Results 51 to 60 of about 39,493 (184)

Increasing Spontaneous Combustion Risk While Reducing the Coal Particle Size [PDF]

E3S Web of Conferences, 2019
Extraction, storage and transportation of coal are complicated by the danger of spontaneous combustion centers due to toxic gases emission. At various technological processes, the formation of clusters consisting of coal particles of various sizes is ...
Portola Vyacheslav, Lee Hi Un, Botvenko Denis, Ludzish Vladimir, Pavlov Arhip   +4 more
doaj   +1 more source

Highly Efficient and Environmentally Stable Radiative Cooling Fabric: Integrating Photoluminescence and Hierarchical Core–Shell Fibers

Advanced Science, EarlyView.
A scalable radiative cooling fabric engineered with a multi‐layer assembly core–shell structure and integrated photoluminescent materials is reported. The fabric exhibits remarkable environmental stability, including UV resistance, mechanical durability, hydrophobicity, stain resistance, thermal stability, and flame retardancy, demonstrating its ...
Hongtao Liu, Hui Li, Yining Wang, Wei Sun, Zhuan Chen, Yongping Hou, Yongmei Zheng, Xuejian Chen, Bin Yu   +8 more
wiley   +1 more source

A novel method of pure oxy-fuel circulating fluidized bed combustion with zero recirculation flue gas : experimental validation

, 2018
Applying oxy-fuel combustion requires more advanced combustion control methods to avoid inadmissible high flam temperature. In fluidized beds and pulverized unites, enhanced heat transfer and recirculation flue gas are used.
Mahanta, P., Saha, U.K., Zayoud, Azd
core   +1 more source

Evaluation of the Risk Factors on Coal Dust Explosion in Warehouse

MATEC Web of Conferences, 2016
Coal has been one of the major energy sources in the world. Many industries use coal as a main fuel. A coal dust explosion is one of the main hazards of coal utilization because of its massive damage.
Chanthaphasouk Latana, Maneeintr Kreangkrai, Meechumna Pinyo, Luengwattanapong Suteera, Poonjarernsilp Chantamanee   +4 more
doaj   +1 more source

Effects of Spray Surfactant and Particle Charge on Respirable Coal Dust Capture

Safety and Health at Work, 2017
Background: Surfactant-containing water sprays are commonly used in coal mines to collect dust. This study investigates the dust collection performance of different surfactant types for a range of coal dust particle sizes and charges. Methods: Bituminous
Mei W. Tessum, Peter C. Raynor
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

Ignition of Deflagration and Detonation Ahead of the Flame due to Radiative Preheating of Suspended Micro Particles [PDF]

, 2015
We study a flame propagating in the gaseous combustible mixture with suspended inert particles. The gas is assumed to be transparent for the radiation emitted by the combustion products, while particles absorb and re-emit the radiation. Thermal radiation
Ivanov, M. F., Kiverin, A. D., Liberman, M. A.   +2 more
core  

Particle correlated characteristics of coal rock crushed by disc cutters

矿业科学学报
The morphology, particle size distribution and dust production of crushed coal rock formed by the interaction between mechanical cutting tools and coal rock are crucial indicators that reflect rock breaking efficiency and operation safety.
XU Peng, LIU Chunsheng, CHENG Shuo, DANG Zhenqian   +3 more
doaj   +1 more source

CFD modeling to study the effect of particle size on dispersion in 20l explosion chamber: An overview

International Journal of Mining Science and Technology, 2020
Mine disasters occur predominantly due to methane or coal dust explosion or a combination of both. Among the top ten worst coal mine disasters in India, nine are due to coal dust explosion. The current paper describes a general overview of the parameters
Santosh Kumar Ray, Niroj Kumar Mohalik, Asfar Mobin Khan, Debashish Mishra, Nikhil Kumar Varma, Jai Krishna Pandey, Pradeep Kumar Singh   +6 more
doaj   +1 more source

Respirable Dust Exposure in Western Australian Mining: Trends, Variability, and Implications for Occupational Health

American Journal of Industrial Medicine, EarlyView.
ABSTRACT Background Mining workers are exposed to a range of respiratory hazards, including respirable dust. While exposure to respirable crystalline silica in the mining industry has been found to be common, less is known about trends in measured levels of exposure to respirable dust overall.
Renee N. Carey, Susan Peters, Nicholas de Klerk, Fraser Brims, Peter Franklin   +4 more
wiley   +1 more source