough" water- fuel mixture from diesel fuel according to GOST 32511-2013 and distilled water according to GOST 6709. Authors conducted standard bench tests at the KI-5540- GOSNITI stand with a YaMZ-236 diesel engine with an upgraded fuel system and performed the control of the smoke content of the exhaust gases with the gas analyzer "AUTOTEST". The dependence of diesel performance indicators on the composition and dispersion of water-fuel emulsions without an emulsifier was studied experimentally with a minimum number of tests, but with the maximum possible combination of the values of three variable factors. (Results and discussion) The influence of various water-fuel emulsions on the performance of the diesel engine was evaluated according to the plan of a full factor experiment, including 20 tests. The second-order regression equations were obtained by mathematical processing of the test results. The feasibility of using water-fuel emulsions for diesel engines was confirmed. By modeling a water-fuel mixture without emulsifiers, there was created an aqueous dispersion with drops up to two micrometers. In the load tests of the diesel engine with it, there was noticed an improvement in its performance. (Conclusions) The introduction of 17-20 percent water dispersion with drops of up to two micrometers into diesel fuel reduced the specific fuel consumption by 18 percent, the smokiness in the K indicator by 20- 22, and in the N indicator by 30-35 percent.

scholarly journals The Performance of Diesel Engine Fueled Diesel Oil in Comparison with Heated Pure Vegetable Oils Available in Vietnam

2017 ◽  
Vol 10 (2) ◽  
pp. 93 ◽  
Author(s):  
Anh Tuan Hoang
Keyword(s):  
Diesel Engine ◽  
Vegetable Oils ◽  
Sunflower Oil ◽  
Alternative Fuels ◽  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Coconut Oil ◽  
Diesel Oil ◽  
Petroleum Resources ◽  
Ready Availability

Pure vegetable oils have the greatest promise for alternative fuels for internal combustion engines beside the depletion of conventional petroleum resources. Among various possible options, pure vegetable oils present promising of greener air substitutes for fossil fuels. Pure vegetable oils, due to the agricultural origin, liquidity, ready availability, renewability, biodegradability are able to reduce the CO2 emissions in the atmosphere. Also, in Vietnam, pure vegetable oils such as soybean oil (SoO100), coconut oil (CO100) and sunflower oil (SuO100) are available. The paper presents the results of using heated pure vegetable oils for diesel engine D243 with power of 80 hp (58.88) kW. The results of determining the power (Ne), specific fuel consumption (SFC) and efficiency (n) are used to evaluate the performance of engine. The results show that, the engine power (Ne) is 10%-15% lower, the SFC of engine D243 using pure vegetable oils is 3%-5% higher and the η is 2.5%-6.2% lower compared to diesel oil (DO). Among the pure vegetable oils, the best performance results for D243 diesel engine are obtained from heated pure sunflower oil up to 135oC.

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