Results 31 to 40 of about 166,116,027 (191)

Comparative study of the explosion pressure characteristics of micro- and nano-sized coal dust and methane–coal dust mixtures in a pipe

open access: yesInternational 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

Graphene Materials for Sustainable Energy Applications: A Contemporary Perspective

open access: yesCarbon Energy, EarlyView.
ABSTRACT Graphene has garnered significant attention as a promising material with great potential for contributing to sustainable energy initiatives, such as RE100 (100% renewable energy initiative) and CF100 (100% carbon‐free initiative). This review aims to explore the potential of graphene for advancing renewable energy applications by highlighting
Niraj Kumar   +3 more
wiley   +1 more source

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

open access: yesSafety 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

Research on Methane Measurement and Interference Factors in Coal Mines

open access: yesSensors, 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

Selective Non‐Catalytic Reduction of NOx in the Exhaust Gas of Small Wood Gasification Boilers

open access: yesChemie Ingenieur Technik, EarlyView.
Kinetic studies of the SNCR reaction were conducted to investigate NOx reduction in the exhaust gas of small‐scale wood gasification boilers. Both the experimental results and the derived global kinetic model indicate that SNCR can achieve a significant reduction in NOx emissions under typical operating conditions. ABSTRACT The gas‐phase reaction of NO
Alexander Groß, Sven Kureti
wiley   +1 more source

Characteristics of Coal Dust Deposition in Boiler Tail Gas Pipelines [PDF]

open access: yesMATEC Web of Conferences
Coal dust deposition in boiler tail gas pipelines can significantly affect boilers’ thermal and energy efficiency. This study investigates the deposition characteristics of coal dust particles in boiler tail gas tubes in variable cross-section tubes ...
Liu Hui quan, Wang Liu, Lu Hao
doaj   +3 more sources

Evaluation of the Risk Factors on Coal Dust Explosion in Warehouse

open access: yesMATEC 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   +4 more
doaj   +1 more source

Progress, Challenges, and Outlook for Sodium‐Ion Battery Recycling

open access: yesCleanMat, EarlyView.
This review highlights the progress and challenges of sodium‐ion batteries (SIBs) recycling. It introduces the main material systems of SIBs and their degradation, outlines economic, technical, and environmental requirements, and evaluates four major strategies: pretreatment, pyrometallurgy, hydrometallurgy, and direct regeneration.
Yihao Shen   +3 more
wiley   +1 more source

Particle correlated characteristics of coal rock crushed by disc cutters

open access: yes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   +3 more
doaj   +1 more source

Research on secondary explosion characteristic of coal dust

open access: yesGong-kuang zidonghua, 2018
Influence of concentration, particle size and ignition energy of coal dust on secondary explosion characteristic of coal dust were studied by use of 20 L spherical explosion device, and the secondary explosion characteristic of coal dust was compared ...
LIU Haoxiong   +5 more
doaj   +1 more source

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