Zobrazeno 1 - 10
of 32
pro vyhledávání: '"N. B. Ballal"'
Publikováno v:
Metallurgical and Materials Transactions B. 52:2072-2086
When liquid flows in an operating packed bed, some volume of the liquid remains in the bed at any instant of time. This is known as total liquid holdup. When the liquid flow is stopped, some portion remains static in the bed and the rest drains out.
Publikováno v:
Metallurgical and Materials Transactions B. 52:1309-1321
Basic oxygen steelmaking has been the interest of research for several decades due to its complex and fast process dynamics. To predict the evolution of slag–metal composition and temperature, it is important to control the process efficiently. The
Publikováno v:
Metallurgical and Materials Transactions B. 51:2829-2842
The dripping zone of the blast furnace is important in determining the productivity and quality of hot metal. The permeability of the bed affects both of these factors. Static holdup of hot metal and slag resulting from interfacial phenomena adversel
Publikováno v:
Chemical Engineering Science. 212:115332
Static liquid holdup is one of the important parameters in packed bed operations. Packed bed can be fundamentally imagined as an aggregate of two-sphere contacts and liquid is potentially held at the contact points. Between two vertical spheres, exis
Publikováno v:
Journal of Powder Technology. 2015:1-7
Heat transfer in packed beds and their thermal response have been of great interest for scientists and engineers for the last several years, since they play a crucial role in determining design and operation of reactors. Heat transfer of a packed bed
Autor:
N. B. Ballal
Publikováno v:
Transactions of the Indian Institute of Metals. 66:483-489
Blast furnace iron making faces a lot of pressure to decrease use of metallurgical coke and carbon footprint. In many shops around the world in the meanwhile, the convectional blast furnace process is being run at near optimum efficiency for a given
Publikováno v:
Acta Materialia. 56:2037-2050
In this study, the bainitic microstructure of a furnace-cooled electro-slag-refined 5% Cr steel was studied by the electron backscattered diffraction (EBSD) technique. The pole figures suggest a strong orientation relationship close to the Nishiyama-
Publikováno v:
Ironmaking & Steelmaking. 35:228-240
Thermomechanical treatment (TMT) of plates is used to obtain the optimum combination of strength and toughness. Although this technique is applied to high strength low alloy (HSLA) steels, its application to ultrahigh strength steel (UHSS) is still u
Publikováno v:
ISIJ International. 46:1361-1370
A low alloy steel with the nominal chemical composition of C 0.3%, Mn 1%, Cr 4%, Mo 1%, V 0.4% with lower amount of P and S is prepared by electroslag refining (ESR). The result of the mechanical properties of this steel after tempering confirms that