2020
DOI: 10.15407/steelcast2019.10.008
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Deep bath – the way to intensify heat and mass transfer processes and increase energy efficiency of the electric arc furnace.

Abstract: Для зниження втрат теплоти випромінюванням провідні компанії «Siemens-VAI» (ФРН, Австрія) і «Danieli» (Італія) використовують теплоакумулюючі і теплоізоляційні властивості гарнісажу, що утворюється завдяки конструктивним особливостям водоохолоджуваних панелей [5, 6]. Проблеми засвоєння енергії в ДСП надвисокої потужності (≥1,2 МВА/т) актуалізують задачі зниження і утилізації втрат теплоти, диверсифікації енергозабезпечення. Компанії «Tenova» (Італія), «Siemens-VAI», «JP Steel Plantech» (Японія), «SMS Siemag» (… Show more

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“…1, b). The arc energy efficiency ratio in the well h w , as sessed within the model using (3,4), is 0.68-0.70 [15]. Dura tion of well formation t w , s in conditions of uniform active power release in the arcs is determined by the energy balance of melting scrap with a mass…”
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confidence: 99%
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“…1, b). The arc energy efficiency ratio in the well h w , as sessed within the model using (3,4), is 0.68-0.70 [15]. Dura tion of well formation t w , s in conditions of uniform active power release in the arcs is determined by the energy balance of melting scrap with a mass…”
mentioning
confidence: 99%
“…where C s , T ms , g s are heat capacity, kJ/(kg K), melting tem perature, K and fusion heat of scrap, kJ/kg, respectively; T 0 is the initial temperature of media, K; k s is the scrap consump tion factor; S is transformer specific capacity, MVA/t; k 1 = = 0.80 is the power factor during scrap melting [11]. Coefficient k g = 0.07 takes into account heat loss with dust and gas environment, which is formed mainly by the inflow of cold air into the furnace under the action of rarefaction [15]. The parameter k w = 1 -(ΔH/H k ) characterizes the reduction of…”
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confidence: 99%
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