Results 141 to 150 of about 1,795,114 (414)
This lesson provides an introduction to the use of coal as an energy source. Topics include the history of coal usage, applications of coal as an energy source, and major suppliers of coal (the United States).
John Pratte
core
Material handling systems for the fluidized-bed combustion boiler at Rivesville, West Virginia [PDF]
The 300,000 lbs/hr steam capacity multicell fluidized-bed boiler (MFB) utilizes complex material handling systems. The material handling systems can be divided into the following areas: (1) coal preparation; transfer and delivery, (2) limestone handling ...
Branam, J. G., Rosborough, W. W.
core +1 more source
A low‐temperature hydrogen spillover decomposition strategy is proposed to reveal the influence of the CaCO3 parent conversion process on the properties of nascent CaO. Under the guidance of the advanced synthesis strategy, the properties of calcium‐based dual‐functional materials are maximally exploited.
Lifei Wei+7 more
wiley +1 more source
STUDYING THE POSSIBILITY OF USING RED-BROWN CLAY FOR RECLAMATION OF COAL WASTE DUMPS [PDF]
The coal mining industry, as the source of the main fuel resource and the main energy resource, has particular importance for Ukraine.
Heilmeier, Hermann+1 more
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Hybrid Solar Spectral‐Splitting Photovoltaic‐Thermal Hydrogen Production Systems
A hybrid solar photovoltaic‐thermal hydrogen system with membrane‐less electrolysis significantly boosts solar‐to‐hydrogen efficiency by co‐using thermal and electrical energy. The system attains good performance under variable irradiance with direct current power converters.
Yu Tian+4 more
wiley +1 more source
Abstract The characteristic time periodicity τ* and the spatial characteristic wavelength λ of extrusion flow instabilities of a linear and a branched commercial polyethylene (PE) are characterized via capillary rheology, optical analysis and modeled. The two investigated polyethylenes have the similar weight average molecular weight (Mw).
Christos K. Georgantopoulos+4 more
wiley +1 more source
Reduction of Sulfur and Ash from Tabas Coal by Froth Flotation [PDF]
Tabas mines in Iran have coal sources which are suitable for use in metallurgy industries as coking coal. But the high sulfur content of this coal imposes severe limitations on its utilization as the sulfur oxide gases evolved from the combustion of high
Mohammad Reza Ehsani, Farahnaz Eghbali
doaj
Sustainable Development of High‐performance Poly(ester‐imine) Biobased Thermosets
Schiff‐based epoxy monomers derived from renewable natural resources are used to design robust structures by cross–linking with bio‐anhydrides. The resulting eco‐friendly, high‐performance thermosets feature two cleavable bonds, offering versatility for various applications.
Roxana Dinu+3 more
wiley +1 more source
Silane and silazane surface modification of recycled glass fibers for polypropylene composites
This study investigates the efficiency of multifunctional silane and silazane agents for surface modification of recycled glass fibers. Overall, the amino‐silane reagents improve the dispersion of GFs in PP, and permit subsequent reaction with MAPP leading to better compatibilization, with moderate improvements in strength attributed to the ...
Kyriaki Gkaliou, Anders E. Daugaard
wiley +1 more source
Investigation and Measurement of Ash Content of Coal in Zirab Coal Mine-Iran Using Dual Energy -Ray and X-Ray Fluorescence Methods [PDF]
Coal with low ash content has an important role in the coal and steel industry. There are different methods to measure the ash content. The conventional method which is used in most coal mines of Iran, is to burn the coal and measure the remaining ash. A
Abbas Esmaeilnia Shirvani+1 more
doaj