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Author: P. Venkateswara Rao
Publisher:
ISBN: 9782522248054
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
A single cylinder diesel engine is an internal combustion engine where fuel is ignited by compressing air in a combustion chamber. In recent years, there has been growing interest in using alternative fuels in diesel engines to reduce environmental impact and promote sustainability. One such alternative fuel is coconut biodiesel, which is derived from coconut oil and has been found to have good combustion properties. To enhance the performance and reduce the emissions of coconut biodiesel, researchers have explored the use of fuel additives. These additives can improve the properties of the fuel and enhance its combustion characteristics. The use of additive blends with coconut biodiesel has shown promise in reducing emissions and improving engine performance. Studies have investigated the effects of using different types and concentrations of additives in coconut biodiesel blends, such as antioxidants, surfactants, and cetane improvers. These studies have shown that the use of additive blends can reduce emissions of pollutants such as nitrogen oxides (NOx), carbon monoxide (CO), and particulate matter (PM), while also improving engine power and efficiency. The use of coconut biodiesel and additive blends in diesel engines has several advantages, including the use of a renewable and locally sourced fuel source, reduced emissions of harmful pollutants, and improved engine performance. However, further research is needed to optimize the use of these fuels in diesel engines and ensure their long-term viability and sustainability. Overall, the use of single cylinder diesel engines with coconut biodiesel and additive blends shows promise as a more sustainable and environmentally friendly alternative to traditional diesel fuels. Particulate matter (PM) or smoke emission and oxides of nitrogen (NOx emissions) are the two important harmful emissions in diesel engine. Fuel companies and the researchers around the world are devoted to reduce such emissions with different ways. Fuel modification, modification of combustion chamber design and exhaust after treatments are the important means to alleviate such emissions. In this context, engine researchers are hunting for suitable alternative fuels to the diesel engine. Among different alternative fuels, oxygenated fuel is a kind of alternative fuel. Diethylene glycol dimethyl ether (DGM), dimethoxy methane (DMM), dimethyl ether (DME), diethyl ether (DEE), methyl tertiary butyl ether (MTBE), dibutyl ether (DBE), dimethyl carbonate (DMC), methanol, ethanol and Triacetin (anti-knocking agent for gasoline) have played their role to reduce diesel emissions. These fuels can either be used as a blend with conventional diesel/biodiesel fuel or as an additive or as a neat fuel. The presence of oxygen in the fuel molecular structure plays an important role to reduce PM and other harmful emissions from diesel engine.
Author: P. Venkateswara Rao
Publisher:
ISBN: 9782522248054
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
A single cylinder diesel engine is an internal combustion engine where fuel is ignited by compressing air in a combustion chamber. In recent years, there has been growing interest in using alternative fuels in diesel engines to reduce environmental impact and promote sustainability. One such alternative fuel is coconut biodiesel, which is derived from coconut oil and has been found to have good combustion properties. To enhance the performance and reduce the emissions of coconut biodiesel, researchers have explored the use of fuel additives. These additives can improve the properties of the fuel and enhance its combustion characteristics. The use of additive blends with coconut biodiesel has shown promise in reducing emissions and improving engine performance. Studies have investigated the effects of using different types and concentrations of additives in coconut biodiesel blends, such as antioxidants, surfactants, and cetane improvers. These studies have shown that the use of additive blends can reduce emissions of pollutants such as nitrogen oxides (NOx), carbon monoxide (CO), and particulate matter (PM), while also improving engine power and efficiency. The use of coconut biodiesel and additive blends in diesel engines has several advantages, including the use of a renewable and locally sourced fuel source, reduced emissions of harmful pollutants, and improved engine performance. However, further research is needed to optimize the use of these fuels in diesel engines and ensure their long-term viability and sustainability. Overall, the use of single cylinder diesel engines with coconut biodiesel and additive blends shows promise as a more sustainable and environmentally friendly alternative to traditional diesel fuels. Particulate matter (PM) or smoke emission and oxides of nitrogen (NOx emissions) are the two important harmful emissions in diesel engine. Fuel companies and the researchers around the world are devoted to reduce such emissions with different ways. Fuel modification, modification of combustion chamber design and exhaust after treatments are the important means to alleviate such emissions. In this context, engine researchers are hunting for suitable alternative fuels to the diesel engine. Among different alternative fuels, oxygenated fuel is a kind of alternative fuel. Diethylene glycol dimethyl ether (DGM), dimethoxy methane (DMM), dimethyl ether (DME), diethyl ether (DEE), methyl tertiary butyl ether (MTBE), dibutyl ether (DBE), dimethyl carbonate (DMC), methanol, ethanol and Triacetin (anti-knocking agent for gasoline) have played their role to reduce diesel emissions. These fuels can either be used as a blend with conventional diesel/biodiesel fuel or as an additive or as a neat fuel. The presence of oxygen in the fuel molecular structure plays an important role to reduce PM and other harmful emissions from diesel engine.
Author: Basava Venkata Appa Rao
Publisher:
ISBN: 9783656744962
Category :
Languages : de
Pages : 70
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Book Description
Doctoral Thesis / Dissertation from the year 2010 in the subject Engineering - Power Engineering, Andhra University (AU College of Engineering), course: Mechanical, language: English, comment: Best Researcher awarde and Senior Professor, abstract: Diesel engine emits more pollutants which are detrimental to the human health. Pollution control boards around the world made it mandatory to reduce the tail pipe emissions. Research on emission control is in full swing and several alternative fuels have been tested to reduce emissions. Especially cold combustion in diesel engines is in focus. Low temperature combustion is contemplated to reduce some of the dangerous emissions like NOx. Biodiesel fuel reduces most of the pollutants except NOx. Hence testing with higher latent heat alcohols as secondary fuels in dual fuel injection strategy is mooted. Fumigation of alcohol is one of the techniques to induct alcohols in suction side along with the incoming air. Carburetion and real time injection were also tested but there is certain amount design change of the engine is needed with the implementation of these new techniques. In this thesis, major design changes are not contemplated and introduction of smaller retrofits is mooted. And among the alcohols, methyl alcohol is tested along with biodiesel in the dual fuel operation. Even in the selection of biodiesel, priority has been given to Coconut biodiesel (COME) since it is more saturated ester than the esters in fray. One can observe ubiquitous coconut plantation in the urban side as well as in the rural side in India. COME is injected through the conventional nozzle and a separate electronic injector is used as retrofit to inject methanol at the suction end after the complete opening of the suction valve. Methanol is quantified with respect to the 1kg/hr ester and corresponding gravimetric percentages have been calculated. 3%, 5%, 7%, 10% of gravimetric proportions have been maintained for the injection of methyl alcoh
Author: A. M. Liaquat
Publisher:
ISBN:
Category : Biodiesel fuels
Languages : en
Pages :
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Book Description
Author: Soo-Young No
Publisher: Springer Nature
ISBN: 981136737X
Category : Technology & Engineering
Languages : en
Pages : 480
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Book Description
This book provides a comprehensive overview of the application of liquid biofuels to internal combustion (IC) engines. Biofuels are one of the most promising renewable and sustainable energy sources. Particularly, liquid biofuels obtained from biomass could become a valid alternative to the use of fossil fuels in the light of increasingly stringent environmental constraints. In this book, the discussion is limited to liquid biofuels obtained from triglycerides and lignocellulose among the many different kinds of biomass. Several liquid biofuels from triglycerides, straight vegetable oil, biodiesel produced from inedible vegetable oil, hydrotreated vegetable oil, and pyrolytic oil have been selected for discussion, as well as biofuels from lignocellulose bio-oil, alcohols such as methanol, ethanol and butanol, and biomass-to-liquids diesel. This book includes three chapters on the application of methanol, ethanol and butanol to advanced compression ignition (CI) engines such as LTC, HCCI, RCCI and DF modes. Further, the application of other higher alcohols and other drop-in fuels such as DMF, MF, MTHF, and GVL are also discussed. The book will be a valuable resource for graduate students, researchers and engine designers who are interested in the application of alcohols and other biofuels in advanced CI engines, and also useful for alternative energy planners selecting biofuels for CI engines in the future.
Author: Niraj Kumar
Publisher: Elsevier
ISBN: 0323908764
Category : Science
Languages : en
Pages : 414
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Book Description
Advances in Oxygenated Fuels for Sustainable Development: Feedstocks and Precursors for Catalysts Synthesis provides a roadmap to the sustainable implementation of oxygenated fuels in internal combustion engines through sustainable production, smart distribution and effective utilization. Focusing on the sustainability of feedstocks, the book assesses availability, emissions impact and reduction potential, and biodiversity and land utilization impact. Existing technologies and supply chains are reviewed, and recommendations are provided on how to sustainably implement or update these technologies, including for rural communities. Furthermore, effective supply and distribution network designs are provided alongside methods for monitoring and assessing their sustainability, accounting for social, economic, environmental and ecological factors. This book guides readers through every aspect of the production and commercialization of sustainable oxygenated fuels for internal combustion engines and their implementation across the global transport industry. Provides multilevel perspectives on how to facilitate the sustainable production of oxygenated fuel and develop new indices for measuring the effectiveness and sustainability of implementation Recommends a framework and criteria for assessing the suitability, sustainability, and environmental benefits of oxygenated biofuels Describes the fuel properties of all oxygenated fuels and their performance in unmodified and enhanced CI and SI engines
Author: Zainal Ambri Abdul Karim
Publisher: Springer
ISBN: 9811077541
Category : Technology & Engineering
Languages : en
Pages : 88
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Book Description
This book examines the development and utilization of alternative fuels in order to reduce or control the environmental impact of internal combustion engine exhaust gases. Discussing alternative fuels such as dual fuel techniques, rubber seed/palm oil biodiesel, syngas dual-fuelling, water-in-diesel emulsions and gasification of date palm seeds, it is a valuable resource for researchers in the field of engine development and on alternative fuels.
Author: T. L. Alleman
Publisher: DIANE Publishing
ISBN: 1437911161
Category : Technology & Engineering
Languages : en
Pages : 102
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Book Description
The Nat. Renewable Energy Lab. (NREL) provided technical assistance to the Philippines in the area of biodiesel property testing and utilization. Three fuel samples were provided to NREL from the Philippines. These fuel samples were an unadditized diesel fuel, an additized diesel fuel, and a coconut derived biodiesel (coconut methylester or CME) fuel. Results from the fuel property testing show that the unadditized diesel fuel, the additized diesel fuel, and the CME samples met the Philippine Nat. Standards for diesel fuel quality. The 1% and 5% blends of CME in the diesel fuels also met the current Philippine Nat. Standard for diesel fuel quality. The 5% blend of CME in diesel fuel did increase the cetane number slightly for each blend. Illus.
Author: Independently Published
Publisher:
ISBN: 9781723800351
Category :
Languages : en
Pages : 81
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Book Description
As we all know our society is hugely dependent on the fossil fuels, which results in the highercost of petroleum products, high emissions of HC, CO2 and Nox. To reduce our dependency onthe fossil fuels and to reduce the various emissions new sources of alternate energy must bedeveloped. Biodiesel is becoming one of the most prominent options among the other alternateenergy resources, due to its economic and environmental factors. Biodiesel is an alternative fuelwhich can be used with mineral diesel without any modification or little modifications to theengine. The methyl ester of vegetable oil (edible and non-edible oil) and animal fat are known asbiodiesel. In the past researchers had done blending of biodiesel made from single vegetable oilwith the mineral diesel and left the scope of work on the biodiesel made from the combining oftwo different biodiesel blended with diesel in different mixing ratios.The methyl ester of mahua oil and jatropha oil are produced through transesterification process.The experiment was done to produce dual fuel biodiesel with improved old flow characteristics,and where different percentage of blends was taken to check the physio and chemical propertiesof the dual fuel biodiesel.
Author: Martin Kaltschmitt
Publisher: Springer
ISBN: 3662530651
Category : Technology & Engineering
Languages : en
Pages : 761
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Book Description
This book provides a detailed overview of aspects related to the overall provision chain for biokerosene as part of the global civil aviation business. Starting with a review of the current market situation for aviation fuels and airplanes and their demands, it then presents in-depth descriptions of classical and especially new types of non-edible biomass feedstock suitable for biokerosene provision. Subsequent chapters discuss those fuel provision processes that are already available and those still under development based on various biomass feedstock materials, and present e.g. an overview of the current state of the art in the production of a liquid biomass-based fuel fulfilling the specifications for kerosene. Further, given the growing interest of the aviation industry and airlines in biofuels for aviation, the experiences of an air-carrier are presented. In closing, the book provides a market outlook for biokerosene. Addressing a broad range of aspects related to the pros and cons of biokerosene as a renewable fuel for aviation, the book offers a unique resource.
Author: Mohd Hafizil Mat Yasin
Publisher:
ISBN:
Category : Biodiesel fuels
Languages : en
Pages : 163
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Book Description
Compression ignition engines have been used widely in the transportation sector and power generation for the decades. These engines are less fuel consumed with higher brake thermal efficiency. However, compression ignition engines produce higher pollution in NOx and PM emission as well as cause several negative drawbacks to the environment. Most countries in the world have regulated several regulations to reduce the emission from the engines. Other than that, the introduction of biodiesel in the engines is beneficial and proven to reduce the emission significantly. However, biodiesel has higher density and viscosity with lower heating value as compared to mineral diesel. Fuel additives are among other methods that proven to modify the properties of biodiesel to be comparable with mineral diesel without doing any engine modification. Although fuel additives' ability to reduce harmful emissions is well known in the literature, the mechanism for these additives is not well understood when operated in the four-stroke, four-cylinder diesel engines. Two alcohol-based additives, methanol and ethanol were diluted with B 20 blend (20% biodiesel + 80% mineral diesel) with the formulation of 5% by volume. The test fuels; mineral diesel, B100 (palm-diesel), B20 blend and B20-alcohol blends (B20 E5 and B20 M5) were investigated on a Mitsubishi 4D68 four stroke, four-cylinder water-cooled diesel engine incorporating sensors for in-cylinder pressure measurement and thermocouples. There were two operating modes dealing with these fuels, which the first mode been conducted on increasing engine speeds at 50% throttle position. While as for the second mode, these fuels were operated at three different engine loads, 0.05 MPa, 0.4 MPa and 0.7 MPa with the engine constant speed of 2500 rpm. The effect of test fuels on brake power, brake specific fuel consumption (BSFC), brake thermal efficiency (BTE), combustion (in-cylinder pressure, rate of heat release, cylinder temperature) and NOx, NO, CO and CO2 emissions were investigated. Results found that the performance of diesel engine improved with the use of alcohol (ethanol and methanol) in the B20 blends especially in comparison to mineral diesel, B100 and B20. Overall, the results indicated that when compared to mineral diesel, B100, B20, B20 E5 and B20 M5 have higher brake thermal efficiency. The use of alcohol as a fuel additive in the B20 blend has improved the combustion characteristics when the loads were applied to the engine. Besides, the exhaust emission for the B20 E5 and B20 M5 were fairly reduced when compared to mineral diesel.
