On-road Measurement of NOx and CO2 Emissions from Biodiesel Produced from Different Feedstocks

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ISBN 13 :
Total Pages : pages
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Book Synopsis On-road Measurement of NOx and CO2 Emissions from Biodiesel Produced from Different Feedstocks by : Natchanok Pala-en

Download or read book On-road Measurement of NOx and CO2 Emissions from Biodiesel Produced from Different Feedstocks written by Natchanok Pala-en and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Biodiesel has generated increased interest in the US and elsewhere recently as an alternative to petroleum-derived diesel. Because it can be produced from domestic feedstocks such as soybeans, canola oil, and even recycled cooking oil, biodiesel can help reduce dependence on foreign petroleum. Due to its high oxygen content, biodiesel typically burns more completely than petroleum diesel, and thus has lower emissions of hydrocarbons (HC), carbon monoxide (CO), and particulate matter (PM). However, biodiesel may increase or decrease nitrogen oxide (NOx) and carbon dioxide (CO2) emissions, depending on engine type, test cycle, and biodiesel feedstock. Therefore, the purpose of this study was to compare emissions from biodiesel blend 20% (B20) made from various feedstocks, in an on-road setting using a portable emissions measurement system (PEMS) and a chassis dynamometer setting for a test vehicle (1994 Chevy Silverado). The study tested 4 biodiesel feedstocks (soybean oil, canola oil, waste cooking oil, and animal fat) compared with ultra low sulfur diesel (ULSD) using on-road testing under real-world driving conditions with a Horiba On-Board Measurement System OBS-1300 on a highway route and arterial route, and chassis dynamometer with Urban Dynamometer Drive Schedule. Emissions of NOx and CO2 were measured second-by-second and compared for each feedstock with ULSD. For the dynamometer only, HC, CO, and PM were also measured. Biodiesel fuel specifications from each feedstock were tested and compared. The dynamometer test results showed statistically significant lower emissions of HC, CO, and PM from all B20 blends compared to ULSD. For CO2, on-road testing (arterial, highway, and idling) and dynamometer testing showed no statistically significant difference in emissions among the B20 blends and ULSD. For NOx, dynamometer testing showed only B20 from soybean oil to have statistically significant higher emissions. This is generally consistent with the on-road testing (arterial, highway, and idling), which showed no statistically significant difference in NOx emissions between ULSD and the B20 blends. The results above are specific to the 1994 Chevy Silverado tested, and cannot be generalized to other vehicles.

Biodiesel, Combustion, Performance and Emissions Characteristics

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Publisher : Springer Nature
ISBN 13 : 3030511669
Total Pages : 152 pages
Book Rating : 4.0/5 (35 download)

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Book Synopsis Biodiesel, Combustion, Performance and Emissions Characteristics by : Semakula Maroa

Download or read book Biodiesel, Combustion, Performance and Emissions Characteristics written by Semakula Maroa and published by Springer Nature. This book was released on 2020-07-10 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on biodiesel combustion, including biodiesel performance, emissions and control. It brings together a range of international research in combustion studies in order to offer a comprehensive resource for researchers, students and academics alike. The book begins with an introduction to biodiesel combustion, followed by a discussion of NOx formation routes. It then addresses biodiesel production processes and oil feedstocks in detail, discusses the physiochemical properties of biodiesel, and explores the benefits and drawbacks of these properties. Factors influencing the formation of emissions, including NOx emissions, are also dealt with thoroughly. Lastly, the book discusses the mechanisms of pollution and different approaches used to reduce pollutants in connection with biodiesel. Each approach is considered in detail, and diagrams are provided to illustrate the points in line with industry standard control mechanisms.

Combustion Chemistry of Biodiesel for the Use in Urban Transport Buses

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ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Combustion Chemistry of Biodiesel for the Use in Urban Transport Buses by : Hamid Omidvarborna

Download or read book Combustion Chemistry of Biodiesel for the Use in Urban Transport Buses written by Hamid Omidvarborna and published by . This book was released on 2016 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biofuels, such as biodiesel, offer benefits as a possible alternative to conventional fuels due to their fuel source sustainability and their reduced environmental impact. Before they can be used, it is essential to understand their combustion chemistry and emission characterizations due to a number of issues associated with them (e.g., high emission of nitrogen oxides (NOx), lower heating value than diesel, etc.). During this study, emission characterizations of different biodiesel blends (B0, B20, B50, and B100) were measured on three different feedstocks (soybean methyl ester (SME), tallow oil (TO), and waste cooking oil (WCO)) with various characteristics, while an ultra-low sulfur diesel (ULSD) was used as base fuel at low-temperature combustion (LTC). A laboratory combustion chamber was used to analyze soot formation, NOx emissions, while real engine emissions were measured for further investigation on PM and NOx emissions. For further study, carbon emissions (CO, CO2, and CH4) were also measured to understand their relations with feedstocks' type. The emissions were correlated with fuel's characteristics, especially unsaturation degree (number of double bonds in methyl esters) and chain length (oxygen-to-carbon ratio). The experimental results obtained from laboratory experiments were confirmed by field experiments (real engines) collected from Toledo area regional transit authority (TARTA) buses. Combustion analysis results showed that the neat biodiesel fuels had longer ignition delays and lower ignition temperatures compared to ULSD at the tested condition. The results showed that biodiesel containing more unsaturated fatty acids emitted higher levels of NOx compared to biodiesel with more saturated fatty acids. A paired t-test on fuels showed that neat biodiesel fuels had significant reduction in the formation of NOx compared with ULSD. In another part of this study, biodiesel fuel with a high degree of unsaturation and high portion of long chains of methyl esters (SME) produced more CO and less CO2 emissions than those with low degrees of unsaturation and short chain lengths (WCO and TO, respectively). In addition, biodiesel fuels with long and unsaturated chains released more CH4 than the ones with shorter and less unsaturated chains. Experimental results on soot particles showed a significant reduction in soot emissions when using biodiesel compared to ULSD. For neat biodiesel, no soot particles were observed from the combustion regardless of their feedstock origins. The overall morphology of soot particles showed that the average diameter of ULSD soot particles was greater than the average soot particle from biodiesel blends. Eight elements were detected as the marker metals in biodiesel soot particles. The conclusion suggests that selected characterization methods are valuable for studying the structure and distribution of particulates. Experiments on both PM and NOx emissions were conducted on real engines in parallel with laboratory study. Field experiments using TARTA buses were performed on buses equipped with/without post-treatment technologies. The performance of the bus that ran on blended biodiesel was found to be very similar to ULSD. As a part of this study, the toxic nature of engine exhausts under different idling conditions was studied. The results of the PM emission analysis showed that the PM mean value of emission is dependent on the engine operation conditions and fuel type. Besides, different idling modes were investigated with respect to organic carbon (OC), elemental carbon (EC), and elemental analysis of the PMs collected from public transit buses in Toledo, Ohio. In the modeling portion of this work, a simplified model was developed by using artificial neural network (ANN) to predict NOx emissions from TARTA buses via engine parameters. ANN results showed that the developed ANN model was capable of predicting the NOx emissions of the tested engines with excellent correlation coefficients, while root mean square errors (RMSEs) were in acceptable ranges. The ANN study confirmed that ANN can provide an accurate and simple approach in the analysis of complex and multivariate problems, especially for idle engine NOx emissions. Finally, in the last part of the modeling study, a biodiesel surrogate has been proposed and main pathways have been derived to present a simple model for NOx formation in biodiesel combustion via stochastic simulation algorithm (SSA). The main reaction pathways are obtained by simplifying the previously derived skeletal mechanisms, including saturated methyl decenoate (MD), unsaturated methyl 5-decanoate (MD5D), and n-decane (ND). ND is added to match the energy content and the C/H/O ratio of actual biodiesel fuel. The predicted results are in good agreement with a limited number of experimental data at LTC conditions for three different biodiesel fuels consisting of various ratios of unsaturated and saturated methyl esters. The SSA model shows the potential to predict NOx emission concentrations, when the peak combustion temperature increases through the addition of ULSD to biodiesel. The SSA method demonstrates the possibility of reducing the computational complexity in biodiesel emissions modeling. Based on these findings, it can be concluded that both alternative renewable fuels (biodiesel blends) as well as the LTC condition are suitable choices for existing diesel engines to improve the sustainability of fuel and to reduce environmental emissions.

Biofuels and Sustainability

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Publisher : Springer
ISBN 13 : 4431548955
Total Pages : 261 pages
Book Rating : 4.4/5 (315 download)

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Book Synopsis Biofuels and Sustainability by : Kazuhiko Takeuchi

Download or read book Biofuels and Sustainability written by Kazuhiko Takeuchi and published by Springer. This book was released on 2018-07-13 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book presents a comprehensive analysis of biofuel use strategies from an interdisciplinary perspective using sustainability science. This interdisciplinary perspective (social science-natural science) means that the strategies and policy options proposed will have significant impacts on the economy and society alike. Biofuels are expected to contribute to reducing greenhouse gas emissions, revitalizing economies in agricultural communities and alleviating poverty. However, despite these anticipated benefits, international organizations such as the FAO, OECD and UN have published reports expressing concerns that biofuel promotion may lead to deforestation, water pollution and water shortages. The impacts of biofuel use are extensive, cross-sectoral and complex, and as such, comprehensive analyses are required in order to assess the extent to which biofuels can contribute to sustainable societies. Applying interdisciplinary sustainability science concepts and methodologies, the book helps to enhance the establishment of a sustainable society as well as the development of appropriate responses to a global need for urgent action on current issues related to biofuels.

Life-Cycle Assessment of Biorefineries

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Publisher : Elsevier
ISBN 13 : 0444635866
Total Pages : 324 pages
Book Rating : 4.4/5 (446 download)

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Book Synopsis Life-Cycle Assessment of Biorefineries by : Edgard Gnansounou

Download or read book Life-Cycle Assessment of Biorefineries written by Edgard Gnansounou and published by Elsevier. This book was released on 2016-12-20 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life-Cycle Assessment of Biorefineries, the sixth and last book in the series on biomass-biorefineries discusses the unprecedented growth and development in the emerging concept of a global bio-based economy in which biomass-based biorefineries have attained center stage for the production of fuels and chemicals. It is envisaged that by 2020 a majority of chemicals currently being produced through a chemical route will be produced via a bio-based route. Agro-industrial residues, municipal solid wastes, and forestry wastes have been considered as the most significant feedstocks for such bio-refineries. However, for the techno-economic success of such biorefineries, it is of prime and utmost importance to understand their lifecycle assessment for various aspects. - Provides state-of-art information on the basics and fundamental principles of LCA for biorefineries - Contains key features for the education and understanding of integrated biorefineries - Presents models that are used to cope with land-use changes and their effects on biorefineries - Includes relevant case studies that illustrate main points

Effect of Biodiesel on Diesel Engine Nitrogen Oxide and Other Regulated Emissions

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ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Effect of Biodiesel on Diesel Engine Nitrogen Oxide and Other Regulated Emissions by :

Download or read book Effect of Biodiesel on Diesel Engine Nitrogen Oxide and Other Regulated Emissions written by and published by . This book was released on 2006 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the results of a 3-year project lead by the Naval Facilities Engineering Service Center (NFESC) to obtain emissions factors (i.e. tailpipe air pollution emissions data) from 10 types of Department of Defense (DoD) operated diesel powered engines. Emissions data was obtained from 8 vehicles, primarily buses and trucks, and 2 portable generators. All testing was performed with the engines installed in the vehicles/portable equipment. Emissions factors were determined for the engines fueled with various blends/types of biodiesel as well as a baseline fuel, either California Air Resources Board (CARB) certified Ultra Low Sulfur Diesel (USLD) (15-ppm sulfur maximum) or JP-8. CARB USLD was used since it will be required within California for on-road vehicles starting in June 2006. Biodiesel blends from 20% to 70% were tested along with 100% biodiesel. For the blended biodiesel testing, the biodiesel was mixed with USLD. Although several blends were tested, the project focused on B20 (20% biodiesel) blends, since this is the primary blend of biodiesel used in military vehicles. Testing performed on B20 fuels identified three significant results: (1) There were no consistent trends over all engines tested, (2) There were no statistically significant emissions differences found between biodiesel fuels manufactured from yellow grease or soy bean oil feedstocks, and (3) An extensive statistical analyses indicated no statistically significant differences in Hydrocarbon (HC), Carbon Monoxide (CO), Nitrogen Oxides (NOx) or Particulate Matter (PM) emissions between a B20 biodiesel manufactured at Naval Base Ventura County from yellow grease and CARB ULSD petroleum diesel. The results from this project are significantly different than those previously reported by the Environmental Protection Agency (EPA). Of particular interest is the fact that for actual DoD fleet diesel engines, there was no statistically significant increase in NOx emissions.

PERFORMANCE OF BIODIESEL IN IN

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Publisher : Open Dissertation Press
ISBN 13 : 9781374799431
Total Pages : 104 pages
Book Rating : 4.7/5 (994 download)

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Book Synopsis PERFORMANCE OF BIODIESEL IN IN by : 鄭永權

Download or read book PERFORMANCE OF BIODIESEL IN IN written by 鄭永權 and published by Open Dissertation Press. This book was released on 2017-01-28 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "The Performance of Biodiesel in In-service Motor Vehicles in HongKong" by 鄭永權, Wing-kuen, Cheng, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of the thesis entitled "The Performance of Biodiesel in In-Service Motor Vehicles in Hong Kong" submitted by Cheng Wing-kuen for the degree of Master of Philosophy at The University of Hong Kong in August 2003 Biodiesel is an alternative fuel produced from renewable feedstocks such as vegetable oil and animal fats. Its renewable properties can contribute to improving the atmospheric carbon cycle and diminishing greenhouse effects. Biodiesel can also be produced by using waste lipids from factories and restaurants. In this case it can also contribute to reducing pollution and cutting handling costs for landfill dumping and wastewater treatment. Other advantages of biodiesel include a reduction of air pollutants and lower consumption of petroleum diesel. Although biodiesel has been developed for more than a decade, it has not been widely utilised in automobile applications. As the potential of this fuel deserves further study, I conducted a feasibility study on the use of biodiesel as a motor fuel in Hong Kong, and my findings are reported in this thesis. In this study I evaluated the performance of local in-service motor vehicles run on biodiesel in terms of: (a) engine performance and emission behaviour; and (b) short term and long term effects on engine compatibility and durability. In this thesis I present the results of chassis dynamometer emission testing, on-road measurement, and laboratory compatibility study on elastomers. The data are used to evaluate the impact of biodiesel blends. The average results of B20 show small variations in engine power (-1%) and NOx emission (0%), but a moderate reduction in smoke (-15%), CO (-15%) and HC (-13%) emissions was noted. For B100, there was a small drop in engine power (-3%) but a very significant reduction in smoke (-52%), CO (-27%) and HC (-38%) emissions. A moderate increase in NOx emission (+9%) was observed. The results of the on-road tests showed that neat biodiesel fuels are able to reduce CO emission considerably (-26%), but a moderate increase in NOx emission was also observed. As its effects on engine power were insignificant, and it substantially reduced smoke level, biodiesel demonstrated fast and lasting effects on engine performance and exhaust emissions. However, the negative results obtained from the fuel hose compatibility test demonstrate that certain technical problems must be overcome to ensure that roadworthiness is compromised by the use of this fuel. This research covers several aspects and identifies most of the technical problems that will be encountered in the use of biodiesel fuels. Although component retrofitting and monitoring measures will be required to facilitate the introduction of biodiesel, the encouraging results of this investigation demonstrate that biodiesel has great potential as a future motor fuel in Hong Kong because of its environmental benefits. (414 words) ii DOI: 10.5353/th_b2666533 Subjects: Motor fuels - Environmental aspects - China - Hong Kong Biodiesel fuels - China - Hong Kong Biodiesel fuels - Testing

An Investigation of Urban Mobile Source Aerosol Using Optical Properties Measured by CRDT/N

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Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.:/5 (868 download)

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Book Synopsis An Investigation of Urban Mobile Source Aerosol Using Optical Properties Measured by CRDT/N by : Monica Elizabeth Wright

Download or read book An Investigation of Urban Mobile Source Aerosol Using Optical Properties Measured by CRDT/N written by Monica Elizabeth Wright and published by . This book was released on 2012 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mobile source emissions are a major contributor to global and local air pollution. Governments and regulatory agencies have been increasing the stringency of regulations in the transportation sector for the last ten years to help curb transportation sector air pollution. The need for regulations has been emphasized by scientific research on the impacts from ambient pollution, especially research on the effect of particulate matter on human health. The particulate emissions from diesel vehicles, diesel particulate matter (DPM) is considered a known or probable carcinogen in various countries and increased exposure to DPM is linked to increased cardiovascular health problems in humans. The toxicity of vehicle emissions and diesel particulate emissions in particular, in conjunction with an increased awareness of potential petroleum fuel shortages, international conflict over petroleum fuel sources and climate change science, have all contributed to the increase of biodiesel use as an additive to or replacement for petroleum fuel. The goal of this research is to determine how this increased use of biodiesel in the particular emission testing setup impacts urban air quality. To determine if biodiesel use contributes to a health or climate benefit, both the size range and general composition were investigated using a comprehensive comparison of the particulate component of the emissions in real time. The emissions from various biodiesel and diesel mixtures from a common diesel passenger vehicle were measured with a cavity ring-down transmissometer (CRDT) coupled with a condensation particle counter, a SMPS, a nephelometer, NOx, CO, CO2, and O3 measurements. From these data, key emission factors for several biodiesel and diesel fuel mixtures were developed. This approach reduces sampling artifacts and allows for the determination of optical properties, particle number concentration, and size distributions, along with several important gas phase species' concentrations. Findings indicate that biodiesel additions to diesel fuel do not necessarily have an air quality benefit for particulate emissions in this emission testing scenario. The often cited linear decrease in particulate emissions with increasing biodiesel content was not observed. Mixtures with half diesel and half biodiesel tended to have the highest particulate emissions in all size ranges. Mixtures with more than 50% biodiesel had slightly lower calculated mass for light absorbing carbon, but this reduction in mass is most likely a result of a shift in the size of the emission particles to a smaller size range, not a reduction in the total number of particles. Evaluation of the extensive optical properties from this experimental set-up indicates that biodiesel additions to diesel fuel has an impact on emission particle extinction in both visible and near-IR wavelengths. The B99 mixture had the smallest emission factor for extinction at 532 nm and at 1064 nm. For the extinction at 532 nm, the trend was not linear and the emission factor peaked at the B50 mixture. Results from intensive properties indicate that emissions from B5 and B25 mixtures have Ångström exponents close to 1, typical for black carbon emissions. The mixtures with a larger fraction of biodiesel have Ångström exponent values closer to 2, indicating more absorbing organic matter and/or smaller particle size in the emissions. Additional experimental testing should be completed to determine the application of these results and emission factors to other diesel vehicles or types of diesel and biodiesel fuel mixtures.

Refining Biomass Residues for Sustainable Energy and Bioproducts

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Publisher : Academic Press
ISBN 13 : 0128189975
Total Pages : 643 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Refining Biomass Residues for Sustainable Energy and Bioproducts by : R. Praveen Kumar

Download or read book Refining Biomass Residues for Sustainable Energy and Bioproducts written by R. Praveen Kumar and published by Academic Press. This book was released on 2019-11-08 with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt: The utilization of various types of biomass residue to produce products such as biofuels and biochemicals means biorefinery technology using biomass residues may become a one-stop solution to the increasing need for sustainable, non-fossil sources of energy and chemicals.Refining Biomass Residues for Sustainable Energy and Bioproducts: Technology, Advances, Life Cycle Assessment and Economics focuses on the various biorefineries currently available and discusses their uses, challenges, and future developments. This book introduces the concept of integrated biorefinery systems, as well as their operation and feedstock sourcing. It explores the specificities, current developments, and potential end products of various types of residue, from industrial and municipal to agricultural and marine, as well as residue from food industries. Sustainability issues are discussed at length, including life cycle assessment, economics, and cost analysis of different biorefinery models. In addition, a number of global case studies examine successful experiences in different regions.This book is an ideal resource for researchers and practitioners in the field of bioenergy and waste management who are looking to learn about technologies involved in residue biorefinery systems, how to reduce their environmental impacts, and how to ensure their commercial viability. - Explores a range of different biorefinery categories, such as industrial, agricultural, and marine biomass residues - Includes a Life Cycle Assessment of biorefinery models, in addition to costs and market analysis. - Features case studies from around the world and is written by an international team of authors

Food Waste to Valuable Resources

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Publisher : Academic Press
ISBN 13 : 0128183543
Total Pages : 464 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Food Waste to Valuable Resources by : Rajesh Banu

Download or read book Food Waste to Valuable Resources written by Rajesh Banu and published by Academic Press. This book was released on 2020-04-28 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food Waste to Valuable Resources: Applications and Management compiles current information pertaining to food waste, placing particular emphasis on the themes of food waste management, biorefineries, valuable specialty products and technoeconomic analysis. Following its introduction, this book explores new valuable resource technologies, the bioeconomy, the technoeconomical evaluation of food-waste-based biorefineries, and the policies and regulations related to a food-waste-based economy. It is an ideal reference for researchers and industry professionals working in the areas of food waste valorization, food science and technology, food producers, policymakers and NGOs, environmental technologists, environmental engineers, and students studying environmental engineering, food science, and more. - Presents recent advances, trends and challenges related to food waste valorization - Contains invaluable knowledge on of food waste management, biorefineries, valuable specialty products and technoeconomic analysis - Highlights modern advances and applications of food waste bioresources in various products' recovery

Biodiesel Properties and Characterization of Particulate Matter Emissions from TARTA Buses Fueled by B20 Biodiesel

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Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Biodiesel Properties and Characterization of Particulate Matter Emissions from TARTA Buses Fueled by B20 Biodiesel by : Sudheer Kumar Kuppili

Download or read book Biodiesel Properties and Characterization of Particulate Matter Emissions from TARTA Buses Fueled by B20 Biodiesel written by Sudheer Kumar Kuppili and published by . This book was released on 2016 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physical properties (cloud point, kinematic viscosity, and flash point) of biodiesel blends of commercial biodiesel fuels were measured. Four different biodiesel blends (10, 20, 50, 100 %) based on three feedstocks (tallow oil, soybean, and waste cooking oil) were tested, and the results were compared with ultra-low-sulfur diesel (ULSD). All the tests were conducted according to the American Society for Testing and Materials (ASTM) standard methods. The test results were evaluated statistically. The tested properties showed strong dependence on blends, which means that the percentage of biodiesel in a biodiesel/ULSD mixture is an important factor that determines the biodiesel properties. It was also found that the type of feedstock is a controlling factor in the biodiesel properties. Contents of saturated fatty acids and triglycerides at higher percentages are thought to be the main determinant of the degree of the dependence, and also the cause of undesired variations in the cold flow properties, kinematic viscosity and flash point. These variations may be controlled through modifications in the transesterification process or by using additives, which is necessary for better engine performance with biodiesel blends. Particulate matter (PM) emissions from mobile sources are the major contributors of urban atmospheric particulate matter especially PM2.5. Particulate matter released from diesel engines contains various organic and inorganic compounds. It is necessary to measure the PM size distribution shape, elemental and organic carbon etc., released from vehicles in order to quantify the source contribution and understand the possible health impacts. Previous studies stated PM2.5 and PM10 to be highly toxic and roots for respiratory illnesses such as asthma and chronic bronchitis, lung inflammation and also increases cardiovascular related risk factors. Biodiesel is one of alternative fuels that are being increasingly used to reduce the release of PM emissions from mobile sources. The current literature shows that the release of PM from transit buses decreases by increasing the biodiesel blend percentage with regular diesel. In this study, the experiments were conducted on the Toledo Area Regional Transit Authority (TARTA) buses 701 and 802, which run on B20 soybean biodiesel (20 vol% biodiesel + 80 vol% ultra-low sulfur diesel). PM emissions were collected on quartz filter papers and were further analyzed for PM characterization. A new approach of measuring particulate matter has been developed based on the dynamic light scattering and electric double layer of PM particles using a NICOMP 380 ZLS Zeta potential particle size analyzer and sonication process to suspend the PM into a liquid. Regardless of the bus number, average mean diameter was more for emissions from hot idling than cold. Also, 701 has PM of larger diameter than 802 in both idling modes. Tests results were also analyzed for Elemental Carbon (EC) and Organic Carbon (OC). Elemental carbon was formed from fuel rich engine locations at high combustion temperatures, whereas organic carbon was formed from primary fuel combustion and atmospheric chemical reactions at low vapor pressure. EC concentration has reduced to nearly 10% of TC from 701 to 802 during idle modes, whereas in the same situation OC concentration has increase to 89%. Hot idling has been the main source for EC emissions, and to control EC and PM emissions hot idling must be avoided. From all these finding in this study biodiesel fuel with NOx emission controlling equipment's are better than the conventional diesel fuels and are suitable for the diesel engines. This will help in improving the sustainability of the fuel and also moderate the emissions.

Year-round Biodiesel Use Strategy in Diesel Engines in Canadian Adverse Cold Weather Conditions

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (128 download)

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Book Synopsis Year-round Biodiesel Use Strategy in Diesel Engines in Canadian Adverse Cold Weather Conditions by : Arvind Mangad

Download or read book Year-round Biodiesel Use Strategy in Diesel Engines in Canadian Adverse Cold Weather Conditions written by Arvind Mangad and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of climate change that have been seen at an unprecedented scale over last decade or so, have sparked intensive efforts toward the identification and development of clean, environmentally compatible, and renewable fuels. Biofuels such as alcohol and biodiesel have been identified as alternatives for powering internal combustion engines. When using vegetable oil as a feedstock for the production of biodiesel, major issues that arise include its poor low temperature properties. In this study, an experimental analysis was conducted to test the feasibility of biodiesel in cold climates specifically in Thunder Bay region and to suggest an appropriate solution for the biodiesel usage throughout the year. Weather reports from last decade were studied to compare with the cloud points of biodiesel blends. Biodiesel was produced from canola oil from transesterification and fractionation processes. Summer diesel and winter diesel have been used as reference fuels. Five different fuel series were used. The first series was summer diesel-biodiesel with ten blends (SB10, SB20, SB30, SB40, SB50, SB60, SB70, SB80, SB90 and B100). The second series was winter diesel-biodiesel with ten blends (WB10, WB20, WB30, WB40, WB50, WB60, WB70, WB80, WB90 and B100). The third series was winter diesel-biodiesel with 2 volume percent of (cold flow additive) Wintron Synergy series (WB20S2, WB50S2 and B100S2). The fourth series was winter diesel-fractionated biodiesel (FB20, FB50 and FB100). The final was winter diesel-fractionated biodiesel with 2 volume percent of Wintron Synergy series (FB20S2, FB50S2 and FB100S2). Except for winter diesel-biodiesel with 2 vol% synergy, all the fuel blend series were tested on two separate diesel engines; a four-cylinder heavy-duty diesel engine at constant speed of 800 rpm for emissions at idling condition followed by a two-cylinder light-duty diesel engine to investigate effects of fuel blends on performance and emission, under low, medium and high loads, at variable engine speeds of 1000 rpm, 2100 rpm and 3000 rpm. Results showed that normal biodiesel and fractionated biodiesel with 2 vol% synergy showed significant improvement in the cloud point. FB40S2 has the lowest cloud point compared to other fuel blends measuring -48.5°C. The effect of fuel blends on engine performance in light duty engine was investigated. The emissions of carbon monoxide (CO), hydrocarbon (HC), oxides of nitrogen (NOx) and smoke opacity from different fuel blends were measured and compared to summer and winter diesel fuels. In both the engines, fractionated biodiesel and synergy blends were found to be effective in reducing both CO and HC emissions. Smoke opacity emissions when compared from both the engines had a contrasting results. However, all biodiesel blends increased NOx emission. Results indicated that fractionated biodiesel with 2 vol% synergy had better engine performance, and lower emission compared with diesel fuel and normal biodiesel blends. Thus, fractionated biodiesel up to 80 vol% with 2 vol% synergy was found to be suitable for use in diesel engines in extreme winter conditions in Canada without the need for any engine modification.

Handbook of Biofuels Production

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Author :
Publisher : Woodhead Publishing
ISBN 13 : 0081004567
Total Pages : 772 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Handbook of Biofuels Production by : Rafael Luque

Download or read book Handbook of Biofuels Production written by Rafael Luque and published by Woodhead Publishing. This book was released on 2016-05-19 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Biofuels Production, Second Edition, discusses advanced chemical, biochemical, and thermochemical biofuels production routes that are fast being developed to address the global increase in energy usage. Research and development in this field is aimed at improving the quality and environmental impact of biofuels production, as well as the overall efficiency and output of biofuels production plants. The book provides a comprehensive and systematic reference on the range of biomass conversion processes and technology. Key changes for this second edition include increased coverage of emerging feedstocks, including microalgae, more emphasis on by-product valorization for biofuels' production, additional chapters on emerging biofuel production methods, and discussion of the emissions associated with biofuel use in engines. The editorial team is strengthened by the addition of two extra members, and a number of new contributors have been invited to work with authors from the first edition to revise existing chapters, thus offering fresh perspectives. - Provides systematic and detailed coverage of the processes and technologies being used for biofuel production - Discusses advanced chemical, biochemical, and thermochemical biofuels production routes that are fast being developed to address the global increase in energy usage - Reviews the production of both first and second generation biofuels - Addresses integrated biofuel production in biorefineries and the use of waste materials as feedstocks

Biofuels for Transport

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Author :
Publisher : OECD
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Biofuels for Transport by : International Energy Agency

Download or read book Biofuels for Transport written by International Energy Agency and published by OECD. This book was released on 2004 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the absence of strong government policies, the IEA projects that the worldwide use of oil in transport will nearly double between 2000 and 2030, leading to a similar increase in greenhouse gas emissions. Bio fuels, such as ethanol, bio diese

Diesel Emissions and Their Control, 2nd Edition

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Author :
Publisher : SAE International
ISBN 13 : 1468605704
Total Pages : 1135 pages
Book Rating : 4.4/5 (686 download)

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Book Synopsis Diesel Emissions and Their Control, 2nd Edition by : W. Addy Majewski

Download or read book Diesel Emissions and Their Control, 2nd Edition written by W. Addy Majewski and published by SAE International. This book was released on 2023-12-20 with total page 1135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineers, applied scientists, students, and individuals working to reduceemissions and advance diesel engine technology will find the secondedition of Diesel Emissions and Their Control to be an indispensablereference. Whether readers are at the outset of their learning journey orseeking to deepen their expertise, this comprehensive reference bookcaters to a wide audience.In this substantial update to the 2006 classic, the authors have expandedthe coverage of the latest emission technologies. With the industryevolving rapidly, the book ensures that readers are well-informed aboutthe most recent advances in commercial diesel engines, providing acompetitive edge in their respective fields. The second edition has alsostreamlined the content to focus on the most promising technologies.This book is rooted in the wealth of information available on DieselNet.com, where the “Technology Guide” papers offer in-depth insights. Eachchapter includes links to relevant online materials, granting readers accessto even more expertise and knowledge.The second edition is organized into six parts, providing a structuredjourney through every aspect of diesel engines and emissions control: Part I: A foundational exploration of the diesel engine, combustion, andessential subsystems. Part II: An in-depth look at emission characterization, health andenvironmental impacts, testing methods, and global regulations. Part III: A comprehensive overview of diesel fuels, covering petroleumdiesel, alternative fuels, and engine lubricants. Part IV: An exploration of engine efficiency and emission controltechnologies, from exhaust gas recirculation to engine control. Part V: The latest developments in diesel exhaust aftertreatment,encompassing catalyst technologies and particulate filters. Part VI: A historical journey through the evolution of dieselengine technology, with a focus on heavy-duty engines in the NorthAmerican market. (ISBN 9781468605693, ISBN 9781468605709, ISBN 9781468605716, DOI: 10.4271/9781468605709)

Business Management for Biodiesel Producers

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Author :
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Business Management for Biodiesel Producers by : Jon Harlan Van Gerpen

Download or read book Business Management for Biodiesel Producers written by Jon Harlan Van Gerpen and published by . This book was released on 2004 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Diesel Combustion and Emissions

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Author :
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Diesel Combustion and Emissions by : Society of Automotive Engineers

Download or read book Diesel Combustion and Emissions written by Society of Automotive Engineers and published by . This book was released on 1981 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: