Results 21 to 30 of about 4,693 (193)
Effects of particle size distribution on the explosion severity of coal dust
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2019 The effects of particle size distribution (PSD) on coal dust explosion severity were investigated using a 20 L vessel. The severity was evaluated by the maximum explosion pressure (Pex), the maximum rate of pressure rise ((dP/dt)ex), and the time spans (t1, t2) between ignition and Pex and between ignition and (dP/dt)ex during a trial. These parameters
Jiangshi Zhang +3 more
openaire +1 more source
Analysis on the Characteristics of PM2.5 Emissions from Coal-fired Power Plants in Jilin Province [PDF]
E3S Web of Conferences, 2023 The thermal power industry is the largest coal consumer, and the contribution of its air pollutants to PM2.5 has become a hot topic of public concern, which is worthy of in-depth study.
Liu Yi +4 more
doaj +1 more source
The dependence of particle size on cell toxicity for modern mining dust
Scientific Reports, 2023 Progressive massive pulmonary fibrosis among coal miners has unexpectedly increased. It would likely due to the greater generation of smaller rock and coal particles produced by powerful equipment used in modern mines.
Yi-Hsuan Chen +7 more
doaj +1 more source
Rudarsko-geološko-naftni zbornik, 2019 This study investigates the effect of variations of coal dust particles size on the rate of burning of coal dust particles in a 2-liter closed chamber. Coal dust was selected from three different mines with different sizes (149μm, 125μm, 105μm, 74μm, 63μm, 53μm, 44μm, 37μm) for explosion testing in a closed chamber of 2-liters.
Hadis Moradi +3 more
openaire +2 more sources
矿业科学学报, 2022 In order to reduce the harm of dust dispersion in open-pit coal mine to the mining environment and the damage of personnel and equipment, this paper carried out the research on dust migration, distribution and treatment in open-pit coal mine by taking ...
Zhao Hongbao +5 more
doaj +1 more source
The influence of the coal dust composition on the propagation speed of the combustion front of the coal dust with an inhomogeneous particle distribution in the air [PDF]
Компьютерные исследования и моделирование, 2018 The problem of the combustion of a gas suspension with an inhomogeneous distribution of particles over space occurs exists for the coal dust suspension combustion in combustion chambers and burners.
Kseniya Mikhailovna Moiseeva +1 more
doaj +1 more source
International Journal of Coal Science & Technology, 2020 Coal dust explosion accidents often cause substantial property damage and casualties and frequently involve nano-sized coal dust. In order to study the impact of nano-sized coal on coal dust and methane–coal dust explosions, a pipe test apparatus was ...
Bo Tan, Huilin Liu, Bin Xu, Tian Wang
doaj +1 more source
Advanced Science, EarlyView.Condensates at synapses organize synaptic vesicles (SVs) and are crucial for efficient neurotransmitter release, yet how RNA contributes to this mesoscale architecture remains poorly understood. Here we uncover that RNA modulates synapsin–driven condensates.
Branislava Rankovic +21 more
wiley +1 more source
Research on Methane Measurement and Interference Factors in Coal Mines
Sensors, 2022 The detection of methane has always been an important part of coal mine safety. In order to improve the methane measurement accuracy in coal mines and to determine the influence of environmental interference factors on the measurement results, we ...
Xiushan Wu +3 more
doaj +1 more source
Challenges and enablers in fluidization technology
AIChE Journal, EarlyView.Abstract Gas–solid fluidized beds provide excellent heat and mass transfer for high‐throughput operations from coating to catalytic conversion and underpin emerging low‐carbon technologies. Yet industrial reliability, scale‐up, and control lag scientific understanding, particularly as finer, stickier, and more variable feedstocks increasingly challenge
J. Ruud van Ommen, Jia Wei Chew
wiley +1 more source