Electrical Energy Saving Based on Production Process Optimization for Steel Enterprise

2011 ◽  
Vol 383-390 ◽  
pp. 4475-4481
Author(s):  
Hai Nan Zhu ◽  
Jia Chuan Shi ◽  
Li Ping Liang
Keyword(s):  
Energy Saving ◽  
Reactive Power ◽  
Electrical Energy ◽  
Utilization Efficiency ◽  
Iron And Steel Industry ◽  
Production Plan ◽  
Electrical Load ◽  
Practical Application ◽  
Steel Rolling ◽  
Iron And Steel

The iron and steel industry annually consumes about 10% of electricity in China, while the utilization efficiency is relatively low. A two-step energy-saving method for steel enterprise is proposed in this paper. The production plan is regulated to minimize the energy utilized in steel rolling. The electrical load is forecasted according to the optimized steel-rolling plan and the reactive power is compensated to minimize the active power loss and voltage fluctuation. Practical application in Jigang Group Co., Ltd shows the efficiency of the proposed method.

Current State of Energy Consumption and Countermeasures of Energy Saving for Iron and Steel Industry in China

2013 ◽  
Vol 446-447 ◽  
pp. 1353-1357
Author(s):  
Zhe Qiao ◽  
Jin Zhou Liu ◽  
Jing Song Wang ◽  
Qing Guo Xue
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Steel Industry ◽  
High Energy ◽  
Iron And Steel Industry ◽  
Steel Rolling ◽  
Iron And Steel ◽  
Control Center ◽  
Process Energy ◽  
Steel Works

In this paper, we find that factors which affect energy consumption are steel ratio coefficient and process energy consumption by analyzing energy consumption of every process in integrated steel works. On this basis we point out the main reason for the high energy consumption of iron and steel industry in China is that integrated steel works examine the production process without system energy saving ideas. Therefore we propose the countermeasures of energy saving in iron and steel industry in China in aspects of energy management and control center, iron-making system, steel-making system, steel rolling system, as well as secondary energy recovery, which is aimed at providing a way for energy saving and emissions reduction of iron and steel industry in China.

Energy-Saving Analysis for Power System Reactive Power Compensation

2012 ◽  
Vol 608-609 ◽  
pp. 1151-1155 ◽  
Author(s):  
Xiao Hua Yuan ◽  
Xian Bin Dai
Keyword(s):  
Power System ◽  
Energy Saving ◽  
Transmission Lines ◽  
Reactive Power ◽  
Mechanical Energy ◽  
Rapid Development ◽  
Electrical Energy ◽  
Reactive Power Compensation ◽  
Electric And Magnetic Fields ◽  
Shunt Capacitor

The alternator output power in the power system can be divided into active and reactive power. The active power (in kW) is that part of the electrical energy for doing work and heat loss, such as the conversion of mechanical energy, heat, light. The reactive power (in kVar) is that part of the electrical energy for the exchange of electric and magnetic fields in the circuit, such as transformers, motors, through the magnetic field can be passed to convert electrical energy; transmission lines in cable systems and a variety of load reactance (inductance and capacitance), and consumption of reactive power. With the rapid development of power system to study how to reduce energy loss in the power system is a very meaningful. In this paper, The Shizuishan plant desulfurization project as an example, illustrates the shunt capacitor reactive power compensation of the power system energy saving.

The Technical Analysis of Energy Saving and Emission Reducing in China’s Iron and Steel Industry Based on LEAP Mode

2013 ◽  
Vol 634-638 ◽  
pp. 3163-3169
Author(s):  
Bao Qing Wang ◽  
Lei Zhang ◽  
De Qing Wang ◽  
Shuai Yin ◽  
Shu Yao
Keyword(s):  
Blast Furnace ◽  
Energy Saving ◽  
Steel Industry ◽  
Energy Demand ◽  
Co2 Reduction ◽  
Initial Energy ◽  
Planning System ◽  
Iron And Steel Industry ◽  
Iron And Steel ◽  
Reduction Potentials

To assess some technologies which are more appropriate for the development of the iron and steel industry in China, a model was developed based on the Long range Energy Alternatives Planning System (LEAP) to assess the energy saving and CO2 reduction potentials from 2010 to 2040. The results show that the top three saving energy potentials is non-blast furnace iron-making accounted for 6.85%, device enlargement for 5.85%, advanced blast furnace for 4.84%, and also show that the top three CO2 reduction potentials is device enlargement accounted for 11.7%, non-blast furnace iron-making for 6.21%, advanced coke and blast furnace 5.52%. In the Mitigation scenario, it can reduce 28% of the initial energy demand and 35.2% of CO2 emissions. It can provide a method and data for search energy saving and CO2 reduction potentials in iron and steel industry by LEAP model.

Research on Energy Consumption Analysis Method Based on Improved Fuzzy Analytic Hierarchy Process (FAHP) in Iron and Steel Industry

2012 ◽  
Vol 490-495 ◽  
pp. 2396-2399
Author(s):  
Dong Qiu ◽  
Xiao Bo Wang ◽  
Ying Ying Fu
Keyword(s):  
Energy Consumption ◽  
Production Process ◽  
Energy Saving ◽  
Steel Industry ◽  
Production System ◽  
Iron And Steel Industry ◽  
Analytic Hierarchy ◽  
Iron And Steel ◽  
Reduce Energy Consumption ◽  
Hierarchy Process

The relations between production process and energy consumption are made an in-depth application analysis and theory study with theory of systematic energy-saving , technique of intelligence analysis and optimization based on the background of study on energy-saving and reduce energy consumption. Making intensive research on theories of systematic energy-saving and analyzed with function mechanism and quantitative relation of the main production system, auxiliary production system and energy conversion system. It put forward the energy flow direction and energy consumption in each production process and the influence of material flow on energy consumption in iron and steel industry. The sequence of all kinds of material influence comprehensive energy consumption per ton steel and energy quantitative target of all factors influence energy consumption are worked out with improved fuzzy AHP(Analytic Hierarchy Process) which study of comprehensive energy consumption in typical iron and steel production process from the point of system. It has great immediate significance to guide drawing the scientific plan of economy-saving and reduce energy consumption in iron and steel industry

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