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On the use of single-film models to describe the oxy-fuel combustion of pulverized coal char
Geier, M.; Shaddix, C.R.; Davis, K.A.; Shim, H.-S. - In: Applied Energy 93 (2012) C, pp. 675-679
Computational fluid dynamic (CFD) simulations traditionally rely on the computational efficiency of single-film global kinetic oxidation models to predict char particle temperatures and char conversion rates in pulverized coal boilers. In oxy-fuel combustion with flue gas recirculation (FGR), as...
Persistent link: https://www.econbiz.de/10011040404
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Assessment of oxy-fuel, pre- and post-combustion-based carbon capture for future IGCC plants
Kunze, Christian; Spliethoff, Hartmut - In: Applied Energy 94 (2012) C, pp. 109-116
Environmental damage due to the emission of greenhouse gases from conventional coal-based power plants is a growing concern. Various carbon capture strategies to minimize CO2 emissions are currently being investigated. Unfortunately, the efficiency drop due to de-carbonization is still...
Persistent link: https://www.econbiz.de/10010571955
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Experiences and results on a 0.8MWth oxy-fuel operation pilot-scale circulating fluidized bed
Tan, Y.; Jia, L.; Wu, Y.; Anthony, E.J. - In: Applied Energy 92 (2012) C, pp. 343-347
Oxy-fuel circulating fluidized bed combustion (CFBC) is an alternate technology to oxy-fuel pulverized combustion (PC), which has a number of advantages that can often make it a better choice for CO2 capture. This paper presents experimental results and operating experiences from a 0.8MWth...
Persistent link: https://www.econbiz.de/10010571992
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A kinetic study of NO formation during oxy-fuel combustion of pyridine
Wang, B.; Sun, L.S.; Su, S.; Xiang, J.; Hu, S.; Fei, H. - In: Applied Energy 92 (2012) C, pp. 361-368
In this work, pyridine-N was converted into NO and N2 by using a flow reactor and the dominant NO evolution pathways were identified by means of a kinetic modeling under O2/CO2 atmosphere in temperature range of 1073–1473K for different stoichiometries. The experimental results indicated...
Persistent link: https://www.econbiz.de/10011041112
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Process design and performance analysis of a Staged, Pressurized Oxy-Combustion (SPOC) power plant for carbon capture
Gopan, Akshay; Kumfer, Benjamin M.; Phillips, Jeffrey; … - In: Applied Energy 125 (2014) C, pp. 179-188
Support for carbon capture, utilization and storage (CCUS) for coal power plants is limited, to some extent, by the high cost of electricity associated with available technologies. While a comparison of different capture methods favors oxy-combustion technology, the cost is still prohibitively...
Persistent link: https://www.econbiz.de/10010776574
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Techno-economic comparison between different technologies for a CCS power generation plant integrated with a sub-bituminous coal mine in Italy
Pettinau, Alberto; Ferrara, Francesca; Amorino, Carlo - In: Applied Energy 99 (2012) C, pp. 32-39
The increasing interest in the development of carbon capture and storage (CCS) technologies requires a great effort to reduce capital and operating costs and to demonstrate the potential application of these kind of systems on the commercial power generation plants.
Persistent link: https://www.econbiz.de/10010594053
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Performance evaluation of integrated gasification solid oxide fuel cell/gas turbine systems including carbon dioxide capture
Park, Sung Ku; Ahn, Ji-Ho; Kim, Tong Seop - In: Applied Energy 88 (2011) 9, pp. 2976-2987
In this study, system layouts for integrated gasification solid oxide fuel cell/gas turbine (IG-SOFC/GT) systems were proposed and their performance was comparatively evaluated. A baseline IGCC was simulated, and the calculation models were validated. Based on the IGCC system, two IG-SOFC/GT...
Persistent link: https://www.econbiz.de/10010572062
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Two-dimensional flame temperature and emissivity measurements of pulverized oxy-coal flames
Draper, Teri Snow; Zeltner, Darrel; Tree, Dale R.; Xue, Yuan - In: Applied Energy 95 (2012) C, pp. 38-44
A broadband, RGB, two-color pyrometry technique for measuring the flame temperature and total emissivity of a two-dimensional image of a coal flame has been developed and used on an oxy-coal flame. The method uses a single, relatively inexpensive, RGB, digital camera. The camera software permits...
Persistent link: https://www.econbiz.de/10010576234
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Major and trace elements in coal bottom ash at different oxy coal combustion conditions
Oboirien, B.O.; Thulari, V.; North, B.C. - In: Applied Energy 129 (2014) C, pp. 207-216
This paper presents a detailed study on the effect of temperature on the concentration of 27 major and trace elements in bottom ash generated from oxy fuel-combustion. The major elements are Na, Mg, Al, K, Ca and Fe and the minor and trace elements are Li, Cr, V, Mn, Sr, Ba, Cu, Zn, Rb, Co, Ni,...
Persistent link: https://www.econbiz.de/10011041111
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Experimental study on combustion and NOx emissions for a down-fired supercritical boiler with multiple-injection multiple-staging technology without overfire air
Kuang, Min; Li, Zhengqi; Liu, Chunlong; Zhu, Qunyi - In: Applied Energy 106 (2013) C, pp. 254-261
A deep-air-staging combustion technology was previously developed to achieve reduction in NOx emissions and to … combustion and NOx emissions characteristics within the furnace, full-load industrial-size experiments were performed at … concentrations in the near wing-wall region, carbon content in fly ash, and NOx emissions. As expected, the furnace performance …
Persistent link: https://www.econbiz.de/10010662368