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Fuel spray and atomization characteristics play an important role in the performance of internal combustion engines and many applications of industry. In drop aerobreakup, there are two main breakup modes: general bag breakup and shear breakup, which are induced by Rayleigh-Taylor instability and Kelvin-Helmholtz instability, respectively. Influence of surfactant on drop deformation and breakup is...
The Late Permian Da-long Formation shale in southern China is regarded asa shale gas reservoir target. However, the lack of fundamental data for shale gas reservoirs increases the difficulty of gas exploration. To understand the pore structure characteristics of these shales, a series of experiments was conducted on Da-long Formation samples collected from the Shangsi Section in the Guangyuan area...
The lower heating value (LHV, also called net calorific value, NCV) of the coal entering the furnace is one of the most important variables for process optimization. However, in most cases, it is not online measurable in coal-fired power plants. In this paper, an online identification approach of the LHV is proposed based on the boiler-side whole process models together with the real-time data acquired...
The study was undertaken to investigate the effect of coal rank on dielectric properties, through structural differences of various coal chars. Chars from three different coals were prepared in the temperature range 850–1600°C, and dielectric properties were determined by a vector network analyzer in the 2–18GHz frequency range. Crystalline structure of char samples was characterized using X-ray diffraction,...
For studying the influence of the structural evolution on the dielectric properties, X-ray diffraction and Raman spectroscopy were used to examine the phase and the degree of crystallite structure of coal chars prepared in the temperature range of 850–1600°C. Additionally, structural changes were visualized by high-resolution transmission electron microscopy. The dielectric properties were measured...
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