The Experts below are selected from a list of 10236 Experts worldwide ranked by ideXlab platform
Boqiang Lin - One of the best experts on this subject based on the ideXlab platform.
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is factor substitution an effective way to save energy and reduce emissions evidence from china s Metallurgical Industry
Journal of Cleaner Production, 2021Co-Authors: Boqiang LinAbstract:Abstract According to classical economics, the substitution of production factors could be used to reduce a specific input factor, but it is restricted by the irreplaceability of factors. As an essential production factor of production, can energy be substituted by other factors such as capital or labor? How significant is the substitution effect between factors or energy varieties? This paper attempts to study a paradigm to analyze the effectiveness of element substitution for energy saving. This paper explores the substitution relationship between inter-factor and inter-fuel from 1985 to 2017, which is based on the trans-log cost function. At the same time, the contribution of budget effect, substitution effect, output effect are analyzed in this paper as well as technological progress to the reduction of carbon emission intensity. As being found, the marketization of energy prices is underdeveloped, which hinders the substitution effect of energy in the Metallurgical Industry. The own-price elasticities of labor, energy, and capital are −0.3261, −0.1569, and −0.0706, respectively. The substitution of energy by capital is a more effective and sustainable alternative. Besides, a carbon tax can save 22.25 million TCE of energy consumption and reduce 62.67 million tons of carbon emissions in the whole Industry.
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towards energy conservation by improving energy efficiency evidence from china s Metallurgical Industry
Energy, 2021Co-Authors: Boqiang Lin, Siquan WangAbstract:Abstract Traditionally, improving the energy efficiency is considered to be essential to energy saving. However, it may not be as effective as expected due to the rebound effect. Focusing on China’s Metallurgical Industry, this study is targeted to measure the energy rebound effect and investigate whether improving energy efficiency can promote energy saving. A dynamic energy efficiency index, which can take both technological progress and energy utilization efficiency into account is first calculated. Then, the energy rebound effect of China’s Metallurgical Industry from the substitution and output channels is measured, and a better understanding of the energy rebound effect is thus provided. Finally, the influence of energy rebound effect on energy conservation potential is explored. Three main findings are obtained: First, the rebound effect through the substitution channel and output channel in the Metallurgical Industry are 12.34% and 25.4%, respectively. Second, the energy rebound effect in Eastern China is the largest, followed by Central and Western China. Third, the physical quantities of energy being offset by the rebound effect in China’s Metallurgical Industry are estimated to be 275.7 million tons of standard coal. These results demonstrate that additional measures should be taken in conjunction with energy efficiency improvement policies.
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quantitative assessment of factors affecting energy intensity from sector region and time perspectives using decomposition method a case of china s Metallurgical Industry
Energy, 2019Co-Authors: Boqiang LinAbstract:Abstract As a typical high-energy consumption Industry, the Metallurgical Industry has brought great challenges to energy saving and emission reduction in the whole China. Reducing the energy intensity of this crucial sector is of great importance to China’s green transition. This paper seeks to determine the drivers of the energy intensity change in China’s Metallurgical Industry during 2000–2016. To serve this purpose, we construct a comprehensive framework which combines Index Decomposition Analysis (IDA) and Production Decomposition Analysis (PDA) methods to fully decompose the change of energy intensity, and in this way more complete and in-depth insights can be provided. The results showed that the technological progress effect made the greatest contribution to the decline in energy intensity, with a cumulative reduction of 72.32%, while the labor-energy substitution is the greatest obstacle to the energy intensity reduction. As to the provincial contribution, except for Xinjiang and Inner Mongolia, all the other provinces make positive contributions to the energy intensity reduction in China’s Metallurgical Industry. Therein, Hebei, Hunan and Shannxi provinces rank the top one contributor in Eastern, Central, and Western China, respectively. Based on the empirical results, some targeted recommendations to formulate energy-saving policies for China’s Metallurgical Industry are put forward.
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exploring the green total factor productivity of china s Metallurgical Industry under carbon tax a perspective on factor substitution
Journal of Cleaner Production, 2019Co-Authors: Boqiang LinAbstract:Abstract The characteristics of high emissions and high energy consumption in Metallurgical Industry have brought great challenges to the green and low carbon transition in China. As a low-carbon economic instrument, carbon tax is generally considered to be an effective way to reduce CO2 emissions through raising energy cost, but whether it will promote the green total factor productivity (GTFP) of China's Metallurgical Industry is still unanswered. Under this background, this paper uses provincial panel data over years 2000–2015 to investigate the impact of carbon taxation on GTFP of Metallurgical Industry from the perspective of inter-fuel and inter-factor substitution. The lock-in mechanism is also incorporated in the three-stage estimation model to better reflect the asymmetric price response of factors and fuels. The results reveal that the slow marketization process of energy price and the rigid demand for energy in China's Metallurgical Industry hinder the substitution effect of energy. The implementation of carbon tax has limited effect on energy-saving and CO2 reduction in the Metallurgical Industry of China and levying a carbon tax has a negative effect on GTFP during the research period. Therefore, the government should not achieve CO2 reduction targets at the expense of green economic growth. GTFP is suggested to be considered in future assessment criteria in the process of transforming to low-carbon economy.
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good subsidies or bad subsidies evidence from low carbon transition in china s Metallurgical Industry
Energy Economics, 2019Co-Authors: Boqiang LinAbstract:Abstract Since the Metallurgical Industry has become the main source of China's carbon dioxide emissions and energy consumption in recent years, low-carbon transition in that Industry is of great significance for achieving China's carbon reduction targets. It is generally believed that phasing out fossil fuel subsidies is an effective way to reduce energy-related CO2 emissions since it can increase the energy prices and lower its consumption. This paper aims to investigate whether the energy subsidy removal can promote the low-carbon transition of China's Metallurgical Industry. Taking inter-fuel and inter-factor substitution effects as the link, we calculate the CO2 mitigation potential on the assumption that the subsidies for each category of fossil energy were eliminated. We find that the Metallurgical Industry has a sluggish reaction to the changes in energy price. Supposing eliminating the energy subsidies in the period of 2003–2015, the amount of reduced CO2 would be 487.286 million tons, accounting for a slight proportion of the total emissions in the Industry. But it is meaningful for the global CO2 mitigation since it approximates the whole CO2 emissions in Norway during the same period. These findings can provide some new insights for the energy subsidy issue and suggest that the additional measures are required to promote the low-carbon transition in China's Metallurgical Industry rather than just relying on the removal of fossil fuel subsidies.
Tiina Pursula - One of the best experts on this subject based on the ideXlab platform.
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eco efficiency indicator framework implemented in the Metallurgical Industry part 1 a comprehensive view and benchmark
International Journal of Life Cycle Assessment, 2016Co-Authors: Ida Ronnlund, M A Reuter, Susanna Horn, Jatta Aho, Maija Aho, Minna Paallysaho, Laura Ylimaki, Tiina PursulaAbstract:Purpose The purpose of this work was to develop an indicator framework for the environmental sustainability benchmarking of products produced by the Metallurgical Industry. Sustainability differentiation has become an important issue for companies throughout the value chain. Differentiation is sometimes not attainable, due to the use of average data, lack of comparative data, certain issues being overshadowed by others, and a very narrow palette of indicators dominating the current sustainability assessments. There is a need for detailed and credible analyses, which show the current status and point out where improvements can be made. The indicator framework is developed to give a comprehensive picture of eco-efficiency, to provide methods that enable relevant comparisons as well as the tools for communicating the results. In this way, the methodology presented in this study aims to make differentiation easier and thus aid companies in driving the development toward more sustainable solutions.
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eco efficiency indicator framework implemented in the Metallurgical Industry part 1 a comprehensive view and benchmark
International Journal of Life Cycle Assessment, 2016Co-Authors: Ida Ronnlund, M A Reuter, Susanna Horn, Jatta Aho, Maija Aho, Minna Paallysaho, Laura Ylimaki, Tiina PursulaAbstract:The purpose of this work was to develop an indicator framework for the environmental sustainability benchmarking of products produced by the Metallurgical Industry. Sustainability differentiation has become an important issue for companies throughout the value chain. Differentiation is sometimes not attainable, due to the use of average data, lack of comparative data, certain issues being overshadowed by others, and a very narrow palette of indicators dominating the current sustainability assessments. There is a need for detailed and credible analyses, which show the current status and point out where improvements can be made. The indicator framework is developed to give a comprehensive picture of eco-efficiency, to provide methods that enable relevant comparisons as well as the tools for communicating the results. In this way, the methodology presented in this study aims to make differentiation easier and thus aid companies in driving the development toward more sustainable solutions. The framework is based on the existing indicator framework Gaia Biorefiner, which is primarily intended for bio-based products. In this work, the framework was further developed for application in the Metallurgical Industry. The indicator framework is built by first looking at the issues, which are critical to the environment and global challenges seen today and which the activities of the Metallurgical Industry may have an impact on. Based on these issues, suitable indicators are chosen if they exist and built if they do not. The idea is that all indicators in a group form a whole, showing areas of innovation while refraining from aggregating and weighting, which often compromise a comprehensive and objective view. Both qualitative and quantitative indicators are included. The indicators are constructed following the criteria set by the EU and OECD for building indicators. Each indicator further has a benchmark. The rules for building the benchmark are connected to the indicators. Suitable data sources and criteria for the benchmark and the indicators are gathered from literature, publicly available databases, and commercial LCA software. The use of simulation tools for attaining more reliable data is also studied. The result is a visual framework consisting of ten indicator groups with one to five indicators each, totaling up to 31 indicators. These are visualized in a sustainability indicator “flower.” The flower can be further opened up to study each indicator and the reasons behind the results. The sustainability benchmark follows a methodology that is based on utilization of baseline data and sustainability criteria or limits. A simulation approach was included in the methodology to address the problem with data scarcity and data reliability. The status of the environment, current production technologies, location-specific issues, and process-specific issues all affect the result, and the aim of finding relevant comparisons that will support sustainability differentiation is answered by a scalable scoping system. A new framework and its concise visualization has been built for assessing the eco-efficiency of products from the Metallurgical Industry, in a way that aims to answer the needs of the Industry. Since there is a baseline, against which each indicator can be benchmarked, a sustainability indicator “flower” can be derived, one of the key innovations of this methodology. This approach goes beyond the usual quantification, as it is also scalable and linked to technology and its fundamental parameters. In part 2, a case study “A case study from the copper Industry” tests and illustrates the methodology.
Ida Ronnlund - One of the best experts on this subject based on the ideXlab platform.
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eco efficiency indicator framework implemented in the Metallurgical Industry part 1 a comprehensive view and benchmark
International Journal of Life Cycle Assessment, 2016Co-Authors: Ida Ronnlund, M A Reuter, Susanna Horn, Jatta Aho, Maija Aho, Minna Paallysaho, Laura Ylimaki, Tiina PursulaAbstract:Purpose The purpose of this work was to develop an indicator framework for the environmental sustainability benchmarking of products produced by the Metallurgical Industry. Sustainability differentiation has become an important issue for companies throughout the value chain. Differentiation is sometimes not attainable, due to the use of average data, lack of comparative data, certain issues being overshadowed by others, and a very narrow palette of indicators dominating the current sustainability assessments. There is a need for detailed and credible analyses, which show the current status and point out where improvements can be made. The indicator framework is developed to give a comprehensive picture of eco-efficiency, to provide methods that enable relevant comparisons as well as the tools for communicating the results. In this way, the methodology presented in this study aims to make differentiation easier and thus aid companies in driving the development toward more sustainable solutions.
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eco efficiency indicator framework implemented in the Metallurgical Industry part 1 a comprehensive view and benchmark
International Journal of Life Cycle Assessment, 2016Co-Authors: Ida Ronnlund, M A Reuter, Susanna Horn, Jatta Aho, Maija Aho, Minna Paallysaho, Laura Ylimaki, Tiina PursulaAbstract:The purpose of this work was to develop an indicator framework for the environmental sustainability benchmarking of products produced by the Metallurgical Industry. Sustainability differentiation has become an important issue for companies throughout the value chain. Differentiation is sometimes not attainable, due to the use of average data, lack of comparative data, certain issues being overshadowed by others, and a very narrow palette of indicators dominating the current sustainability assessments. There is a need for detailed and credible analyses, which show the current status and point out where improvements can be made. The indicator framework is developed to give a comprehensive picture of eco-efficiency, to provide methods that enable relevant comparisons as well as the tools for communicating the results. In this way, the methodology presented in this study aims to make differentiation easier and thus aid companies in driving the development toward more sustainable solutions. The framework is based on the existing indicator framework Gaia Biorefiner, which is primarily intended for bio-based products. In this work, the framework was further developed for application in the Metallurgical Industry. The indicator framework is built by first looking at the issues, which are critical to the environment and global challenges seen today and which the activities of the Metallurgical Industry may have an impact on. Based on these issues, suitable indicators are chosen if they exist and built if they do not. The idea is that all indicators in a group form a whole, showing areas of innovation while refraining from aggregating and weighting, which often compromise a comprehensive and objective view. Both qualitative and quantitative indicators are included. The indicators are constructed following the criteria set by the EU and OECD for building indicators. Each indicator further has a benchmark. The rules for building the benchmark are connected to the indicators. Suitable data sources and criteria for the benchmark and the indicators are gathered from literature, publicly available databases, and commercial LCA software. The use of simulation tools for attaining more reliable data is also studied. The result is a visual framework consisting of ten indicator groups with one to five indicators each, totaling up to 31 indicators. These are visualized in a sustainability indicator “flower.” The flower can be further opened up to study each indicator and the reasons behind the results. The sustainability benchmark follows a methodology that is based on utilization of baseline data and sustainability criteria or limits. A simulation approach was included in the methodology to address the problem with data scarcity and data reliability. The status of the environment, current production technologies, location-specific issues, and process-specific issues all affect the result, and the aim of finding relevant comparisons that will support sustainability differentiation is answered by a scalable scoping system. A new framework and its concise visualization has been built for assessing the eco-efficiency of products from the Metallurgical Industry, in a way that aims to answer the needs of the Industry. Since there is a baseline, against which each indicator can be benchmarked, a sustainability indicator “flower” can be derived, one of the key innovations of this methodology. This approach goes beyond the usual quantification, as it is also scalable and linked to technology and its fundamental parameters. In part 2, a case study “A case study from the copper Industry” tests and illustrates the methodology.
Yutaka Tamaura - One of the best experts on this subject based on the ideXlab platform.
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CH4-utilization and CO2-mitigation in the Metallurgical Industry via solar thermochemistry
Energy Conversion and Management, 1996Co-Authors: Aaron Steinfeld, Peter Kuhn, Yutaka TamauraAbstract:The industrial production of metals by carbothermic reduction of their oxides are high-temperature energy-intensive processes that release vast amounts of greenhouse gases and other pollutants to the atmosphere. A thermodynamic analysis and related experimental studies indicate the technical feasibility of reducing these emissions by combining the reduction of metal oxides with the reforming of natural gas for the co-production of metals and synthesis gas (as feed stock for methanol processing). Replacing fossil fuels with solar energy as the source of process heat further reduces CO2 emissions to zero, and upgrades the calorific value of the products.
Xavier Py - One of the best experts on this subject based on the ideXlab platform.
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selection and characterization of recycled materials for sensible thermal energy storage
Solar Energy Materials and Solar Cells, 2012Co-Authors: Matilde Navarro, Antoni Gil, A I Fernandez, Monica Martinez, Regis Olives, Luisa F. Cabeza, Xavier PyAbstract:Abstract Alternative low cost materials are evaluated through the valorization of by-products derived from mining and Metallurgical Industry for solid sensible heat based energy storage systems. They were used either as received or formulated as aggregates in mortars, and their thermal and mechanical properties were characterized. A selection methodology was applied in order to compare them with available materials found in the literature for applications as (STES) materials, and with materials from Cambridge Educational Software (CES) Selector database. It was demonstrated that these recycled materials have a high potential for these thermal energy storage applications.
