Relevant bibliographies by topics / Alternative combustion

Academic literature on the topic 'Alternative combustion'

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Published: 14 March 2023

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Journal articles on the topic "Alternative combustion"

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Weißbäck, Michael, János Csató, Michael Glensvig, Theodor Sams, and Peter Herzog. "Alternative combustion." MTZ worldwide 64, no. 9 (September 2003): 17–20. http://dx.doi.org/10.1007/bf03227611.

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Du, Zhibin, Chao Chen, and Lei Wang. "Combustion characteristics of and bench test on “gasoline + alternative fuel”." Thermal Science, no. 00 (2020): 324. http://dx.doi.org/10.2298/tsci200704324d.

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In this study, an evaporative premixed constant-volume combustion system was designed for combustion of liquid fuels, compared with a traditional constant-volume firebomb. The effects of an alternative fuel of gasoline on the combustion characteristics of the laminar flame of gasoline were analyzed, and then a bench test was carried out. The results show that the addition of an alternative fuel of gasoline makes the maximum non-stretched flame propagation velocity of combusting gasoline increasingly close to that of combusting diluted mixed gas. The Markstein lengths of gasoline and ?gasoline + alternative fuel? become shorter with a higher equivalence ratio, and flame combustion becomes increasingly unstable. The laminar combustion velocity of ?gasoline + alternative fuel? rises first and then declines as the equivalence ratio increases. According to the results of the bench test, adding 20% of the alternative fuel into gasoline will exert little impact on the power performance and fuel consumption of the engine, but it will reduce HC emission by 25% and CO emission by 67%.
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Ghenai, Chaouki, Khaled Zbeeb, and Isam Janajreh. "Combustion of alternative fuels in vortex trapped combustor." Energy Conversion and Management 65 (January 2013): 819–28. http://dx.doi.org/10.1016/j.enconman.2012.03.012.

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Jankowski, Antoni, and Mirosław Kowalski. "Alternative fuel in the combustion process of combustion engines." Journal of KONBiN 48, no. 1 (December 1, 2018): 55–81. http://dx.doi.org/10.2478/jok-2018-0047.

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Abstract The article analyses the impact of emulsified fuel, containing H2O2 hydrogen peroxide, on the emissions of nitrogen oxides and diesel engine smoke. The process of forming toxic components in exhaust gases of reciprocating engines during the engine operation, and the relationship that specifies the hydrogen peroxide decomposition process were presented. The research was carried out with the use of fuel containing 30%, 20% and 10% of hydrogen peroxide. The concentration courses of the nitric oxide (NO) and nitrogen oxides (NOx), as well as the (CO) carbon monoxide concentration and (S) engine smoke courses were shown separately for the external characteristics of the engine. Finally, the importance of knowledge related to the mechanisms of generation of toxic components in exhaust gases in the reciprocating engines was emphasised.
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Dellenback, Paul A. "A Reassessment of the Alternative Regeneration Cycle." Journal of Engineering for Gas Turbines and Power 128, no. 4 (August 19, 2005): 783–88. http://dx.doi.org/10.1115/1.2179079.

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Two prior papers and several patents have considered improvements to a gas turbine engine’s cycle efficiency by using two turbines in series with an intermediate heat exchanger that preheats combustion air. This approach allows heating the combustion air to temperatures higher than those that can be achieved with “conventional regeneration” in which the combustion products are fully expanded across a turbine before any heat recovery. Since heat addition in the combustor of the “alternative regeneration” cycle occurs at a higher average temperature, then under certain conditions the cycle efficiency can be higher than that available from a cycle using conventional regeneration. This paper reconsiders the usefulness of the alternative regeneration cycle with more detailed modeling than has been presented previously. The revised modeling shows that the alternative regeneration cycle can produce efficiencies higher than conventional regeneration, but only for a more limited set of conditions than previously reported. For high-technology engines operating at high temperatures, the alternative regeneration cycle efficiencies can be three to four percentage points better than comparable conventional regeneration cycles. For lower-technology engines, which are more typical of those currently installed, improvements in efficiency only occur at lower values of heat exchanger effectiveness, which limits the usefulness of the alternative regeneration cycle. Also considered is an extension to the cycle that employs a second heat exchanger downstream of the second turbine for the purpose of further preheating the combustion air. In its optimum configuration, this “staged heat recovery” can produce additional small improvements of between 0.3 and 2.3 percentage points in cycle efficiency, depending on the particular cycle parameters assumed.
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Martins, Jorge, and F. P. Brito. "Alternative Fuels for Internal Combustion Engines." Energies 13, no. 16 (August 6, 2020): 4086. http://dx.doi.org/10.3390/en13164086.

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The recent transport electrification trend is pushing governments to limit the future use of Internal Combustion Engines (ICEs). However, the rationale for this strong limitation is frequently not sufficiently addressed or justified. The problem does not seem to lie within the engines nor with the combustion by themselves but seemingly, rather with the rise in greenhouse gases (GHG), namely CO2, rejected to the atmosphere. However, it is frequent that the distinction between fossil CO2 and renewable CO2 production is not made, or even between CO2 emissions and pollutant emissions. The present revision paper discusses and introduces different alternative fuels that can be burned in IC Engines and would eliminate, or substantially reduce the emission of fossil CO2 into the atmosphere. These may be non-carbon fuels such as hydrogen or ammonia, or biofuels such as alcohols, ethers or esters, including synthetic fuels. There are also other types of fuels that may be used, such as those based on turpentine or even glycerin which could maintain ICEs as a valuable option for transportation.
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Park, Okjoo, Peter S. Veloo, Ning Liu, and Fokion N. Egolfopoulos. "Combustion characteristics of alternative gaseous fuels." Proceedings of the Combustion Institute 33, no. 1 (2011): 887–94. http://dx.doi.org/10.1016/j.proci.2010.06.116.

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Bürgler, Ludwig, Michael Glensvig, Klemens Neunteufl, and Michael Weißbäck. "Vehicle application with alternative diesel combustion." MTZ worldwide 66, no. 11 (November 2005): 12–15. http://dx.doi.org/10.1007/bf03227796.

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Lyon, Richard K., and Jerald A. Cole. "Unmixed combustion: an alternative to fire." Combustion and Flame 121, no. 1-2 (April 2000): 249–61. http://dx.doi.org/10.1016/s0010-2180(99)00136-4.

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Bae, Choongsik, and Jaeheun Kim. "Alternative fuels for internal combustion engines." Proceedings of the Combustion Institute 36, no. 3 (2017): 3389–413. http://dx.doi.org/10.1016/j.proci.2016.09.009.

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Dissertations / Theses on the topic "Alternative combustion"

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Chong, Cheng Tung. "Combustion characteristics of alternative liquid fuels." Thesis, University of Cambridge, 2011. https://www.repository.cam.ac.uk/handle/1810/244379.

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Envisaged application of biodiesel in gas turbine engines or furnaces requires extensive tests on the deflagration properties of biodiesel. The laminar flame speeds of Palm Methyl Esters (PME) and blends of PME with conventional fuels are determined using the jet-wall stagnation flame configuration. The same technique is also used to measure the laminar flame speed of diesel, Jet-A1, n-heptane, acetone, methane and methane/acetone. The spray atomization characteristics of a plain-jet airblast atomizer are investigated using a phase Doppler anemometry (PDA) under non-reacting conditions. The droplet size and velocity distribution of biodiesels are compared to conventional fuels. For spray combustion investigations, a generic gas turbine-type combustor is developed to compare the spray flame established from PME, rapeseed methyl esters (RME), diesel, Jet-A1 and biodiesel blends. The spray droplet characteristics in the flame and the flow field in the combustor are investigated. Chemiluminescence imaging of OH* and CH* are applied to capture the global flame structure and heat release region. Flame spectroscopy and long bandpass filtered imaging at > 550 nm are performed to evaluate the tendency of soot formation. In general, biodiesels exhibit flame shapes and spray droplet characteristics that are comparable to conventional fuels. In spite of the higher fuel specific consumption, the emission of NOx is found to be lower for biodiesels compared to conventional fuels. The results show that biodiesels can potentially be used as alternative fuels for gas turbine operation.
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Giles, Anthony Peter. "Alternative fuels and technology for internal combustion engines." Thesis, Cardiff University, 2006. http://orca.cf.ac.uk/56090/.

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Within this thesis is an investigation and appraisal of alternative automotive fuels, internal combustion engine technology and emission reduction techniques. A review of the developments in engine technology, with specific focus on improvements in engine efficiency and emission reductions was undertaken. Tighter emission legislation imposed after the Kyoto agreement has resulted in technological advances in the field of internal combustion engines improving the economy of modern motor vehicles while reducing their emissions of C02 and particulate matter. As part of an EU funded project entitled "Magnetic Movement Valve for Miller Cycle operation of engines", the application of a novel secondary valve apparatus to an internal combustion engine was investigated through the use of computer modelling. It was shown that the secondary valve concept is capable of controlling the output of an internal combustion engine, while increasing the operating efficiency and reducing the emission of NOx through the use of Miller cycle operation and throttle free load control. A development programme of the engine and the secondary valve apparatus, carried out in conjunction with EU project partners, resulted in a marketable engine incorporating the new technology which is now in production within Europe and the Far East. An engine test-bed facility was commissioned to investigate the emissions and performance of a diesel engine fuelled by a variety of biodiesel / diesel fuel blends. It was found that incremental addition of biodiesel to a low sulphur diesel fuel resulted in a decrease in engine power and an increase in fuel consumption, CO2 and NOx emissions. The particulates levels of pure biodiesel emissions were found to be much lower (by mass and number concentration) than that of the low sulphur diesel fuel. From analysis of the exhaust gases it was found that the average size of the particulates is larger for biodiesel fuel than for the low sulphur diesel fuel.
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IEMMOLO, DANIELE. "Alternative fuels and combustion modes to lower pollutant emissions from conventional internal combustion engines." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2724575.

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Altaher, Mohamed Alalim. "Combustion and emissions of alternative fuels in gas turbines." Thesis, University of Leeds, 2013. http://etheses.whiterose.ac.uk/4954/.

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Renewable biomass derived fuels are of increasing interest for many applications including industrial and aero gas turbines due to the reduction in fossil fuel CO2 and the improvement in energy supply security. The first part of this work investigated the performance of biodiesel as a fuel in low NOx combustors of the type used in industrial gas turbines. This work included comparison with kerosene and co-firing with natural gas and blends of kerosene/biodiesel. In the second phase of this work an aircraft gas turbine APU with diffusion combustion. This investigated the gaseous and particulate emissions using kerosene as a base fuel for comparison with several second generation biofuels, which covered a range of H/C and showed that emissions were correlated with the H/C. The third phase of the work was concerned with renewable or clean coal derived hydrogen combustion using a low NOx flame stabilizer for industrial power generation applications. For the industrial low NOx combustor work a radial swirler flame stabiliser was used. However, the high boiling point of B100 made operation in a premixed vane passage fuel injection mode impossible as ignition could not be achieved. The pilot fuel injector in the centre was the only fuel injection location that B100 would stabilise a flame, due to the central recirculation of burnt gases. A central 8 hole radially outward fuel injector was used as WME (B100) would not operate with radial vane passage fuel injection that is conventionally used for low NOx radial swirlers with natural gas. In the aero engine phase of the research, nine alternative fuels were tested and compared to conventional JetA1 fuel at idle and full power. The results showed that all fuels produced similar level of NOx compared to JetA1 and a slight reduction in CO. A remarkable reduction in UHC was observed at all conditions for higher H/C fuels. The results also show that there was a good correlation between fuels H/C ratio and particle concentrations, particle size and distributions characteristics. The hot idle produced ~20% less particles compare to the cold idle. The alternative fuel blends produced fewer particles than JetA1 fuel. The alternative source of renewable fuels for industrial power generation gas turbines is that of hydrogen derived from renewable or nuclear electricity or from coal or biomass gasification using the water gas shift reaction and CO2 solvent extraction to leave a pure hydrogen fuel. The key problem are in burning hydrogen in gas turbines is that of the increased NOx formation and the increased risk of flashback into the conventional premixing passages used in natural gas low NOx combustors. This work investigated a novel impinging jet configuration that had previously been used successfully with propane and kerosene fuels. It had no premixing so that there could be no flashback. However, the high reactivity of hydrogen did cause a problem with flame stabilization too close to the jet outlets. This was controlled by reducing the proportion of air added to the initial hydrogen jets. NOx emissions lower than alternative designs were demonstrated at simulated high power conditions. This was a practical combustion technique for high hydrogen content fuels with low NOx emissions and no flashback problems.
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Tongroon, Manida. "Combustion characteristics and in-cylinder process of CAI combustion with alcohol fuels." Thesis, Brunel University, 2010. http://bura.brunel.ac.uk/handle/2438/4501.

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Controlled auto-ignition (CAI) combustion in the gasoline engine has been extensively studied in the last several years due to its potential for simultaneous improvement in fuel consumption and exhaust emissions. At the same time, there has been increasing interest in the use of alternative fuels in order to reduce reliance on conventional fossil fuels. Therefore, this study has been carried out to investigate the effect of alcohol fuels on the combustion characteristics and in-cylinder processes of CAI combustion in a single cylinder gasoline engine. In order to study the effect of alcohol fuels, combustion characteristics were investigated by heat releases analysis in the first part. The combustion process was studied through flame structure and excited molecule by chemiluminescence imaging. Furthermore, in-cylinder gas composition was analysis by GC-MS to identify the auto-ignition reactions involved in the CAI combustion. In addition, the influence of spark-assisted ignition and injection timings were also studied. Alcohol fuels, in particular methanol, resulted in advanced auto-ignition and faster combustion than that of gasoline. In addition, their use could lead to substantially lower HC, NOX and CO exhaust emissions. Spark-assisted ignition assisted gasoline combustion by advancing ignition timing and initiating flame kernel at the centre of combustion chamber but it had marginal effect on alcohol fuels. Auto-ignition always took place at the perimeter of the chamber and occurred earlier with alcohol fuels. Fuel reforming reactions during the NVO period were observed and they had significant effect on alcohol combustion.
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Little, A. Tyler. "Analysis of alternative fuel combustion in a perfectly stirred reactor." Connect to resource, 2007. http://hdl.handle.net/1811/24514.

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Thesis (Honors)--Ohio State University, 2007.
Title from first page of PDF file. Document formatted into pages: contains xii, 63 p.; also includes graphics. Includes bibliographical references (p. 62-63). Available online via Ohio State University's Knowledge Bank.
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Bagdanavicius, Audrius. "Premixed combustion of alternative fuels under varying conditions of temperature and pressure." Thesis, Cardiff University, 2010. http://orca.cf.ac.uk/54231/.

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Temperature, pressure and CO2 and H2 addition to CH4 effects on turbulent and laminar burning velocity have been found and discussed. Novel turbulent burning velocity determination methods are presented and uncertainties have been discussed. Turbulent burning velocity correlation with nondimensional numbers have been found and flames structures have been analysed.
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Park, Sammy Ace. "Combustion instability and active control| Alternative fuels, augmentors, and modeling heat release." Thesis, University of Maryland, College Park, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10129882.

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Experimental and analytical studies were conducted to explore thermo-acoustic coupling during the onset of combustion instability in various air-breathing combustor configurations. These include a laboratory-scale 200-kW dump combustor and a 100-kW augmentor featuring a v-gutter flame holder. They were used to simulate main combustion chambers and afterburners in aero engines, respectively. The three primary themes of this work includes: 1) modeling heat release fluctuations for stability analysis, 2) conducting active combustion control with alternative fuels, and 3) demonstrating practical active control for augmentor instability suppression.

The phenomenon of combustion instabilities remains an unsolved problem in propulsion engines, mainly because of the difficulty in predicting the fluctuating component of heat release without extensive testing. A hybrid model was developed to describe both the temporal and spatial variations in dynamic heat release, using a separation of variables approach that requires only a limited amount of experimental data. The use of sinusoidal basis functions further reduced the amount of data required. When the mean heat release behavior is known, the only experimental data needed for detailed stability analysis is one instantaneous picture of heat release at the peak pressure phase. This model was successfully tested in the dump combustor experiments, reproducing the correct sign of the overall Rayleigh index as well as the remarkably accurate spatial distribution pattern of fluctuating heat release.

Active combustion control was explored for fuel-flexible combustor operation using twelve different jet fuels including bio-synthetic and Fischer-Tropsch types. Analysis done using an actuated spray combustion model revealed that the combustion response times of these fuels were similar. Combined with experimental spray characterizations, this suggested that controller performance should remain effective with various alternative fuels. Active control experiments validated this analysis while demonstrating 50-70\% reduction in the peak spectral amplitude. A new model augmentor was built and tested for combustion dynamics using schlieren and chemiluminescence techniques. Novel active control techniques including pulsed air injection were implemented and the results were compared with the pulsed fuel injection approach. The pulsed injection of secondary air worked just as effectively for suppressing the augmentor instability, setting up the possibility of more efficient actuation strategy.

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Zuks, Lincoln. "An evaluation of an alternative glycerol gasification, combustion and power generation system." Thesis, Zuks, Lincoln (2014) An evaluation of an alternative glycerol gasification, combustion and power generation system. Other thesis, Murdoch University, 2014. https://researchrepository.murdoch.edu.au/id/eprint/23529/.

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While great inroads have been made into finding alternate uses for the biodiesel waste glycerol, the projected growth in biodiesel production is likely to make it difficult for some producers to offload. This thesis report set out to evaluate the viability of a system which could go some way to solving this problem, while at the same time offsetting the cost of the primary production process. Aspen Plus was used to evaluate the thermodynamic feasibility of the proposed system. This modelling found, that after a couple of modifications, the system was viable from a thermodynamic standpoint. But, after systematically evaluating gasification, pyrolysis and steam reformation as possible means for converting glycerol into syngas, it was found that none of these systems, in their current form, would be suitable for making the system a reality. While it is true that these technologies are proven methods at a bench scale, an in depth literature review found a number of complicating factors which makes the conversion of glycerol into syngas an incredibly difficult task, one which is much more difficult than this investigation first anticipated. These findings cast doubt on such an idea becoming a reality in its current form. Fortunately, during the literature review process, a handful of recent studies where uncovered which looked at the co-gasification of crude glycerol with biomass. From the limited information available on the subject, it would seem that the co-gasification of glycerol and biomass has a promising future. The prospect of a simple system based on a proven technology which is able to deal with wastes from multiple sources along the biodiesel production process is an exciting prospect.
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Kashif, Muhammad. "Measurement of sooting tendencies of alternative fuels : application to primary reference fuels." Paris 6, 2013. http://www.theses.fr/2013PA066258.

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Un dispositif a été conçu et validé pour mesurer la fraction volumique de suie dans de flammes non-prémélangées méthane/air dopées en vapeurs d’hydrocarbures liquides. La quantification en fraction volumique de suie est obtenue en inversant les données d’extinction d’un faisceau laser à travers une flamme axisymétrique par l’algorithme nommé Onion- Peeling stabilisé par une régularisation de type Tikhonov. La mesure est ensuite convertie en un indice appelé Yield Sooting Index (YSI). La méthode a été appliquée pour comparer les tendances des de mélanges de n-heptane et d’iso-octane (Primary Reference Fuels (PRFs)) à produire de suie dans une flamme non-prémélangée axisymmétrique dopée en vapeur de PRF, en maintenant constante soit la concentration en vapeur, soit de l’énergie des vapeurs injectés. Une corrélation de second ordre a été établie pour prédire la variation d’YSI avec la teneur en iso-octane dans le PRF et la concentration en dioxyde de carbone dans l’écoulement oxydant annulaire. Les études réalisées sur cette flamme de laboratoire et les résultats obtenus ont une portée pratique et doivent permettre de prédire le comportement des combustibles considérés à former de suie en condition réelles
An optical diagnostics layout is designed and validated to measure soot volume fraction in methane/air diffusion flames doped with vapors of liquid hydrocarbons. Soot volume fraction is inferred from the inversion of integrated light extinction data using an Onion-peeling algorithm stabilized by a Tikhonov regularization method. This measurement is then converted into apparatus-independent Yield Sooting Index (YSI). The method has been applied to compare the sooting tendencies of PRFs in doped axisymmetric diffusion flames when keeping the concentration or energy of injected vapors constant. A second-order correlation modeling the variation of YSI with the mole fraction of iso-octane in PRF mixture and the proportion of carbon dioxide in the co-flowing oxidizer has been established using least-squares non-linear data-fitting to experimental data. These studies performed on laboratory flames and the results obtained are of practical importance and can be used to predict the sooting behavior of fuels under practical combustion environment
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Books on the topic "Alternative combustion"

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United States. Dept. of Energy. Office of Transportation Systems. and United States. National Aeronautics and Space Administration., eds. Gas turbine alternative fuels combustion characteristics. Washington, D.C: U.S. Dept. of Energy, Conservation and Renewable Energy, Office of Transportation Systems, 1989.

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Engineers, Society of Automotive, and SAE International Congress & Exposition (1995 : Detroit, Mich.), eds. Diesel engine combustion processes. Warrendale, PA: Society of Automotive Engineers, 1995.

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R, Ballal Dilip, ed. Gas turbine combustion: Alternative fuels and emissions. 3rd ed. Boca Raton: Taylor & Francis, 2010.

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Lefebvre, Arthur H. Gas turbine combustion: Alternative fuels and emissions. 3rd ed. Boca Raton: Taylor & Francis, 2010.

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United States. National Aeronautics and Space Administration., ed. Combustion characteristics of gas turbine alternative fuels. [Washington, DC: National Aeronautics and Space Administration, 1987.

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Singh, Akhilendra Pratap, Dhananjay Kumar, and Avinash Kumar Agarwal, eds. Alternative Fuels and Advanced Combustion Techniques as Sustainable Solutions for Internal Combustion Engines. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1513-9.

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Michigan. Legislative Service Bureau. Science and Technology Division., ed. Alternative fuels for the combustion engine: Final report. [Michigan]: Michigan Legislature, 1990.

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Alternative engines for road vehicles. Southampton, UK: Computational Mechanics Publications, 1994.

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Shukla, Pravesh Chandra, Giacomo Belgiorno, Gabriele Di Blasio, and Avinash Kumar Agarwal, eds. Alcohol as an Alternative Fuel for Internal Combustion Engines. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0931-2.

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Whitney, Kevin A. Determination of alternative fuels combustion products--phase 1 report. Golden, Colorado (1617 Cole Boulevard, Golden 80401-3393): National Renewable Energy Laboratory, 1997.

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Book chapters on the topic "Alternative combustion"

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Raghavan, Vasudevan. "Alternative Fuels." In Combustion Technology, 171–76. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-74621-6_7.

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Rao, G. Amba Prasad, and T. Karthikeya Sharma. "Alternative Combustion Concepts." In Engine Emission Control Technologies, 361–404. Includes bibliographical references and index.: Apple Academic Press, 2020. http://dx.doi.org/10.4324/9780429322228-9.

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Wallner, Thomas, and Scott A. Miers. "Internal Combustion Engines internal combustion engine , Alternative Fuels internal combustion engine alternative fuels for." In Encyclopedia of Sustainability Science and Technology, 5461–99. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_865.

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Wallner, Thomas, and Scott A. Miers. "Internal Combustion Engines internal combustion engine , Alternative Fuels internal combustion engine alternative fuels for." In Transportation Technologies for Sustainability, 629–66. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-5844-9_865.

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Kamiuchi, Naoto, and Koichi Eguchi. "Catalytic Combustion of Methane." In Catalysis for Alternative Energy Generation, 305–27. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-0344-9_8.

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Pal, Anuj, and Avinash Kumar Agarwal. "Hydrogen for Internal Combustion Engines." In Prospects of Alternative Transportation Fuels, 39–54. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-7518-6_4.

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Satsangi, Dev Prakash, Nachiketa Tiwari, and Avinash Kumar Agarwal. "Alcohols for Fueling Internal Combustion Engines." In Prospects of Alternative Transportation Fuels, 109–29. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-7518-6_7.

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Wallner, Thomas, and Scott A. Miers. "Internal Combustion Engines, Alternative Fuels for." In Electric, Hybrid, and Fuel Cell Vehicles, 27–66. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-0716-1492-1_865.

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Singh, Akhilendra P., and Avinash Kumar Agarwal. "Utilization of Alternative Fuels in Advanced Combustion Technologies." In Prospects of Alternative Transportation Fuels, 359–85. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-7518-6_15.

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Yang, Xinglin, Zongming Yang, Huabing Wen, Viktor Gorbov, Vira Mitienkova, and Serhiy Serbin. "Synthetic Coal-Based Fuels and Their Combustion." In Alternative Fuels in Ship Power Plants, 141–68. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4850-9_5.

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Conference papers on the topic "Alternative combustion"

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Weiskirch, C., M. Kaack, I. Blei, and P. Eilts. "Alternative Fuels for Alternative and Conventional Diesel Combustion Systems." In Powertrains, Fuels and Lubricants Meeting. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2008. http://dx.doi.org/10.4271/2008-01-2507.

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Stuttaford, Peter J. "Alternative Fuel Considerations for Gas Turbine Combustion." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27549.

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Gas turbines have the advantage of being able to operate on a wide range of fuels. Given the escalating cost of conventional fuel sources such as natural gas, there is increasing interest in, and implementation of, systems burning lower cost fuel gases. There are significant combustor performance effects when utilizing different fuels. Flame stability, emissions, durability, and combustion dynamics are critical combustion parameters which must be controlled when varying fuel constituents. Significant emphasis continues to be placed on the use of liquefied natural gas (LNG) as well as syngas derived from coal and petroleum coke. The elimination of carbon from gaseous coal based fuels also offers the possibility of burning hydrogen to reduce or eliminate carbon dioxide emissions. Existing stringent emissions permits must be met by power plants utilizing these different fuels. There is also a requirement for the flexible use of these fuels allowing power plants to switch real time between fuel sources using the same combustion hardware, without affecting commercial generating schedules. This highlights the requirement for fuel preparation and control skids, as well as robust combustion systems, for reliable plant operations. The objective of this work is to review fuel properties which affect combustion and consider the methods and tools used to characterize the subsequent combustion characteristics. The work focuses on gaseous fuel premixed combustion. A full scale high pressure combustion test stand was used to evaluate the effects of various gaseous fuels on given gas turbine combustor configurations. Data collected through the testing of natural gas containing heavy hydrocarbons, as might be expected from liquefied LNG or refinery offgas, and hydrogen based syngas fuel blends with natural gas to simulate various coal gas blends, is presented with conclusions drawn based upon the critical combustion parameters mentioned above. A methodology for fuel characterization and combustor qualification for the acceptable operation of gas turbine combustors on various gaseous fuels is discussed. The practical implementation of multi-fuel systems on commercially operating engines is also discussed, with emphasis on diluent free premixed systems.
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Almark, Matts, and Matti Hiltunen. "Alternative Bed Materials for High Alkali Fuels." In 18th International Conference on Fluidized Bed Combustion. ASMEDC, 2005. http://dx.doi.org/10.1115/fbc2005-78094.

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Fluidized bed combustion of high alkali fuels may cause agglomeration and defluidization of the bed as sodium and potassium react with quartz particles in the bed, forming alkali-silicate layers causing the particles to stick together. In certain cases the use of quartz free bed materials has been shown successful, like “Ofita” in the combustion of the residues from olive oil production in Spain. There are alternatives available to be used as quartz-free bed materials but some of them may be more expensive compared to natural sand. They are not always found in suitable form or particle sizes. Furthermore, the knowledge of the alternatives, and when it would beneficial to use them, is limited. The economics are not always favorable to using the alternative, effective but expensive bed materials since the build-up of harmful elements in bed usually can be avoided with sufficient make-up sand addition. A minimum level of make-up material addition is in any case necessary when combusting fuels with ashes that do not maintain the bed inventory. A study of minerals and materials available in Finland and elsewhere as possible bed make-up materials was carried out. The differences between these materials compared to quartz as a reference are investigated. The economics of the use of the alternative bed materials are discussed.
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Ghosh, Sujit, Tom Risley, David Sobolewski, William Welch, and Sherry Williams. "Marine Alternative Fuel Performance Testing." In ASME 2012 Internal Combustion Engine Division Spring Technical Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ices2012-81239.

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As part of the U.S. Maritime Administration (MARAD) marine application of alternative fuel initiative, the U.S. Navy provided neat hydrotreated renewable diesel (HRD), derived from the hydroprocessing of algal oils, for operational and exhaust emission testing onboard the T/S STATE OF MICHIGAN. This vessel has diesel-electric propulsion with four caterpillar D-398 compression ignition engines; one of these ship service diesel engines was selected as the test engine. The diesel generator sets power both the propulsion motors propelling the ship and provide the electrical power for the hotel loads of the ship. Ultra-low sulfur diesel (ULSD) was blended with the neat HRD fuel in a 50/50-by-volume blend and tested for over 440 hours on the vessel. Exhaust emissions testing was performed while underway on Lake Michigan using the baseline ULSD assessed earlier. A similar profile was run using the blended test fuel. Emission testing was conducted using the ISO 8178 (D2) test cycle. When emissions testing was completed a series of underway and pierside test runs were conducted to accumulate the remaining engine hours, After all testing, the engine conditions were assessed again using a combination of visual inspection and oil analysis. The remainder of the test fuel will be used to conduct a long-term stability test. The setup, test, and results of this testing, currently underway, are reported here with a discussion of MARAD’s alternative fuels test initiative.
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Mordaunt, Christopher J., Seong-Young Lee, Vickey B. Kalaskar, Amy Mensch, Robert J. Santoro, and Harold H. Schobert. "Further Studies of Alternative Jet Fuels." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12940.

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Future gas turbine technology may require that liquid fuels play an additional role as a coolant over a wide range of combustion-chamber operating conditions. Additionally, in order to satisfy greater efficiency and performance goals, gas turbine operating temperatures and pressures are steadily increasing. Given the desire to reduce dependence on foreign fuels and that current hydrocarbon fuels, such as JP-8, are prone to thermal or catalytic decomposition at such elevated conditions, there is great interest in utilizing alternatively-derived liquid fuels. The successful development of a versatile, multiple-use fuel must achieve the desired operational characteristics of high combustion efficiency, excellent combustion stability, acceptable pollutant emission levels, and compatibility with current engine seals. Combustion instability represents a critical area of concern for future gas turbine engines that may burn alternative fuels. Combustion instability is characterized by large, unsteady combustion-chamber pressure oscillations which occur at the characteristic frequencies associated with the acoustic modes of the combustor. The occurrence of combustion-driven instabilities is closely tied to the details of the injection and fuel-air mixing processes, the heat release characteristics, and the degree to which heat release rate couples with the acoustics of the combustor. Additionally, the efficiency and emissions characteristics are also largely determined by the fuel injection, atomization, and mixing processes associated with combustion. As fuel properties and composition vary, effects on combustion efficiency and emissions, especially the formation of nitrogen oxides (NOx) and soot, can be expected. Therefore, changes in these processes attributed to differing fuel properties can have a dramatic affect on the combustion characteristics and require careful consideration through a well-coordinated combustion research program. The current study investigates whether a coal-based aviation fuel, JP-900, which has the required thermal stability attributes, also satisfies the engine combustion requirements. Additionally, a Fischer-Tropsch fuel and a volumetric 50/50 blend of JP-8 and the Fischer-Tropsch fuel are studied. Previous studies of coal-based fuels have shown that soot production can be a significant problem due to the higher aromatic content than found in conventional fuels. However, improvements in the fuel refinement processes have helped reduce this problem. Experiments included in this current research effort involve studying the combustion instability patterns, the pollutant emission levels, and sooting propensity of coal-based and Fischer-Tropsch fuels as compared to JP-8. The experimental setup consists of an optically-accessible model gas turbine dump combustor, with provisions for laser extinction measurements, which utilizes a Delavan hollow-cone pressure atomizer for fuel injection.
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Temme, Jacob, Michael Tess, Chol-bum M. Kweon, and Vincent Coburn. "Alternative Jet Fuel Spray and Combustion at Intermittent-Combustion Engine Conditions." In 52nd AIAA/SAE/ASEE Joint Propulsion Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-4689.

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Azami, Muhammad Hanafi, and Mark Savill. "Comparative Analysis of Alternative Fuels in Detonation Combustion." In 52nd AIAA/SAE/ASEE Joint Propulsion Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-5104.

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Edwards, Tim, Cliff Moses, and Fred Dryer. "Evaluation of Combustion Performance of Alternative Aviation Fuels." In 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2010. http://dx.doi.org/10.2514/6.2010-7155.

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Rodriguez, Juan, Sophonias Teshome, Hann-Shin Mao, Alec Pezeshkian, Owen Smith, and Ann Karagozian. "Acoustically Driven Droplet Combustion with Alternative Liquid Fuels." In 46th AIAA Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2008. http://dx.doi.org/10.2514/6.2008-1002.

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Fackler, K. Boyd, Megan Karalus, Igor Novosselov, John Kramlich, and Philip Malte. "NOx Behavior for Lean-Premixed Combustion of Alternative Gaseous Fuels." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-42069.

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Gaseous fuels other than pipeline natural gas are of interest in high-intensity premixed combustors (e.g., lean-premixed gas turbine combustors) as a means of broadening the range of potential fuel resources and increasing the utilization of alternative fuel gases. An area of key interest is the change in emissions that accompanies the replacement of a fuel. The work reported here is an experimental and modeling effort aimed at determining the changes in NOx emission that accompany the use of alternative fuels. Controlling oxides of nitrogen (NOx) from combustion sources is essential in non-attainment areas. Lean-premixed combustion eliminates most of the thermal NOx emission, but is still subject to small, though significant amounts of NOx formed by the complexities of free radical chemistry in the turbulent flames of most combustion systems. Understanding these small amounts of NOx, and how their formation is altered by fuel composition, is the objective of this paper. We explore how NOx is formed in high-intensity, lean-premixed flames of alternative gaseous fuels. This is based on laboratory experiments and interpretation by chemical reactor modeling. Methane is used as the reference fuel. Combustion temperature is maintained the same for all fuels so that the effect of fuel composition on NOx can be studied without the complicating influence of changing temperature. Also, the combustion reactor residence time is maintained nearly constant. When methane containing nitrogen and carbon dioxide (e.g., landfill gas) is burned, NOx increases since the fuel/air ratio is enriched in order to maintain combustion temperature. When fuels of increasing C/H ratio are burned leading to higher levels of carbon monoxide (CO) in the flame, or when the fuel contains CO, the free radicals made as the CO oxidizes cause the NOx to increase. In these cases, the change from high-methane natural gas to alternative gaseous fuel causes the NOx to increase. However, when hydrogen is added to the methane, the NOx may increase or decrease, depending on the combustor wall heat loss. In our work, in which combustor wall heat loss is present, hydrogen addition deceases the NOx. This observation is compared to the literature. Additionally, minimum NOx emission is examined by comparing the present results to the findings of Leonard and Stegmaier.
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Reports on the topic "Alternative combustion"

1

Pitz, W., and C. Westbrook. The Impact of Alternative Fuels on Combustion Kinetics. Office of Scientific and Technical Information (OSTI), July 2009. http://dx.doi.org/10.2172/964520.

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Whitney, K. A. Determination of alternative fuels combustion products: Phase 3 report. Office of Scientific and Technical Information (OSTI), December 1997. http://dx.doi.org/10.2172/563231.

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Whitney, Keith A. Determination of Alternative Fuels Combustion Products: Phase I Report. Office of Scientific and Technical Information (OSTI), September 1997. http://dx.doi.org/10.2172/537285.

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Whitney, K. A. Determination of alternative fuels combustion products: Phase 2 final report. Office of Scientific and Technical Information (OSTI), June 1997. http://dx.doi.org/10.2172/516016.

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Brown, D. R., S. Katipamula, and J. H. Konynenbelt. A comparative assessment of alternative combustion turbine inlet air cooling system. Office of Scientific and Technical Information (OSTI), February 1996. http://dx.doi.org/10.2172/211362.

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Author, Not Given. Origin and Fate of Organic Pollutants from the Combustion of Alternative Fuels. Office of Scientific and Technical Information (OSTI), June 1995. http://dx.doi.org/10.2172/72932.

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Taylor, P. H., B. Dellinger, and S. K. Sidhu. The origin of organic pollutants from the combustion of alternative fuels: Phase IV report. Office of Scientific and Technical Information (OSTI), June 1997. http://dx.doi.org/10.2172/516001.

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Sidhu, S., J. Graham, P. Taylor, and B. Dellinger. The origin of organic pollutants from the combustion of alternative fuels: Phase 5/6 report. Office of Scientific and Technical Information (OSTI), May 1998. http://dx.doi.org/10.2172/653995.

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Legena, Henry, Brittney McKenzie, Aria Goodridge, Karyl Pivott, Joshua Austin, Kristen Lynch, Shamika Spencer, et al. Experimental Evidence on the Use of Biomethane from Rum Distillery Waste and Sargassum Seaweed as an Alternative Fuel for Transportation in Barbados. Inter-American Development Bank, May 2021. http://dx.doi.org/10.18235/0003288.

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This paper presents an alternative to the current use of gasoline and diesel for transportation in Barbados. By relying on experimental evidence, it shows that biomethane emanating from the combination of Sargassum seaweed that is found on the seashores of the country with wastewater from rum distillery production can be used to produce an alternative transportation fuel. If implemented successfully, this alternative combustion method can avoid as much as 1 million metric tons of CO2 emissions every year in the country. These findings have important implications for policymakers. First, they can contribute to the national objective of becoming fossil fuel free by 2030 and diversifying the energy matrix. Second, this alternative fuel can improve resilience to natural catastrophes, complementing the transition to renewables and diversification of the sector. Third, the impact on the tourism industry is expected to be high and positive, as the Sargassum seaweed has been declared a national emergency due to its prevalence on beach tourism spots.
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Taylor, P. H., and B. Dellinger. The origin and fate of organic pollutants from the combustion of alternative fuels: Phase 3 report. Final report, May 1, 1995--April 30, 1996. Office of Scientific and Technical Information (OSTI), July 1996. http://dx.doi.org/10.2172/378256.

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