Energy optimization of the steelmaking process in an electric arc furnace:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Düren
Shaker Verlag
2024
|
| Ausgabe: | 1. Auflage |
| Schriftenreihe: | Schriftenreihe des Lehrstuhls für Systemdynamik und Prozessführung
2024,4 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | 1 Band (verschiedene Seitenzählung) Illustrationen, Diagramme 21 cm x 14.8 cm, 321 g |
| ISBN: | 9783844095098 3844095098 |
Internformat
MARC
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| 245 | 1 | 0 | |a Energy optimization of the steelmaking process in an electric arc furnace |c Jesus David Hernandez Ortiz |
| 263 | |a 202405 | ||
| 264 | 1 | |a Düren |b Shaker Verlag |c 2024 | |
| 300 | |a 1 Band (verschiedene Seitenzählung) |b Illustrationen, Diagramme |c 21 cm x 14.8 cm, 321 g | ||
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| 338 | |b nc |2 rdacarrier | ||
| 490 | 1 | |a Schriftenreihe des Lehrstuhls für Systemdynamik und Prozessführung |v 2024,4 | |
| 502 | |b Dissertation |c Technische Universität Dortmund |d 2023 | ||
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| 650 | 0 | 7 | |a Energieeffizienz |0 (DE-588)7660153-5 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Prozessmodell |0 (DE-588)4237203-3 |2 gnd |9 rswk-swf |
| 653 | |a Electric arc furnace | ||
| 653 | |a steelmaking | ||
| 653 | |a energy efficiency | ||
| 653 | |a dynamic optimization | ||
| 653 | |a process optimization | ||
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Datensatz im Suchindex
| _version_ | 1822762129542873088 |
|---|---|
| adam_text |
CONTENTS
LIST
OF
TABLES
XI
LIST
OF
FIGURES
XIII
LIST
OF
SYMBOLS
XVII
1
INTRODUCTION
1
1.1
BACKGROUND
AND
MOTIVATION
.
1
1.1.1
STEELMAKING
PROCESSES
.
1
1.1.2
THE
ELECTRIC
ARC
FURNACE
.
2
1.1.3
STEEL
TYPES
AND
THEIR
OPERATIONAL
PRACTICES
.
4
1.1.4
SETPOINTS
AND
CONTROL
STRUCTURES
.
6
1.1.5
CHALLENGES
IN
MODERN
STEELMAKING
.
7
1.1.6
HIERARCHICAL
STRUCTURE
FOR
THE
OPTIMIZATION
OF
THE
OPER
ATION
OF
THE
EAF
STEELMAKING
PROCESS
.
9
1.2
RESEARCH
OBJECTIVE
AND
OUTLINE
OF
THE
THESIS
.
12
1.2.1
GENERAL
OBJECTIVE
.
12
1.2.2
THE
KNOWLEDGE
GAPS
ADDRESSED
BY
THIS
THESIS
.
12
1.2.3
THE
INDUSTRIAL
NEEDS
ADDRESSED
BY
THIS
THESIS
.
18
1.2.4
THESIS
STRUCTURE
AND
OUTLINE
.
19
2
MODELING
OF
STEELMAKING
ELECTRIC
ARCS
23
2.1
WHAT
IS
AN
ELECTRIC
ARC?
.
23
2.2
STATE
OF
THE
ART
IN
MODELING
OF
ELECTRIC
ARCS
.
24
2.2.1
ELECTRIC
ARC
MODELS
USING
A
FIRST
PRINCIPLES
APPROACH
.
.
24
2.2.2
CHANNEL
ARC
MODELS
(CAM)
.
27
2.2.3
ELECTRIC
ARC
MODELS
FROM
A
PURELY
ELECTRICAL
POINT
OF
VIEW
29
2.2.4
ARC
MODELS
IN
STEELMAKING
.
32
2.3
DERIVATION
OF
A
NOVEL
ELECTRIC
ARC
MODEL
FOR
EAF
.
34
2.3.1
MODELING
APPROACH
AND
ASSUMPTIONS
.
34
2.3.2
GOVERNING
EQUATIONS
.
35
2.3.3
PLASMA
PARAMETERS:
ELECTRICAL
CONDUCTIVITY
AND
NET
EMISSION
COEFFICIENTS
.
41
2.3.4
THE
IMPLICIT
NLP
ARC
MODEL
.
42
2.4
EXPERIMENTAL
MEASUREMENTS
OF
THE
LENGTH
OF
STEELMAKING
ARCS
44
2.4.1
GENERAL
DESCRIPTIONS
.
44
2.4.2
ESTIMATION
OF
THE
DEPTH
OF
THE
SLAG
LAYER
.
45
2.4.3
BATH
DEPRESSION
DUE
TO
THE
JET
OF
THE
ARC
.
45
2.4.4
ARC
LENGTH
MEASUREMENTS
AT
A
SINGLE
ELECTRICAL
SETPOINT
48
2.4.5
ARC
LENGTH
MEASUREMENTS
AT
VARIOUS
ELECTRICAL
SETTINGS
.
51
2.5
DETERMINATION
OF
THE
FREE
PARAMETERS
OF
THE
MODEL:
ARC
RADIUS
AND
PLASMA
COMPOSITION
.
54
2.6
VOLTAGE
AND
IMPEDANCE
EFFECTS
ON
THE
PHYSICS
OF
THE
ARC
.
60
2.6.1
SIMPLIFIED
APPROXIMATION
TO
THE
LENGTH
OF
THE
ARC
.
62
2.6.2
IMPLICIT
APPROXIMATION
TO
THE
TEMPERATURE
OF
THE
ARC
.
64
2.7
VALIDATION
OF
THE
MODEL
AND
ERROR
ESTIMATIONS
.
65
2.7.1
ESTIMATION
OF
THE
FREE
PARAMETERS:
EMPIRICAL
FORMULA
.
65
2.7.2
ESTIMATION
OF
THE
FREE
PARAMETERS:
BOWMAN
'
S
FORMULA
66
2.7.3
COMPARISON
OF
RESULTS
AND
ERROR
COMPUTATIONS
OF
THE
PREDICTIONS
.
66
2.8
SUMMARY
OF
THE
CHAPTER
.
69
3
ELECTRIC
ARC
FURNACE
PROCESS
MODELING
71
3.1
STATE
OF
THE
ART
IN
EAF
MODELING
.
71
3.2
MODEL
DEVELOPMENT
.
73
3.2.1
CAUSALITY
BETWEEN
INPUTS
AND
OUTPUTS
.
73
3.2.2
MODELING
ASSUMPTIONS
.
73
3.2.3
ENERGY
STREAMS
AND
ENERGY
BALANCES
.
78
3.2.4
DYNAMIC
MODEL
.
80
3.2.5
RADIATION
FROM
THE
ARC
.
82
3.2.6
MONTE
CARLO
CALCULATION
OF
VIEW
FACTORS
.
89
3.2.7
OXY-FUEL
BURNER
MODEL
.
94
3.2.8
OXIDATION
OF
SOLID
METALS
.
102
3.2.9
COMBUSTION
OF
COAL
.
103
3.2.10
OXYGEN
LANCING
.
104
3.3
NUMERICAL
RESULTS
.
108
3.3.1
MELTING
RATE
AND
SOLID
METAL
MASS
.
109
3.3.2
TEMPERATURE
OF
THE
SOLID
AND
THE
LIQUID
METAL
PHASES
.
111
3.4
ESTIMATION
OF
THE
FREE
PARAMETERS
OF
THE
MODEL
.
113
3.4.1
FORMULATION
OF
THE
ESTIMATION
PROBLEM
.
113
3.4.2
CONSIDERED
PROCESS
DATA
.
116
3.4.3
RESULTS
.
117
3.5
VALIDATION
OF
THE
MODEL
.
117
3.6
SUMMARY
OF
THE
CHAPTER
.
122
4
ENERGY
EFFICIENCY
OF
THE
PROCESS
125
4.1
RADIATIVE
ENERGY
FLOWS
AND
ELECTRICAL
ENERGY
EFFICIENCY
.
125
4.2
DYNAMIC
EFFICIENCY
OF
THE
ENERGY
INPUTS
.
128
4.3
OVERALL
ENERGY
EFFICIENCY
OF
THE
PROCESS
.
129
5
MODEL-BASED
OPTIMIZATION
OF
THE
EAF
PROCESS
133
5.1
FORMULATION
OF
THE
OPTIMAL
CONTROL
PROBLEM
FOR
THE
ELECTRIC
ENERGY
EFFICIENCY
OF
AN
EAF
.
133
5.2
STRATEGIES
FOR
THE
SOLUTION
OF
THE
OCP
.
135
5.3
OPTIMAL
OPERATION
AT
A
SINGLE
ELECTRICAL
POWER
LEVEL
.
136
5.3.1
PHYSICS
OF
THE
PROCESS
AND
SIMPLIFICATION
OF
THE
OCP
.
136
5.3.2
EFFECTS
OF
THE
GEOMETRY
OF
THE
ARC
ON
THE
ELECTRICAL
ENERGY
LOSSES
OF
THE
PROCESS
.
137
5.3.3
OPTIMAL
ARC
LENGTH
FOR
OPERATIONS
AT
A
UNIQUE
POWER
LEVELL41
5.4
OPTIMAL
OPERATION
USING
VARYING
ELECTRICAL
POWER
SETTINGS
.
.
.
143
5.4.1
SIMPLIFICATION
AND
DOMAIN
TRANSFORMATION
OF
THE
OCP
.
143
5.4.2
THE
CONTROL
VECTOR
PARAMETRIZATION
STRATEGY
.
145
5.4.3
NUMERICAL
CASE
STUDY
AND
OPTIMAL
MODE
OF
OPERATION
.
149
5.5
RESULTS
OF
THE
OPTIMIZATION
IN
A
REAL
INDUSTRIAL
PROCESS
.
155
5.6
OUTLOOK:
OPTIMAL
PLANT-WIDE
OPERATION
.
156
5.6.1
REFORMULATION
OF
THE
OCP
AND
INTEGRATION
WITH
THE
SCHEDULING
LAYER
.
156
5.6.2
NUMERICAL
CASE
STUDY
OF
THE
INTEGRATED
OPTIMIZATION
.
.
157
5.7
SUMMARY
OF
THE
CHAPTER
.
159
6
SUMMARY
AND
CONCLUSIONS
161
BIBLIOGRAPHY
I
APPENDIX
XIII |
| any_adam_object | 1 |
| author | Hernandez, Jesus 1986- |
| author_GND | (DE-588)1338937499 |
| author_facet | Hernandez, Jesus 1986- |
| author_role | aut |
| author_sort | Hernandez, Jesus 1986- |
| author_variant | j h jh |
| building | Verbundindex |
| bvnumber | BV049880833 |
| ctrlnum | (DE-599)DNB1328031950 |
| edition | 1. Auflage |
| format | Thesis Book |
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| id | DE-604.BV049880833 |
| illustrated | Illustrated |
| indexdate | 2025-01-31T11:03:47Z |
| institution | BVB |
| institution_GND | (DE-588)1064118135 |
| isbn | 9783844095098 3844095098 |
| language | English |
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| physical | 1 Band (verschiedene Seitenzählung) Illustrationen, Diagramme 21 cm x 14.8 cm, 321 g |
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| publishDateSearch | 2024 |
| publishDateSort | 2024 |
| publisher | Shaker Verlag |
| record_format | marc |
| series | Schriftenreihe des Lehrstuhls für Systemdynamik und Prozessführung |
| series2 | Schriftenreihe des Lehrstuhls für Systemdynamik und Prozessführung |
| spelling | Hernandez, Jesus 1986- Verfasser (DE-588)1338937499 aut Energy optimization of the steelmaking process in an electric arc furnace Jesus David Hernandez Ortiz 202405 Düren Shaker Verlag 2024 1 Band (verschiedene Seitenzählung) Illustrationen, Diagramme 21 cm x 14.8 cm, 321 g txt rdacontent n rdamedia nc rdacarrier Schriftenreihe des Lehrstuhls für Systemdynamik und Prozessführung 2024,4 Dissertation Technische Universität Dortmund 2023 Energieeinsparung (DE-588)4014700-9 gnd rswk-swf Lichtbogenofen (DE-588)4167576-9 gnd rswk-swf Elektrostahlverfahren (DE-588)4216701-2 gnd rswk-swf Prozessführung Technik (DE-588)4197295-8 gnd rswk-swf Energieeffizienz (DE-588)7660153-5 gnd rswk-swf Prozessmodell (DE-588)4237203-3 gnd rswk-swf Electric arc furnace steelmaking energy efficiency dynamic optimization process optimization (DE-588)4113937-9 Hochschulschrift gnd-content Lichtbogenofen (DE-588)4167576-9 s Elektrostahlverfahren (DE-588)4216701-2 s Energieeffizienz (DE-588)7660153-5 s Prozessführung Technik (DE-588)4197295-8 s Energieeinsparung (DE-588)4014700-9 s Prozessmodell (DE-588)4237203-3 s DE-604 Shaker Verlag (DE-588)1064118135 pbl Schriftenreihe des Lehrstuhls für Systemdynamik und Prozessführung 2024,4 (DE-604)BV035738045 2024,4 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=035220190&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis 1\p vlb 20240501 DE-101 https://d-nb.info/provenance/plan#vlb |
| spellingShingle | Hernandez, Jesus 1986- Energy optimization of the steelmaking process in an electric arc furnace Schriftenreihe des Lehrstuhls für Systemdynamik und Prozessführung Energieeinsparung (DE-588)4014700-9 gnd Lichtbogenofen (DE-588)4167576-9 gnd Elektrostahlverfahren (DE-588)4216701-2 gnd Prozessführung Technik (DE-588)4197295-8 gnd Energieeffizienz (DE-588)7660153-5 gnd Prozessmodell (DE-588)4237203-3 gnd |
| subject_GND | (DE-588)4014700-9 (DE-588)4167576-9 (DE-588)4216701-2 (DE-588)4197295-8 (DE-588)7660153-5 (DE-588)4237203-3 (DE-588)4113937-9 |
| title | Energy optimization of the steelmaking process in an electric arc furnace |
| title_auth | Energy optimization of the steelmaking process in an electric arc furnace |
| title_exact_search | Energy optimization of the steelmaking process in an electric arc furnace |
| title_full | Energy optimization of the steelmaking process in an electric arc furnace Jesus David Hernandez Ortiz |
| title_fullStr | Energy optimization of the steelmaking process in an electric arc furnace Jesus David Hernandez Ortiz |
| title_full_unstemmed | Energy optimization of the steelmaking process in an electric arc furnace Jesus David Hernandez Ortiz |
| title_short | Energy optimization of the steelmaking process in an electric arc furnace |
| title_sort | energy optimization of the steelmaking process in an electric arc furnace |
| topic | Energieeinsparung (DE-588)4014700-9 gnd Lichtbogenofen (DE-588)4167576-9 gnd Elektrostahlverfahren (DE-588)4216701-2 gnd Prozessführung Technik (DE-588)4197295-8 gnd Energieeffizienz (DE-588)7660153-5 gnd Prozessmodell (DE-588)4237203-3 gnd |
| topic_facet | Energieeinsparung Lichtbogenofen Elektrostahlverfahren Prozessführung Technik Energieeffizienz Prozessmodell Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=035220190&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV035738045 |
| work_keys_str_mv | AT hernandezjesus energyoptimizationofthesteelmakingprocessinanelectricarcfurnace AT shakerverlag energyoptimizationofthesteelmakingprocessinanelectricarcfurnace |