The Experts below are selected from a list of 1854 Experts worldwide ranked by ideXlab platform
Kumar Durgesh - One of the best experts on this subject based on the ideXlab platform.
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Thermal Analysis of Blast Furnace Stave Cooling
2016Co-Authors: Kumar DurgeshAbstract:The blast Furnace is a metallurgical device which is used to produce molten metal, especially iron. Thus, it is subjected to high temperature inside the Furnace during the operations. Cooling is necessary to maintain the safe temperature limit inside the blast Furnace for proper functioning and better service life. The primary purpose of the cooling system is to cool the Furnace Shell and prevent it from overheating and subsequent burn through. The cooling system removes the excess heat generated in the Furnace which is otherwise loaded on the Shell. For the blast Furnace cooling Stave cooling is used for heat transfer. In paper 3-Dimensional heat transfer analysis of blast Furnace stave cooling is modeled and analyzed in FEV software ANSYS Fluent®. Different types of stave material cast steel, cast iron and aluminium is chosen for analysis of stave cooling. Similarly, the various refractory lining is also taken into account. The Modelled is analyzed for temperature profile, Heat dissipation and stress distribution inside the Furnaces. The various factors affecting the cooling phenomenon is also analysed and observed. The Numerical results collaborate with experimental data obtained from Local steel plant at Rourkela
Chen Yanbo - One of the best experts on this subject based on the ideXlab platform.
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A new method for evaluating cooling capacity of blast Furnace cooling stave
'Informa UK Limited', 2018Co-Authors: Zhang Heng, Jiao, Ke Xin, Zhang, Jian Liang, Chen YanboAbstract:The detailed process of the heat transfer of the cooling stave in blast Furnace (BF) has been systematically analyzed and the simplified mathematical model was constructed based on heat transfer theory. Precise definitions of the cooling capacity, stable working slag thickness and safe working slag thickness were put forward so as to evaluate the cooling capacity of cooling stave systematically. The results show that 95% of heat is carried off by cooling water through convection and the heat taken away through convective heat transfer between Furnace Shell and atmosphere only account for 5%. The entire heat transfer process can be divided into four modules and the cooling system is divided into three parts. The cooling capacity φ is defined and function curve of temperature of cooling stave hot surface T with changes of brick thickness is drawn and the safe working area and stable working area are put forward
Roberto Martini - One of the best experts on this subject based on the ideXlab platform.
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heat transfer energy saving and pollution control in uhp electric arc Furnaces
Energy, 2000Co-Authors: G Bisio, G Rubatto, Roberto MartiniAbstract:The use of hot-water and evaporative cooling enables the residual energy potential of iron and steel works to be utilized. In particular, water-traversed wall elements are used at present in the top zone of an electric-arc Furnace. Indeed, the remarkable increase in the electrical power has made the cooling of the wall of the Furnace compulsory. Thus, it seems suitable to use the energy recovered in the cooling elements, instead of transferring it to the atmosphere via closed cooling towers. Nucleate boiling leads to a substantially more intensive cooling, but even a limited increase in the input heat flow can be dangerous. If the slag accretions, temperature and thermal power are examined in cases of steady state Furnace operation and completely slag-covered arcs, it is found that the thermal losses decrease remarkably as the melting temperature of the slag adhering to the Furnace Shell increases. The aim of this paper is, first of all, an analysis of heat transfer phenomena in UHP (ultra high power) electric-arc Furnaces. Then, energy and exergy analyses are dealt with after some remarks about exergy efficiency and chemical exergy of elements. In addition, means to reduce noise, air and water pollution are examined.
Yanping Sun - One of the best experts on this subject based on the ideXlab platform.
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Dynamics Characteristics of Blast Furnace Shell
2020Co-Authors: Dechen Zhang, Yanping SunAbstract:Abstract. Finite element method and structural mechanics method are used to study the blast Furnace Shell modal analysis and the natural frequencies and mode shapes have been calculated. The two methods were compared and validated , and the results provide a theoretical foundation for the anti-vibration capabilities design of blast Furnace Shell in the future
Šrámek Martin - One of the best experts on this subject based on the ideXlab platform.
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Stress-Strain Analysis of the Furnace Shell
Vysoká škola báňská - Technická univerzita Ostrava, 2018Co-Authors: Šrámek MartinAbstract:Bakalářská práce se zabývá teplotním namáháním součásti, u kterých je dominantní mechanismus přenosu tepla za pomoci vedení tepla. V této práci je provedeno srovnání analytického výpočtu s výpočtem za pomocí metody konečných prvků na tlustostěnné trubce. V nosné části práce je zkoumán vliv teplotního namáhání krytu pece pro několik konstrukčních variant. Výpočty jsou realizovány v komerčních softwarech ANSYS Workbench a COMSOL Multiphysics. Dosažené výsledky jsou srovnávány s mezním stavem pružnosti a deformace.The bachelor thesis deals with the thermal stress of the mechanical components, where is the dominant heat transfer mechanism assisted by heat conduction. In this work is done the comparison of the analytical calculation with the finite element method on the thick-walled tubes. In the main part of the work is investigated the effect of thermal stress of the Furnace Shell for several design variants. The calculations are performed in commercial software ANSYS Workbench and COMSOL Multiphysics. The results are compared with the limit state of elasticity and deformation.330 - Katedra aplikované mechanikyvýborn
