Download or read book Investigation of the Performance and Emissions Characteristics of Dual Fuel Combustion in a Single Cylinder IDI Diesel Engine written by Johnnie L. Williams (Jr.) and published by . This book was released on 2018 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Author's Abstract: Restrictions in the allowable exhaust gas emissions of diesel engines has become a driving factor in the design, development, and implementation of internal combustion (IC) engines. A dual fuel research engine concept was developed and implemented in an indirect injected engine in order to research combustion characteristics and emissions for non-road applications. The experimental engine was operated at a constant speed and load 2400 rpm and 5.5 bar indicated mean effective pressure (IMEP). n-Butanol was port fuel injected at 10%, 20%, 30%, and 40% by mass fraction with neat ultra-low sulfur diesel (ULSD#2). Peak pressure, maximum pressure rise rates, and heat release rates all increased with the increasing concentration of n-Butanol. MPRR increased by 127% and AHRR increased by 30.5% as a result of the shorter ignition delay and combustion duration. Ignition delay and combustion duration were reduced by 3.6% and 31.6% respectively. This occurred despite the lower cetane number of n-Butanol as a result of increased mixing due to the port fuel injection of the alcohol. NOx and soot were simultaneously reduced by 21% and 80% respectively. Carbon monoxide and unburned hydrocarbons emissions were increased for the dual fuel combustion strategies due to valve overlap. Results display large emission reductions of harmful pollutants, such as NOx and soot.
Download or read book Proceedings of International Conference in Mechanical and Energy Technology written by Sanjay Yadav and published by Springer Nature. This book was released on 2020-06-01 with total page 799 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected peer-reviewed papers from the International Conference on Mechanical and Energy Technologies, which was held on 7–8 November 2019 at Galgotias College of Engineering and Technology, Greater Noida, India. The book reports on the latest developments in the field of mechanical and energy technology in contributions prepared by experts from academia and industry. The broad range of topics covered includes aerodynamics and fluid mechanics, artificial intelligence, nonmaterial and nonmanufacturing technologies, rapid manufacturing technologies and prototyping, remanufacturing, renewable energies technologies, metrology and computer-aided inspection, etc. Accordingly, the book offers a valuable resource for researchers in various fields, especially mechanical and industrial engineering, and energy technologies.
Download or read book A Computational Study of Diesel and Diesel methane Dual Fuel Combustion in a Single cylinder Research Engine written by Prabhat Ranjan Jha and published by . This book was released on 2017 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dual fuel combustion is one strategy to achieve low oxides of nitrogen and soot emissions while maintaining the fuel conversion efficiency of IC engines. However, it also suffers from high engine-out carbon monoxide and unburned hydrocarbon emissions, and the incidence of knock at high loads. The present work focused on CFD simulation of diesel-methane dual fuel combustion in a single-cylinder research engine (SCRE). For pure diesel combustion, a load sweep of 2.5 bar brake mean effective pressure (BMEP) to 7.5 bar BMEP was performed at a constant engine speed of 1500 rpm and a diesel injection pressure of 500 bar. For diesel-methane dual fuel combustion, a methane percent energy substitution sweep was performed from 30% to 90 % at 1500 rpm, 3.3 bar BMEP, 500 bar Pinj, and 355 crank angle degrees (CAD) diesel injection timing. Combustion, performance, and emissions results are presented and compared with experimental data where possible.
Download or read book Dual Fuel Diesel Engines written by Ghazi A. Karim and published by CRC Press. This book was released on 2015-03-02 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dual-Fuel Diesel Engines offers a detailed discussion of different types of dual-fuel diesel engines, the gaseous fuels they can use, and their operational practices. Reflecting cutting-edge advancements in this rapidly expanding field, this timely book:Explains the benefits and challenges associated with internal combustion, compression ignition,
Download or read book Energy Research Abstracts written by and published by . This book was released on 1982 with total page 1744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EXPERIMENTAL AND COMPUTATIONAL INVESTIGATION OF DUAL FUEL DIESEL NATURAL GAS RCCI COMBUSTION IN A HEAVY DUTY DIESEL ENGINE written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Among the various alternative fuels, natural gas is considered as a leading candidate for heavy-duty applications due to its availability and applicability in conventional internal combustion diesel engines. Compared to their diesel counterparts natural gas fueled spark-ignited engines have a lower power density, reduced low-end torque capability, limited altitude performance, and ammonia emissions downstream of the three-way catalyst. The dual fuel diesel/natural gas engine does not suffer with the performance limitations of the spark-ignited concept due to the flexibility of switching between different fueling modes. Considerable research has already been conducted to understand the combustion behavior of dual fuel diesel/natural gas engines. As reported by most researchers, the major difficulty with dual fuel operation is the challenge of providing high levels of natural gas substitution, especially at low and medium loads. In this study extensive experimental and simulation studies were conducted to understand the combustion behavior of a heavy-duty diesel engine when operated with compressed natural gas (CNG) in a dual fuel regime. In one of the experimental studies, conducted on a 13 liter heavy-duty six cylinder diesel engine with a compression ratio of 16.7:1, it was found that at part loads high levels of CNG substitution could be achieved along with very low NOx and PM emissions by applying reactivity controlled compression ignition (RCCI) combustion. When compared to the diesel-only baseline, a 75% reduction in both NOx and PM emissions was observed at a 5 bar BMEP load point along with comparable fuel consumption values. Further experimental studies conducted on the 13 liter heavy-duty six cylinder diesel engine have shown that RCCI combustion targeting low NOx emissions becomes progressively difficult to control as the load is increased at a given speed or the speed is reduced at a given load. To overcome these challenges a number of simulation studies were conducted to quantify the in-cylinder conditions that are needed at high loads and low to medium engine speeds to effectively control low NOx RCCI combustion. A number of design parameters were analyzed in this study including exhaust gas recirculation (EGR) rate, CNG substitution, injection strategy, fuel injection pressure, fuel spray angle and compression ratio. The study revealed that lowering the compression ratio was very effective in controlling low NOx RCCI combustion. By lowering the base compression ratio by 4 points, to 12.7:1, a low NOx RCCI combustion was achieved at both 12 bar and 20 bar BMEP load points. The NOx emissions were reduced by 75% at 12 bar BMEP while fuel consumption was improved by 5.5%. For the 20 BMEP case, a 2% improvement in fuel consumption was achieved with an 87.5% reduction in NOx emissions. At both load points low PM emissions were observed with RCCI combustion. A low NOx RCCI combustion system has multiple advantages over other combustion approaches, these include; significantly lower NOx and PM emission which allows a reduction in aftertreatment cost and packaging requirements along with application of higher CNG substitution rates resulting in reduced CO2 emissions.
Download or read book Advances in Compression Ignition Natural Gas Diesel Dual Fuel Engines written by Hongsheng Guo and published by Frontiers Media SA. This book was released on 2021-03-23 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engine Performance Combustion and Emission Characteristics of a Diesel Engine Burning Gaseous diesel Dual Fuel written by Quan Zhou and published by . This book was released on 2016 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the present study, both gaseous emissions and particulate matter emissions were studied. Gaseous fuel-diesel dual fuel engine produces much higher brake specific carbon monoxide (BSCO) and hydrocarbon (BSHC) emissions, but lower brake specific particle mass concentration (BSPM) and nitrogen oxides (BSNOX) emissions. Regarding to the particle size distribution and number concentration, with the increase of engine load, the particle size distribution moves from small to large region. With gaseous fuel addition, the particle total number concentrations (TNC) and geometric mean diameters (GMD) of all dual fuel modes are decreased compared to that of neat diesel mode. In addition, the decreasing rate is increased with higher power substitution of gaseous fuel. Conclusively, the 20% methane-diesel dual fuel mode is observed to be the most effective operating mode that the BSNOX emissions and BSPM concentration reduced by 24.7% and 37.9% at the 80% engine load. In addition, it gives the best engine performance compared with other operating modes.
Download or read book An Experimental Investigation of Dual injection Strategies on Diesel methane Dual fuel Low Temperature Combustion in a Single Cylinder Research Engine written by Aamir Sohail and published by . This book was released on 2015 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present manuscript discusses the performance and emission benefits due to two diesel injections in diesel-ignited methane dual fuel Low Temperature Combustion (LTC). A Single Cylinder Research Engine (SCRE) adapted for diesel-ignited methane dual fuelling was operated at 1500 rev/min and 5 bar BMEP with 1.5 bar intake manifold pressure. The first injection was fixed at 310 CAD. A 2nd injection sweep timing was performed to determine the best 2nd injection timing (as 375 CAD) at a fixed Percentage Energy Substitution (PES 75%). The motivation to use a second late injection ATDC was to oxidize Unburnt Hydrocarbons (HC) generated from the dual fuel combustion of first injection. Finally, an injection pressure sweep (550-1300 bar) helped achieve simultaneous reduction of HC (56%) and CO (43%) emissions accompanied with increased IFCE (10%) and combustion efficiency (12%) w.r.t. the baseline single injection (at 310 CAD) of dual fuel LTC.
Download or read book Alternative Fuels for Compression Ignition Engines written by Zainal Ambri Abdul Karim and published by Springer. This book was released on 2018-02-19 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Application of Liquid Biofuels to Internal Combustion Engines written by Soo-Young No and published by Springer Nature. This book was released on 2020-02-17 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Investigation of Diesel ethanol and Diesel gasoline Dual Fuel Combustion in a Single Cylinder Optical Diesel Engine written by Mahmoudreza Mirmohammadsadeghi and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Investigation of Diesel ignited Gasoline and Diesel ignited Methane Dual Fuel Concepts in a Single Cylinder Research Engine written by Umang Dwivedi and published by . This book was released on 2013 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diesel-ignited gasoline and diesel-ignited methane dual fuel combustion experiments were performed in a single-cylinder research engine (SCRE), outfitted with a common-rail diesel injection system and a stand-alone engine controller. Gasoline was injected in the intake port using a port-fuel injector, whereas methane was fumigated into the intake manifold. The engine was operated at a constant speed of 1500 rev/min, a constant load of 5.2 bar IMEP, and a constant gasoline/methane energy substitution of 80%. Parameters such as diesel injection timing (SOI), diesel injection pressure, and boost pressure were varied to quantify their impact on engine performance and engineout ISNOx, ISHC, ISCO, and smoke emissions. The change in combustion process from heterogeneous combustion to HCCI like combustion was also observed.
Download or read book Investigation of the Combustion Emissions and Engine Performance Characteristics written by David Henry Nelson and published by . This book was released on 2010 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Author's abstract: Bio-fuels and emissions are of great concern today with limited petroleum resources, and increasingly strict regulations by the Environmental Protection Agency on combustion emissions. In this study, a single cylinder, naturally aspirated diesel engine with a separate three vortex combustion chamber is used to investigate combustion and emissions of low sulfur diesel with comparison to blends of biodiesel with diesel. The separate combustion chamber is designed to help reduce emissions, which has not been thoroughly tested with biodiesels. Poultry fat is chosen because of its sustainability characteristics, ease of availability, and high yields of oil to produce biodiesel. To conduct this study, the engine is instrumented with sensors and data acquisition equipment and tested using a dynamometer. Data from both the biodiesel blends and the low sulfur diesel is collected from running the engine at 100% full power for increments of 200 rpm in speed; 2,000-2,600 rpm. NOx emissions vary according to different engine parameters, but overall efficiency is maintained around 31%. Fuel consumption increases by 7-12% depending upon speed and fuel blend, but desired power is maintained with no engine damage or modifications.
Download or read book Energy and Exergy for Sustainable and Clean Environment Volume 2 written by V. Edwin Geo and published by Springer Nature. This book was released on 2022-09-19 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: This multi-disciplinary book presents the most recent advances in exergy, energy, and environmental issues. Volume 2 focuses on fundamentals in the field and covers current problems, future needs, and prospects in the area of energy and environment from researchers worldwide. Based on some selected lectures from the Eleventh International Exergy, Energy and Environmental Symposium (IEEES-11) and complemented by further invited contributions, this comprehensive set of contributions promote the exchange of new ideas and techniques in energy conversion and conservation in order to exchange best practices in "energetic efficiency." Included are fundamental and historical coverage of the green transportation and sustainable mobility sectors, especially regarding the development of sustainable technologies for thermal comforts and green transportation vehicles. Furthermore, contributions on renewable and sustainable energy sources, strategies for energy production, and the carbon-free society constitute an important part of this book.
Download or read book Emission Reduction with an Alternative Diesel Combustion Process written by Marvin Sascha Wahl and published by Springer Nature. This book was released on 2023-07-29 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marvin Sascha Wahl presents the possibilities for optimising diesel engine combustion. In the advanced process of partially premixed diesel combustion, nitrogen oxide and soot emissions can be minimised at the same time. A new feature is the possibility of applying this strategy up to 2000 revolutions and 10 bar indicated mean pressure. In this work, various effective parameters are also compared and correlated with each other. A final comparison with conventional diesel combustion shows the advantages and disadvantages and evaluates them.
Download or read book Artificial Intelligence for Renewable Energy systems written by Ashutosh Kumar Dubey and published by Woodhead Publishing. This book was released on 2022-08-01 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial Intelligence for Renewable Energy Systems addresses the energy industries remarkable move from traditional power generation to a cost-effective renewable energy system, and most importantly, the paradigm shift from a market-based cost of the commodity to market-based technological advancements. Featuring recent developments and state-of-the-art applications of artificial intelligence in renewable energy systems design, the book emphasizes how AI supports effective prediction for energy generation, electric grid related line loss prediction, load forecasting, and for predicting equipment failure prevention. Looking at approaches in system modeling and performance prediction of renewable energy systems, this volume covers power generation systems, building service systems and combustion processes, exploring advances in machine learning, artificial neural networks, fuzzy logic, genetic algorithms and hybrid mechanisms. Includes real-time applications that illustrates artificial intelligence and machine learning for various renewable systems Features a templated approach that can be used to explore results, with scientific implications followed by detailed case studies Covers computational capabilities and varieties for renewable system design
