scholarly journals Off‐Gas Waste Heat Recovery for Electric Arc Furnace Steelmaking Using Calcium Hydroxide (Ca(OH) 2 ) Dehydration

2020 ◽  
Vol 91 (11) ◽  
pp. 2000048
Author(s):  
Georg Hartfuß ◽  
Max Schmid ◽  
Günter Scheffknecht
Keyword(s):  
Calcium Hydroxide ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace

scholarly journals Case Study of an Organic Rankine Cycle (ORC) for Waste Heat Recovery from an Electric Arc Furnace (EAF)

Energies ◽  
2017 ◽  
Vol 10 (5) ◽  
pp. 649 ◽  
Author(s):  
Steven Lecompte ◽  
Oyeniyi Oyewunmi ◽  
Christos Markides ◽  
Marija Lazova ◽  
Alihan Kaya ◽  
...  
Keyword(s):  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace

Dynamic simulation of an electric arc furnace waste heat recovery system for steam production

2018 ◽  
Vol 135 ◽  
pp. 188-196 ◽  
Author(s):  
Thomas Keplinger ◽  
Markus Haider ◽  
Thomas Steinparzer ◽  
Andreas Patrejko ◽  
Paul Trunner ◽  
...  
Keyword(s):  
Dynamic Simulation ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Electric Arc ◽  
Arc Furnace ◽  
Waste Heat Recovery System ◽  
Recovery System ◽  
Heat Recovery System ◽  
Steam Production

Electric Arc Furnace Off-Gas Heat Recovery and Experience with a Testing Plant

2013 ◽  
Vol 85 (4) ◽  
pp. 519-526 ◽  
Author(s):  
Thomas Steinparzer ◽  
Markus Haider ◽  
Florian Zauner ◽  
Gerhard Enickl ◽  
Marcel Michele-Naussed ◽  
...  
Keyword(s):  
Heat Recovery ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace

Development of a thermal oil operated waste heat exchanger within the off-gas of an electric arc furnace at steel mills

2014 ◽  
Vol 66 (1-2) ◽  
pp. 335-345 ◽  
Author(s):  
Christian Brandt ◽  
Nils Schüler ◽  
Matthias Gaderer ◽  
Jens M. Kuckelkorn
Keyword(s):  
Heat Exchanger ◽  
Waste Heat ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Steel Mills ◽  
Thermal Oil

Modeling of the Off-Gas Cooling System for an Electric Arc Furnace and Evaluation of the Heat Recovery Potential

2016 ◽  
Vol 88 (10) ◽  
pp. 1463-1473 ◽  
Author(s):  
Atefeh Hassannia Kolagar ◽  
Thomas Meier ◽  
Thomas Echterhof ◽  
Herbert Pfeifer
Keyword(s):  
Heat Recovery ◽  
Cooling System ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Recovery Potential ◽  
Gas Cooling

scholarly journals Numerical modelling of heat flows in the upper blast furnace of the electric arc furnace

2018 ◽  
Vol 157 ◽  
pp. 02025
Author(s):  
Richard Lenhard ◽  
Milan Malcho ◽  
Peter Ďurčanský ◽  
Katarina Kaduchová
Keyword(s):  
Waste Heat ◽  
Heating System ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Program Code ◽  
Ansys Fluent ◽  
Heat Flows ◽  
Central Heating ◽  
Volume Method

Contributing shows one of the alternatives to use the waste heat from an electric furnace hat with subsequent use for the need for heating water preparation and central heating. In a contribution is presents a numerical model of heat flows from electric arc furnace designed for, into a cooled furnace from which waste heat is led to the central heating system. The model was developed implementing the finite volume method in ANSYS-Fluent program code.

scholarly journals Analysis of Energy Balance for a Steel Electric Arc Furnace

2020 ◽  
Vol 16 ◽  
Keyword(s):  
Energy Efficiency ◽  
Energy Balance ◽  
Heat Recovery ◽  
Process Analysis ◽  
Cooling Water ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Exhaust Gas ◽  
Actual Process ◽  
Arc Furnace

A process and energy analysis was performed for an Electric Arc Furnace for steel production in order to determine the energy efficiency defined as losses contribution in the total energy input. Process analysis was performed during operation for one batch, measuring the relevant process parameters. Energy balance revealed that a significant potential for improvement exists, the main directions being reducing the cooling water loss (for example, by implementing a heat recovery system), reducing the loss during loading and adjustment by implementing technology changes and automation and reducing the loss through exhaust gas. Although implementation of heat recovery systems on the cooling water circuit and exhaust gas duct will not influence the actual process energy efficiency, it is expected to improve the overall energy expenditure by integrating other heat consuming equipment.

Analytical Electron Microscopy Characterization of Electric Arc Furnace Dust

1981 ◽  
Vol 39 ◽  
pp. 134-135
Author(s):  
J. R. Porter ◽  
J. I. Goldstein ◽  
D. B. Williams
Keyword(s):  
Electron Microscopy ◽  
Analytical Electron Microscopy ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Dust Particles ◽  
Particle Analysis ◽  
Arc Furnace ◽  
Analytical Electron ◽  
Residual Elements ◽  
Industry Practice

Alloy scrap metal is increasingly being used in electric arc furnace (EAF) steelmaking and the alloying elements are also found in the resulting dust. A comprehensive characterization program of EAF dust has been undertaken in collaboration with the steel industry and AISI. Samples have been collected from the furnaces of 28 steel companies representing the broad spectrum of industry practice. The program aims to develop an understanding of the mechanisms of formation so that procedures to recover residual elements or recycle the dust can be established. The multi-phase, multi-component dust particles are amenable to individual particle analysis using modern analytical electron microscopy (AEM) methods.Particles are ultrasonically dispersed and subsequently supported on carbon coated formvar films on berylium grids for microscopy. The specimens require careful treatment to prevent agglomeration during preparation which occurs as a result of the combined effects of the fine particle size and particle magnetism. A number of approaches to inhibit agglomeration are currently being evaluated including dispersal in easily sublimable organic solids and size fractioning by centrifugation.

Monitoring the environmental and energy impacts of electric arc furnace steelmaking

2016 ◽  
Vol 104 (1) ◽  
pp. 102 ◽  
Author(s):  
Valentina Colla ◽  
Filippo Cirilli ◽  
Bernd Kleimt ◽  
Inigo Unamuno ◽  
Silvia Tosato ◽  
...  
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace
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