scholarly journals Energy Consumption and CO2 Emissions in Ironmaking and Development of a Novel Flash Technology

Metals ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 54 ◽  
Author(s):  
Hong Yong Sohn
Keyword(s):  
Blast Furnace ◽  
Energy Consumption ◽  
Co2 Emissions ◽  
New Technologies ◽  
New Technology ◽  
Furnace Process ◽  
Alternative Technologies ◽  
Recent Developments ◽  
Process Energy ◽  
Iron Ore Concentrate

The issues of energy consumption and CO2 emissions of major ironmaking processes, including several new technologies, are assessed. These two issues are interconnected in that the production and use of fuels to generate energy add to the total amount of CO2 emissions and the efforts to sequester or convert CO2 require energy. The amounts of emissions and energy consumption in alternate ironmaking processes are compared with those for the blast furnace, currently the dominant ironmaking process. Although more than 90% of iron production is currently through the blast furnace, intense efforts are devoted to developing alternative technologies. Recent developments in alternate ironmaking processes, which are largely driven by the needs to decrease CO2 emissions and energy consumption, are discussed in this article. This discussion will include the description of the recently developed novel flash ironmaking technology. This technology bypasses the cokemaking and pelletization/sintering steps, which are pollution prone and energy intensive, by using iron ore concentrate. This transformational technology renders large energy saving and decreased CO2 emissions compared with the blast furnace process. Economic analysis indicated that this new technology, when operated using natural gas, would be economically feasible. As a related topic, we will also discuss different methods for computing process energy and total energy requirements in ironmaking.

scholarly journals THE USE OF HYBRID VEHICLES AS A PROPOSAL FOR REDUCING CO2 EMISSIONS AND ITS CONTRIBUTION TO REDUCING GREENHOUSE GAS EMISSIONS

2009 ◽  
Vol 8 (1) ◽  
pp. 07
Author(s):  
C. A. R. De Carvalho ◽  
W. Q. Lamas
Keyword(s):  
Carbon Dioxide ◽  
Energy Consumption ◽  
Fossil Fuels ◽  
Climate Changes ◽  
New Technologies ◽  
New Technology ◽  
Hybrid Vehicles ◽  
Pollutant Emissions ◽  
Gas Emissions ◽  
Global Concern

The problems related to energy consumption and pollutant emissions for thetransport sector represent a major global concern regarding climate changes caused by greenhouse gases, directly related to the increased level of gas emissions from fossil fuels , the main one being carbon dioxide. One way tominimize this problem is through the introduction of new technologies. Hybrid cars are one of the new technology options that has the main advantage of reducing fuel consumption and therefore reducing the amount of CO2 in the atmosphere. This paper gives an introduction to hybrid vehicles, with the aim of presenting their main advantages and evaluate their impact on emissions of CO2 in the Brazilian fleet, compared to conventional vehicles.

Challenges and Issues in E-Banking Services and Operations in Developing Countries

2016 ◽  
pp. 237-281
Author(s):  
Preeti Rana ◽  
Durgesh Pandey
Keyword(s):  
Developing Countries ◽  
Banking Sector ◽  
New Technologies ◽  
New Technology ◽  
Banking Services ◽  
Banking And Finance ◽  
Banking Service ◽  
Wide Range ◽  
The World ◽  
Recent Developments

In recent years we have seen a number of changes in banking sector of India. Main objective of banks is to create more value for customers; that is why most of the banks have begun to take an innovative approach for this purpose. In the world of banking and finance, nothing stands still. Now a day's banking activities is not limited to deposit and lending money to customers Apart from traditional business, banks provide a wide range of services to satisfy the needs of all types of customers whether it is financial or non-financial needs from the smallest account holder to the largest company and in some cases of non-customers. As a result of recent developments, the entire banking industry has restructured and new technologies are also introduced to make it competitive. Revolution of Information Technology has made it possible to provide ease and flexibility in operations to customers thus making life simpler and easier so bank can provide a variety of products and services to the customers. The E-Banking process has changed the way of working of banks across the world. In the chapter, the author reviews the literature on “The issues and challenges of e-banking service operation” what is the perception of people towards E-Banking in different developing countries?” As E-Banking is an emerging concept in the field of commerce and banking. This paper furnishes the study of E-banking in developing countries through an analysis of content & existing literature that focused on developing countries. The main purpose of the study is to present the current level of research on E-banking in developing countries. Electronic banking (e-banking) is the new technology in banking environment that allows the bank customers to do banking activities at any time and from any place.

scholarly journals An Artificial Neural Network Approach to Forecast the Environmental Impact of Data Centers

Information ◽  
2019 ◽  
Vol 10 (3) ◽  
pp. 113 ◽  
Author(s):  
Joao Ferreira ◽  
Gustavo Callou ◽  
Albert Josua ◽  
Dietmar Tutsch ◽  
Paulo Maciel
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Energy Consumption ◽  
Co2 Emissions ◽  
Data Center ◽  
Data Centers ◽  
New Technologies ◽  
Operational Costs ◽  
The Us ◽  
Artificial Neural

Due to the high demands of new technologies such as social networks, e-commerce and cloud computing, more energy is being consumed in order to store all the data produced and provide the high availability required. Over the years, this increase in energy consumption has brought about a rise in both the environmental impacts and operational costs. Some companies have adopted the concept of a green data center, which is related to electricity consumption and CO2 emissions, according to the utility power source adopted. In Brazil, almost 70% of electrical power is derived from clean electricity generation, whereas in China 65% of generated electricity comes from coal. In addition, the value per kWh in the US is much lower than in other countries surveyed. In the present work, we conducted an integrated evaluation of costs and CO2 emissions of the electrical infrastructure in data centers, considering the different energy sources adopted by each country. We used a multi-layered artificial neural network, which could forecast consumption over the following months, based on the energy consumption history of the data center. All these features were supported by a tool, the applicability of which was demonstrated through a case study that computed the CO2 emissions and operational costs of a data center using the energy mix adopted in Brazil, China, Germany and the US. China presented the highest CO2 emissions, with 41,445 tons per year in 2014, followed by the US and Germany, with 37,177 and 35,883, respectively. Brazil, with 8459 tons, proved to be the cleanest. Additionally, this study also estimated the operational costs assuming that the same data center consumes energy as if it were in China, Germany and Brazil. China presented the highest kWh/year. Therefore, the best choice according to operational costs, considering the price of energy per kWh, is the US and the worst is China. Considering both operational costs and CO2 emissions, Brazil would be the best option.

Put a Coalatom in Your Tank: The Compelling Case for a Marriage of Coal and Nuclear Energy

2006 ◽  
Author(s):  
Scott R. Penfield ◽  
Charles O. Bolthrunis
Keyword(s):  
Co2 Emissions ◽  
Nuclear Energy ◽  
New Technologies ◽  
Liquid Fuels ◽  
Transportation Fuels ◽  
Energy Applications ◽  
Domestic Security ◽  
Process Energy ◽  
Technical Basis ◽  
And Storage

Increasing costs and security concerns with present fossil energy sources, plus environmental concerns related to CO2 emissions and the emergence of new technologies in the energy and transportation sectors set the stage for a marriage of convenience between coal and nuclear energy. As the price of oil continues to increase and supply becomes increasingly constrained, coal offers a secure domestic alternative to foreign oil as a source of liquid fuels. However, conventional technologies for converting coal to liquid fuels produce large quantities of CO2 that must be released or sequestered. Advanced nuclear technologies, particularly the High-Temperature Gas-Cooled Reactor (HTGR), have the potential to produce hydrogen via water splitting; however, the transportation and storage of hydrogen are significant barriers to the “Holy Grail”, the Hydrogen Economy. In a coal/nuclear marriage, the hydrogen and oxygen provided by nuclear energy are joined with coal as a source of carbon to provide liquid fuels with negligible CO2 release from the process. In combination with emerging hybrid vehicles, fuels based on a coal/nuclear marriage promise stable prices, increased domestic security and a reduction in CO2 emissions without the need to completely replace our transportation fuels infrastructure. The intent of this paper is to outline the technical basis for the above points and to show that process energy applications of nuclear energy can provide the basis for answering some of the tougher questions related to energy and the environment.

Incumbents’ response to demand-side policies: The case of solar and wind power sectors

2019 ◽  
Vol 46 (5) ◽  
pp. 648-660 ◽  
Author(s):  
Hyundo Choi
Keyword(s):  
Wind Power ◽  
Power Plants ◽  
New Technologies ◽  
New Technology ◽  
Economic Incentive ◽  
Global Market ◽  
Demand Side ◽  
Alternative Technologies ◽  
Sustainable Technologies ◽  
Regulatory Policies

Abstract This work examines incumbents’ responses to two demand-side policies by focusing on their investment in new sustainable technologies. It focuses on how economic incentive and regulatory policies shape the market environment and this affects incumbents’ investment in new technologies. By using mediation and difference-in-difference regression models, it examines incumbent utilities’ investment in solar and wind power plants. It reveals that incumbent utilities under the economic incentive policy more invest in the solar and wind power than those under the regulatory policy, as it places stronger competitive pressure on incumbent utilities to adapt to the new technology. Further, incumbents prefer alternative technologies complementary to their existing competences and expand their investment in a global market under policy-induced competitive pressures.

Impact of Laser-Based Technologies in the Energy-Consumption of Metal Cutters: Comparison between Commercially Available Systems

2011 ◽  
Vol 473 ◽  
pp. 809-815 ◽  
Author(s):  
Marta Oliveira ◽  
João P. Santos ◽  
Fernando G. Almeida ◽  
Ana Reis ◽  
João P. Pereira ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Electricity Consumption ◽  
Electrical Energy ◽  
Work Conditions ◽  
Design Guidelines ◽  
Machining Processes ◽  
Alternative Technologies ◽  
Similar Work ◽  
Definition Of ◽  
Process Energy

This paper introduces a framework for the Ecodesign of sheet metal cutters, which targets the definition of a set of design guidelines for this type of machine-tools, based on the contribution of the main equipment sub-systems to the processing and environmental impacts associated to their electrical energy consumption. A comparative study of commercially available Laser cutting equipments, using CO2 or doped fiber as the energy source, is described. Two parallel analysis of electricity consumption have been carried out: (1) the observation of CO2-Laser cutters usage, production modes and work conditions in real industrial environments, and (2) a comparison between these and a Fiber-Laser equipment, for a similar work order (material and thickness). The specific process energy with the different equipments was calculated, and confirms the importance of alternative technologies and practices for the energy efficiency of machining processes.

Study on the Relationship between the Energy Carbon Emission and Economic Growth in Hebei Province

2014 ◽  
Vol 623 ◽  
pp. 310-316
Author(s):  
Yan Zhang ◽  
Chang Wang
Keyword(s):  
Economic Growth ◽  
Energy Consumption ◽  
Co2 Emissions ◽  
Emission Reduction ◽  
Environmental Kuznets Curve ◽  
Carbon Emission ◽  
New Technology ◽  
Hebei Province ◽  
Kuznets Curve ◽  
The Impact

This article simply reviewed the carbon emission situation in Hebei province from 1996 to 2011, and tried to use environmental Kuznets curve to analysis the impact of the economic growth of CO2 emissions on the energy consumption. The regression results show that CO2 emissions and economic growth in line with the environmental Kuznets curve inverted U-shaped, but it is in the left hemisphere of the curve, namely, as the growth of the economy, the CO2 emissions will continue to increase, so the carbon emission reduction work in Hebei province is still very heavy, we should change the energy consumption situation actively in the environment, adjust the industrial structure, develop new technology vigorously, and promote the innovation of emission reduction.

scholarly journals Comparison of Energy Consumption and CO2 Emission for Three Steel Production Routes—Integrated Steel Plant Equipped with Blast Furnace, Oxygen Blast Furnace or COREX

Metals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 364 ◽  
Author(s):  
Jiayuan Song ◽  
Zeyi Jiang ◽  
Cheng Bao ◽  
Anjun Xu
Keyword(s):  
Blast Furnace ◽  
Energy Consumption ◽  
Co2 Emissions ◽  
Steel Industry ◽  
Steel Plant ◽  
Process Models ◽  
Coal Consumption ◽  
Coking Coal ◽  
Oxygen Blast Furnace ◽  
Oxygen Blast

High CO2 emissions and energy consumption have greatly restricted the development of China’s iron and steel industry. Two alternative ironmaking processes, top gas recycling-oxygen blast furnace (TGR-OBF) and COREX®, can reduce CO2 emissions and coking coal consumption in the steel industry when compared with a conventional blast furnace (BF). To obtain parameters on the material flow of these processes, two static process models for TGR-OBF and COREX were established. Combining the operating data from the Jingtang steel plant with established static process models, this research presents a detailed analysis of the material flows, metallurgical gas generation and consumption, electricity consumption and generation, comprehensive energy consumption, and CO2 emissions of three integrated steel plants (ISP) equipped with the BF, TGR-OBF, and COREX, respectively. The results indicated that the energy consumption of an ISP with the TGR-OBF was 16% and 16.5% lower than that of a conventional ISP and an ISP with the COREX. Compared with a conventional ISP, the coking coal consumption in an ISP with the TGR-OBF and an ISP with the COREX were reduced by 39.7% and 100% respectively. With the International Energy Agency factor, the ISP with the TGR-OBF had the lowest net CO2 emissions, which were 10.8% and 35.0% lower than that of a conventional ISP and an ISP with the COREX. With the China Grid factor, the conventional ISP had the lowest net CO2 emissions—2.8% and 24.1% lower than that of an ISP with the TGR-OBF and an ISP with the COREX, respectively.

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