Results 61 to 70 of about 34,944 (257)

EXPERIMENTAL STUDY OF THE EFFECTS OF COAL DUST PARTICLE SIZE ON LAMINAR BURNING VELOCITY IN A MIXTURE OF COAL DUST AND METHAN

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.
Hadis Moradi, Farhang Sereshki, Mohammad Ataei, Mohsen Nazari   +3 more
doaj   +1 more source

Improving the efficiency of blasting operations in mines with the help of emulsion explosives [PDF]

, 2018
Purpose. To improve the efficiency of blasting operations in mines taking into consideration the upgrading of equipment used to charge blastholes as well as application of high-productive mining equipment of new generation. Methods.
Lyashenko, V, Nebohin, V, Vorob’ev, A, Vorob’ev, K   +3 more
core   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

Deep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu, Manchao He, Jun Yang, Yubing Gao, Qiang Fu, Qing Ma, Yajun Wang   +6 more
wiley   +1 more source

Dynamic cracking properties and generating conditions of coal under rapid gas release

Deep Underground Science and Engineering, EarlyView.
Gas release tests revealed that crack initiation and propagation are jointly controlled by initial crack length, residual strength, and gas release velocity. A new outburst risk coefficient was thus developed from a fracture mechanics perspective, offering a novel predictive approach.
Bing Zhang, Hanpeng Wang, Liang Yuan, Guofeng Yu, Wei Wang, Benliang Chen, Bo Ren   +6 more
wiley   +1 more source

Implementation of explosion safety regulations in design of a mobile robot for coal mines [PDF]

, 2018
The article focuses on specific challenges of the design of a reconnaissance mobile robotic system aimed for inspection in underground coal mine areas after a catastrophic event.
Babjak, Ján, Konečný, Zdeněk, Kot, Tomáš, Lopez, Angel Rodriguez, Moczulski, Wojciech, Novák, Petr   +5 more
core   +2 more sources

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

Deep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu, Dawei Cui, Yingjie Liu, Yuntao Liang, Yue Zhang   +4 more
wiley   +1 more source

Experimental Study on the Ignition Sensitivity and Explosion Severity of Different Ranks of Coal Dust

Shock and Vibration, 2019
This study is conducted to examine the ignition sensitivity and explosion severity differences among different ranks of coal dust and reveal the causes underlying these differences.
Junfeng Wang, Xiangbao Meng, Yansong Zhang, Haiyan Chen, Bo Liu   +4 more
doaj   +1 more source

Biomass Explosion Residue Analysis [PDF]

, 2014
On account of its greenhouse gas advantages there is increasing use of pulverized biomass in power generation. However, there is little information on the combustion properties of pulverized biomass and on the explosion hazards they create in the mills ...
Andrews, GE, Gibbs, BM, Huescar Medina, C, Phylaktou, HN, Sattar, H, Slatter, DJF   +5 more
core  

Solar Fuels Via Methane Valorization: Thermochemical Pathways, Unified Metrics, and Techno‐Economic Perspectives

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A first‐of‐its‐kind review benchmarks three solar methane valorization pathways with unified performance metrics for clean fuel production. Meeting global climate targets and sustainable energy demands requires carbon‐neutral fuels and innovative conversion pathways.
Muhammad Abdulmoez, Amjad Othman, Majid Linjawi, Amro Al‐Qutub   +3 more
wiley   +1 more source

Influence of Coal Quality Index on Maximum Pressure Rise Rate in Coal Dust Explosion

Meikuang Anquan, 2020
In order to study the influence of coal dust index on coal dust explosion, the maximum pressure rising rate of coal dust explosion with different industrial components was measured by 20 L spherical explosion vessel. The data of coal quality indexes are
JING Guoxun, PENG Le, BAN Tao1
doaj   +1 more source