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This paper investigates the effects associated with applying both positive and negative DC electric fields to premixed CH4/N2/O2 spherically expanding flames with excess air ratio λ=1.2/1.4/1.6 in a constant volume combustion chamber. The results show that, both positive and negative DC electric fields enhance the combustion rates. Firstly, the mean flame propagation speed increases in the electric...
Steam explosion pretreatments was used to improve the anaerobic biodegradability of Miscanthus lutarioriparius (M. lutarioriparius). The pretreatments were carried out under five different conditions: L1 (0.5MPa 153°C 5min), L2 (1.0MPa 180°C 5min), L3 (1.5MPa 198°C 3min), L4 (1.5MPa 198°C 5min) and L5 (1.5MPa 198°C 10min). The biochemical methane potential (BMP) of raw M. lutarioriparius sample was...
Bio-energy production from lignocelluloses biomass has gained a lot of interest in recent years. Miscanthus sp. are high lignocelluloses biomass yielding with relatively high carbohydrate content cultivable on different soils and under climatic conditions. However, the lignocellulosic nature means that cellulose and hemicellulose are cover by lignin network that might limit hydrolysis. In this study,...
In order to study the effects of electric field intensity and distribution on flame propagation speed, the paper investigated the flame propagation of premixed CH4/O2/N2 mixtures under direct-current (DC) electric fields at an excess air ratio of 1.4. Different high-voltage electrodes were chosen in the experiment in two aspects: electrodes size (the outer-diameter of high-voltage electrodes) and...
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