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Oxy-fuel combustion of coal and biomass blends

Riaza, J.; Gil, M.V.; Álvarez, L.; Pevida, C.; Pis, J.J.; … - In: Energy 41 (2012) 1, pp. 429-435

The ignition temperature, burnout and NO emissions of blends of a semi-anthracite and a high-volatile bituminous coal … increase in the temperature of ignition and a decrease in the burnout value. When the O2 concentration was increased to 30 and … 35%, the temperature of ignition was lower and the burnout value was higher than in air conditions. A significant …

Persistent link: https://www.econbiz.de/10011055847

Kinetic models for the oxy-fuel combustion of coal and coal/biomass blend chars obtained in N2 and CO2 atmospheres

Gil, M.V.; Riaza, J.; Álvarez, L.; Pevida, C.; Pis, J.J.; … - In: Energy 48 (2012) 1, pp. 510-518

The thermal reactivity and kinetics of five coal chars, a biomass char, and two coal/biomass char blends in an oxy-fuel combustion atmosphere (30%O2–70%CO2) were studied using the non-isothermal thermogravimetric method at three heating rates. Fuel chars were obtained by devolatilization in an...

Persistent link: https://www.econbiz.de/10011055816

Oxy-fuel combustion kinetics and morphology of coal chars obtained in N2 and CO2 atmospheres in an entrained flow reactor

Gil, M.V.; Riaza, J.; Álvarez, L.; Pevida, C.; Pis, J.J.; … - In: Applied Energy 91 (2012) 1, pp. 67-74

The thermal reactivity and kinetics of four coal chars (HVN, UM, SAB and BA) in an oxy-fuel combustion atmosphere (30%O2–70%CO2) were studied using a thermobalance. The coal chars were obtained by devolatilization in an entrained flow reactor (EFR) at 1000°C for 2.5s under 100% N2 and CO2...

Persistent link: https://www.econbiz.de/10011040857

Effect of H2O on the combustion characteristics of pulverized coal in O2/CO2 atmosphere

Yi, Baojun; Zhang, Liqi; Huang, Fang; Mao, Zhihui; … - In: Applied Energy 132 (2014) C, pp. 349-357

pulverized coal combustion behaviour in O2/CO2 atmosphere. The ignition temperature, burnout temperature and comprehensive … O2/CO2 atmosphere, leading to a greater ignition delay, faster burnout and higher comprehensive reactivity. These …

Persistent link: https://www.econbiz.de/10010930647

LES and RANS modeling of pulverized coal combustion in swirl burner for air and oxy-combustion technologies

Warzecha, Piotr; Boguslawski, Andrzej - In: Energy 66 (2014) C, pp. 732-743

Combustion of pulverized coal in oxy-combustion technology is one of the effective ways to reduce the emission of greenhouse gases into the atmosphere. The process of transition from conventional combustion in air to the oxy-combustion technology, however, requires a thorough investigations of...

Persistent link: https://www.econbiz.de/10010808603

Power generation from pulverized coal in China

Yang, Yongping; Guo, Xiyan; Wang, Ningling - In: Energy 35 (2010) 11, pp. 4336-4348

The growth of power generation in China since the 1980s has been reviewed by analyzing the relationship between demand and supply of power, the increasing in installed capacity, and the variations in power-resource structure. Currently, the power generation from pulverized coal (PC) is dominant...

Persistent link: https://www.econbiz.de/10010809417

Influence of forward scattering on prediction of temperature and radiation fields inside the pulverized coal furnace

Crnomarkovic, Nenad; Sijercic, Miroslav; Belosevic, Srdjan - In: Energy 45 (2012) 1, pp. 160-168

A possibility of simplification of the scattering phase function of a pulverized coal flame was analyzed in the paper. It was showed that the type of radiation scattering of a pulverized coal flame is between two limiting cases: isotropic and forward scattering. A comprehensive mathematical...

Persistent link: https://www.econbiz.de/10010810913

Experimental investigation into pulverized-coal combustion performance and NO formation using sub-stoichiometric ratios

Chen, Zhichao; Wang, Zhenwang; Li, Zhengqi; Xie, Yiquan; … - In: Energy 73 (2014) C, pp. 844-855

burnout rate, and carbon and nitrogen release rates were measured at different positions in the test facility. A method for …-stoichiometric ratios. Decreasing the stoichiometric ratio did not significantly affect the ignition performance of the burner, but the …

Persistent link: https://www.econbiz.de/10011054151

Kinetic characteristics of pulverized coal combustion in the two-phase flow

Li, Zhengang; Guo, Zhancheng; Gong, Xuzhong; Tang, Huiqing - In: Energy 55 (2013) C, pp. 585-593

The kinetic characteristics of pulverized coal combustion in the two-phase flow were studied using the micro fluidized bed kinetic analyzer (MFBKA) so as to get closer to the actual working condition. On the basis of the performance of CO and CO2 emissions, the effect of various operating...

Persistent link: https://www.econbiz.de/10011054572

Hazards Response of Energetic Materials - Initiation Mechanisms, Experimental Characterization, and Development of Predictive Capability

Maienschein, J; Nichols III, A; Reaugh, J; McClelland, M; … - 2008

characterize the necessary material parameters, including thermal ignition, thermal and mechanical properties, fracture …

Persistent link: https://www.econbiz.de/10009436039