Results 71 to 80 of about 201,364 (273)

Karakteristik Mekanis dari Campuran Abu Terbang dan Abu Dasar dalam Geoteknik [PDF]

, 2017
Generally, coal are used for fuel by industry factory at Indonesia. Coal burning produce two of kind waste, that is fly ash and bottom ash. Utilization of coal waste is not optimal yet at this time.
Hamdani, R. (Ridwan), Muhardi, M. (Muhardi), Satibi, S. (Syawal)   +2 more
core  

Stress Redistribution Mechanisms and Subsidence Control of Fluidized Gangue Backfilling in Underground Coal Mining: Integrated Experimental and Numerical Investigation

Energy Science &Engineering, EarlyView.
Fluidized gangue backfilling controls mining subsidence through stress redistribution in composite backfill‐pillar systems, reducing surface settlement and stress concentrations. Multi‐scale experimental and numerical analysis provides quantitative design parameters for optimizing ground control in sustainable underground coal mining operations ...
Weilong Zhang, Jie Zhang, Yuanzhen Zhang, Wenjing Liu, Liang Li, Deyi Nan, Guannan Zhao, Chen Yang, Haiqing Bian, Hua Shao, Xiao Zuo, Changtai Zhou   +11 more
wiley   +1 more source

A novel multi-model estimation of phosphorus in coal and its ash using FTIR spectroscopy

Scientific Reports
The level of phosphorus must be carefully monitored for proper and effective utilization of coal and coal ash. The phosphorus content needs to be assessed to optimize combustion efficiency and maintenance costs of power plants, ensure quality, and ...
Arya Vinod, Anup Krishna Prasad, Sameeksha Mishra, Bitan Purkait, Shailayee Mukherjee, Anubhav Shukla, Nirasindhu Desinayak, Bhabesh Chandra Sarkar, Atul Kumar Varma   +8 more
doaj   +1 more source

Bio-Desilication of Coal Fly Ash and the Impacts on Critical Metal Recovery

Metals
Critical metals such as rare earth elements (REEs) are primarily associated with silicates and aluminosilicates in coal fly ash, resulting in poor REE recovery.
Shulan Shi, Ting Chen, Simeng Ren, Jinhe Pan   +3 more
doaj   +1 more source

Characterization and utilization of fly ash [PDF]

, 2007
Nearly 73% of the country’s total installed power generation capacity is thermal of which coal-based generation is 90%. Some 85 thermal power stations, besides several captive power plants use bituminous and sub-bituminous coal and produce large ...
Kamal, Manish, Upadhyay, Ankur
core  

Experimental Investigation of Sensitivity for Coal and Gas Outburst Risk Prediction Indexes in Raw and Tectonic Composite Coal Seams

Energy Science &Engineering, EarlyView.
A comparative study was conducted on gas desorption laws of raw and tectonic coals. The sensitivity of regional and local outburst prediction indexes was compared. Gas content is more sensitive than gas pressure for composite coal seams. K1 can more accurately predict the outburst danger than Δh2 $\Delta {h}_{2}$ in composite coal seams.
Haijun Guo, Xi Xi, Kai Wang, Liang Wang, Yulin Li   +4 more
wiley   +1 more source

Study on the co-combustion mechanism of coal gangue and coal gasification fly ash based on thermogravimetric mass spectrometry

Meitan xuebao
The combustion characteristics and gas release characteristics of the Wuhai coal gangue, the Suqian coal gasification fly ash, and their mixtures were revealed by thermogravimetric mass spectrometry analysis. The co-combustion mechanism of the Wuhai coal
Jiangong LIN, Xiaoyu ZHANG, Jicheng HUI, Shujun ZHU, Jianguo ZHU   +4 more
doaj   +1 more source

Alkali Leaching of Indian Coal for Ash Reduction [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2018
Coal is a major source of energy. The available Indian coal quality is very poor having very high ash content and low calorific value. Indian coal generates a large quantity of ash as a by-product of combustion.
Jatinder Pal Singh, S.K. Mohapatra, Gurprit Singh, Satish Kumar, Mani Kanwar Singh   +4 more
doaj  

Micronized coal burner facility [PDF]

, 1984
A combustor or burner system in which the ash resulting from burning a coal in oil mixture is of submicron particle size is described. The burner system comprises a burner section, a flame exit nozzle, a fuel nozzle section, and an air tube by which ...
Calfo, F. D., Lupton, M. W.
core   +1 more source

Toxic Metals in Dried Marine Fish and Implications for Human Health in Bangladesh and Exporting Countries

Food Safety and Health, EarlyView.
This study assessed toxic metals in five dried marine fish species from Bangladesh. Although most metals were within safe limits, chromium (Cr) consistently exceeded FAO/WHO standards, especially at Kuakata Beach. The findings highlight localized contamination hotspots and species‐specific bioaccumulation, while risk assessment supports the safety and ...
Shapla Khatun, Md. Sirajul Islam, Mir Md. Mozammal Hoque, M. S. Mahmud Klanti, Kazi Sanjana Adnen, Md. Humayun Kabir, Md. Enamul Hoq, Tanmoy Roy Tusher   +7 more
wiley   +1 more source