scholarly journals Final report on the small-scale vapor-explosion experiments using a molten NaCl--H/sub 2/O system. [LMFBR]

1976 ◽  
Author(s):  
R. P. Anderson ◽  
L. Bova
Keyword(s):  
Small Scale ◽  
Final Report ◽  
Vapor Explosion

scholarly journals Atmospheric fluidized bed combustion for small scale market sectors. Final report

1997 ◽  
Author(s):  
R.A. Ashworth ◽  
D.A. Plessinger ◽  
T.M. Sommer ◽  
H.M. Keener ◽  
R.L. Webner
Keyword(s):  
Fluidized Bed ◽  
Small Scale ◽  
Final Report ◽  
Fluidized Bed Combustion

scholarly journals Some Approach in Assessing Information Technology Policies in Our Mining Industry under the Impact of the Industrial Revolution 4.0 (Case study: Vietnam National Coal and Mineral Industries Group – Vinacomin)

2021 ◽  
Vol 37 (1) ◽  
Author(s):  
Tran Thi Hai Van ◽  
Doan Minh Quan
Keyword(s):  
Information Technology ◽  
Industrial Revolution ◽  
Publishing House ◽  
Mining Industry ◽  
Harvard Business Review ◽  
Industrie 4.0 ◽  
Small Scale ◽  
Final Report ◽  
Fourth Industrial Revolution ◽  
The Impact

Since 1997, the mining industry has paid attention to develop information-technology (IT) components at sectoral and enterprise levels. However, due to various reasons, including the interest of business and sector leaders as well as limited resources, IT in the mining industry is still on a small scale, in which it has not yet linked to a network and had a shared database, and is therefore not shared. Under the impact of Industry Revolution 4.0, to develop the IT field as an essential tool to promote the technologies of the 4.0 technology component, a systematic policy combination is needed. This article is responsible for meeting that demand of the IT field of Vietnam's mining industry. Keywords Industry 4.0, IT, IT policy. References [1] K. Schwab, The Fourth Industrial Revolution: What It Means and How to Respond, https://www.weforum.org/agenda/2016/01/the-fourth-industrial-revolution-what-it-means-and-how-to-respond/, 2015.[2] Forschungsunion, Acatech, Recommendations for implementing the strategic initiative INDUSTRIE 4.0, Final report of the Industrie 4.0 Working Group, April 2013.[3] J.H. Leavitt, L.T. Whisler, Management in the 1980’s, Harvard Business Review, 1958-11.[4] National Assembly of Vietnam, Law on information technology (No. 67/2006/QH11), June 29, 2006 (in Vietnamese).[5] National Association directing the compilation of encyclopedias (Vietnam), Vietnamese encyclopedia, Hanoi, Vietnam, 1995 (in Vietnamese),[6] Wikipedia, Thomas Kuhn, https://vi.wikipedia.org/wiki/Thomas_Kuhn, 2019.[7] V.C. Dam, Scientific research methodology Science and Technics Publishing House, Hanoi, Vietnam, 1999 (in Vietnamese).    

scholarly journals Small Scale Experiments of CO2 Boiling Liquid Expanding Vapor Explosion in Injection Pipes

2014 ◽  
Vol 61 ◽  
pp. 782-786 ◽  
Author(s):  
Yi Zhou ◽  
Zhenyi Liu ◽  
Qian Huang ◽  
Feng Wang ◽  
Deping Zhang
Keyword(s):  
Small Scale ◽  
Vapor Explosion ◽  
Boiling Liquid

Effects of Mechanical Constraint and Heat Capacity on Vapor Explosions

2007 ◽  
Author(s):  
Masahiro Furuya ◽  
Takahiro Arai
Keyword(s):  
Oxide Layer ◽  
Water Droplet ◽  
Droplet Diameter ◽  
Molten Alloy ◽  
Small Scale ◽  
Oxide Surface ◽  
Mirror Surface ◽  
Vapor Explosion ◽  
Spontaneous Nucleation ◽  
Vapor Explosions

Small-scale experiments have been conducted to investigate the triggering mechanism of vapor explosions. In order to attain good repeatability and visibility, a smooth round water droplet was impinged onto a molten alloy surface. This configuration suppresses premixing events prior to triggering. The effect of the water droplet curvature was found to be negligibly small when the droplet diameter is larger than 4.5 mm. Vapor explosion conditions were identical for the molten tin pool depths ranging from 0.5 to 40 mm. The experimental results and the heat conduction analysis suggest that the length scale required for atomizing and fine mixing in the triggering event of the vapor explosion are sufficiently smaller than the molten tin pool depth of 0.5 mm. Six different kinds of materials were used as the pool liquid. The lower limit of the contact temperature in the vapor explosion region closely agrees with the spontaneous nucleation temperature of water. The upper limit of the initial molten alloy temperature decreases when an oxide layer forms on the surface causing an increase of the emissivity of thermal radiation that has a stabilizing effect on the vapor film. When an oxide layer formed on the surface, a water droplet was occasionally entrapped into a molten alloy dome, since the oxide layer prevents the droplet from evaporating coherently. The vapor explosion region obtained for the mirror surface is a conservative estimate, since that for the oxide surface fell into the internal region of mirror surface.

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