Energy Flow’s Consumption Analysis in Iron & Steel Factory

2012 ◽  
Vol 524-527 ◽  
pp. 1967-1971
Author(s):  
Jing Yu Liu ◽  
Jiu Ju Cai
Keyword(s):  
Energy Consumption ◽  
Energy Flow ◽  
Flow Analysis ◽  
Comparison Method ◽  
Flow Diagram ◽  
Analysis Model ◽  
Flow Process ◽  
Iron And Steel ◽  
Steel Factory ◽  
Process Energy

The energy flow process in iron & steel factory is composed of the production, conversion, using of all sorts of energy and waste gas removing. In accordance with the energy flow process, make use of the law of energy conservation and conversion, the energy flow diagram from the energy-consumption analysis, and it is constructed. The energy flow analysis model of iron & steel is designed based on the energy flow diagram. To adopt comparison method, the influence of each process energy-consumption on the energy consumption of iron and steel enterprise also discussed.

Overview of Energy Consumption Model for Manufacturing Processes

2011 ◽  
Vol 130-134 ◽  
pp. 2288-2293 ◽  
Author(s):  
Bing Bing Li ◽  
Hong Chao Zhang ◽  
Qing Di Ke ◽  
Li Ding ◽  
Lei Zhang
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Flow ◽  
Flow Analysis ◽  
Manufacturing Processes ◽  
Comprehensive Overview ◽  
Improve Energy Efficiency ◽  
Energy Consumption Model ◽  
Whole Life Cycle ◽  
Collection Methods

The energy consumption for manufacturing processes is the largest impact contributor in various characterization categories, based on the assessment of environmental effects during the whole life cycle. It is necessary to investigate the manufacturing processes in depth to find out mechanism that can improve energy efficiency. This paper presents a comprehensive overview on two important aspects of energy consumption models for manufacturing processes: 1) two data collection methods: top-down and bottom-up; 2) two process-based analytical methods: thermodynamic model (including energy flow analysis and exergy analysis), and mechanical model. These models can improve energy efficiency.

Study on the Electricity Generation in Steel Production Concerning the Recovery of Waste Heat and Energy

2012 ◽  
Vol 511 ◽  
pp. 40-45
Author(s):  
Jian Jun Wang ◽  
Hong Juan Li ◽  
Hua Meng
Keyword(s):  
Energy Consumption ◽  
Energy Flow ◽  
Electricity Generation ◽  
Waste Heat ◽  
Steel Production ◽  
Economic Benefits ◽  
The Self ◽  
Energy Resources ◽  
Flow Models ◽  
Steel Factory

A lot of energy resources such as coal, electricity and oils, are consumed during the steel production, and simultaneously a variety of waste heat and energy is produced. If most of the waste heat and energy can be recovered by the self-supply power plant and other generating devices, then the electricity consumed by the factory can be supplied by itself, which can be called the “autarky mode of electricity”. The autarky mode of electricity can improve the recovery of the waste heat and energy, and thus reduce the energy consumption of an iron & steel factory. Based on the BF-BOF steelmaking routes, the energy-flow models for the electricity generating with waste heat and energy are constructed. The autarky modes of electricity of the factories with different production scales are put forward, and the contribution of the mode to energy saving and economic benefits is analyzed.

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.

scholarly journals Advances in Energy Conservation of China Steel Industry

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Wenqiang Sun ◽  
Jiuju Cai ◽  
Zhu Ye
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Steel Industry ◽  
Energy Flow ◽  
Research Progress ◽  
Crude Steel ◽  
Direct Energy ◽  
User Demand ◽  
Process Energy ◽  
Energy Quantity

The course, technical progresses, and achievements of energy conservation of China steel industry (CSI) during 1980–2010 were summarized. Then, the paper adoptede-pmethod to analyze the variation law and influencing factors of energy consumptions of large- and medium-scale steel plants within different stages. It is pointed out that energy consumption per ton of crude steel has been almost one half lower in these thirty years, with 60% as direct energy conservation owing to the change of process energy consumption and 40% as indirect energy conservation attributed to the adjustment of production structure. Next, the latest research progress of some key common technologies in CSI was introduced. Also, the downtrend of energy consumption per ton of crude steel and the potential energy conservation for CSI during 2011–2025 were forecasted. Finally, it is indicated that the key topic of the next 15 years’ research on the energy conservation of CSI is the synergistic operation of material flow and energy flow. It could be achieved by the comprehensive study on energy flow network optimization, such as production, allocation, utilization, recovery, reuse, and resource, according to the energy quantity, quality, and user demand following the first and second laws of thermodynamics.

The Analysis of Energy and Environmental Efficiency Based on Input-Output Model

2010 ◽  
Vol 34-35 ◽  
pp. 1253-1257
Author(s):  
Wei Deng
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Quantitative Analysis ◽  
Mathematical Models ◽  
Data Handling ◽  
Environmental Load ◽  
Input Output ◽  
Iron And Steel ◽  
Unit Process ◽  
Process Energy

Input-output method can conveniently analyze energy consumption and environmental load for iron and steel enterprises. It can visually express production manufacturing statement and the consumption of energy and non-energy. Mathematical models are helpful for quantitative analysis and data handling. In addition, it’s useful to analyze main affected factors. Unit process energy consumption and steel ratio directly affect energy efficiency, which can be analyzed by e-p method.

Analysis of Material and Energy Flow Variation for Energy Saving and Consumption Reduction in Pelletizing Process

2011 ◽  
Vol 383-390 ◽  
pp. 3566-3570
Author(s):  
Hui Zhao ◽  
Zhen Song
Keyword(s):  
Energy Consumption ◽  
Resource Utilization ◽  
Material Flow ◽  
Energy Flow ◽  
Carbon Flow ◽  
Flow Mechanism ◽  
Flow Process ◽  
Consumption Reduction ◽  
Reduce Energy Consumption ◽  
Physical And Chemical

To explore the mechanism for saving energy and reducing consumption in pelletizing process, the pelletizing process is decomposed correlatively into two parts: the material flow process and energy flow process. On this basis, it is studied that the physical and chemical changes and the flow mechanism in ferrite flow and carbon flow respectively, by analyzing the changes and conversion of the ferrite and carbon flow in pelletizing process, variation of material and energy flow has been summarized, using the law to guide the production, minimizing consumption of energy and maximizing resource utilization will be achieved. It provides another path to reduce energy consumption for steel plant.

Energy Flow Analysis of Beijing’s Energy Consumption Based on EBS

2012 ◽  
Vol 524-527 ◽  
pp. 3097-3100
Author(s):  
Jian Xun Qi ◽  
Gao Qiang Zhao ◽  
Sen Guo ◽  
Yang Han
Keyword(s):  
Energy Consumption ◽  
Energy Flow ◽  
Process Development ◽  
Flow Analysis ◽  
Balance Sheet ◽  
Development Trend ◽  
Energy Utilization ◽  
Total Energy Consumption ◽  
Consumption Situation ◽  
Energy Economy

Beijing is the second largest energy consumption city in China, so it is necessary of analyzing its energy consumption situation. The energy flow of Beijing’s energy consumption was analyzed by Energy Balance Sheet (EBS), which is an effective tool for researching energy economy and energy sustainable development. Different stages of energy flow in the process of Beijing’s energy utilization were analyzed by EBS, and the indicators including total energy consumption, comparison, structure, dynamic changes and energy intensity at all stages of energy flow were extracted. Further, the structure feature, change process, development trend of Beijing’s energy consumption was obtained, and the relationship between resources, economy, and energy was explained. Finally, some suggestions for the next focusing work on effective utilization of Beijing’s energy were proposed.

Energy Flow Analysis of Energy, Social Economy and Environment Complex System in Sichuan Province, China

2013 ◽  
Vol 295-298 ◽  
pp. 970-975
Author(s):  
Wei Liu ◽  
Han Qing Huan ◽  
Dong Dong Chen ◽  
Liang Liu ◽  
Chao Fan Chen
Keyword(s):  
Complex System ◽  
Energy Consumption ◽  
Energy Flow ◽  
Flow Analysis ◽  
Social Economy ◽  
Modern Society ◽  
Sichuan Province ◽  
Annual Growth Rate ◽  
Total Energy Consumption ◽  
Coordination Degree

Energy is an important asset in modern society. According to the relative data and materials, the energy flowchart of Sichuan province in 2010 was drew at first, then the energy input, output, consumption, corresponding pollutants emission of Sichuan province from 2005 to 2010 were analyzed simultaneously. The results show that the total energy consumption increases rapidly with an average annual growth rate of 10.8%, energy external dependence is little. Energy consumption structure need to be further optimized, and the proportion of traditional fossil energy is larger, which is 77.18% in 2010. Then, we establish the evaluation index of regional energy, social economy and environment complex system, and the coordination degree between energy, economy and environment system in Sichuan province from 2005 to 2010 is analyzed, the results show that the coordination degree is high, and the comprehensive coordination degree of complex system is 0.97238 in 2010. Finally, suggestions of energy development strategy, optimization management of energy flow, energy conservation and emission reduction in Sichuan province are proposed on the basis of the analysis results.

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