Analysis of Embodied Energy Consumption and Greenhouse Gas (GHG) Emissions in Chinese Manufacturing Industry

This paper attempts to discuss the embodied energy consumption and embodied greenhouse gas emissions in manufacturing industry. Based the on input-output theory, this paper establishes the calculation model, which gives the calculation of embodied energy consumption and embodied greenhouse gas emissions of 2002 and 2007 respectively. By comparison, it draws the conclusion that the total direct energy consumption of 2007 is much more than the year of 2002, while the total embodied energy consumption is less than the year of 2002. However, Non-metallic mineral products, Metal smelting and pressing and Electric equipment and machinery perform otherwise. The reason accounting for the calculation results is that the embodied energy intensity is greatly decreased.

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Energy Consumption and Greenhouse Gas Emissions of Nickel Products

Energies ◽

10.3390/en13215664 ◽

2020 ◽

Vol 13 (21) ◽

pp. 5664

Author(s):

Wenjing Wei ◽

Peter B. Samuelsson ◽

Anders Tilliander ◽

Rutger Gyllenram ◽

Pär G. Jönsson

Keyword(s):

Energy Consumption ◽

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Process Model ◽

Ghg Emissions ◽

Primary Energy ◽

Nickel Metal ◽

Gas Emissions ◽

Nickel Smelting ◽

Ore Grade

The primary energy consumption and greenhouse gas emissions from nickel smelting products have been assessed through case studies using a process model based on mass and energy balance. The required primary energy for producing nickel metal, nickel oxide, ferronickel, and nickel pig iron is 174 GJ/t alloy (174 GJ/t contained Ni), 369 GJ/t alloy (485 GJ/t contained Ni), 110 GJ/t alloy (309 GJ/t contained Ni), and 60 GJ/t alloy (598 GJ/t contained Ni), respectively. Furthermore, the associated GHG emissions are 14 tCO2-eq/t alloy (14 tCO2-eq/t contained Ni), 30 t CO2-eq/t alloy (40 t CO2-eq/t contained Ni), 6 t CO2-eq/t alloy (18 t CO2-eq/t contained Ni), and 7 t CO2-eq/t alloy (69 t CO2-eq/t contained Ni). A possible carbon emission reduction can be observed by comparing ore type, ore grade, and electricity source, as well as allocation strategy. The suggested process model overcomes the limitation of a conventional life cycle assessment study which considers the process as a ‘black box’ and allows for an identification of further possibilities to implement sustainable nickel production.

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Environmental Changes Produced by Household Consumption

Energies ◽

10.3390/en14185730 ◽

2021 ◽

Vol 14 (18) ◽

pp. 5730

Author(s):

Miguel A. Martínez ◽

Ángeles Cámara

Keyword(s):

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Manufacturing Industry ◽

Environmental Changes ◽

Ghg Emissions ◽

Household Consumption ◽

Retail Trade ◽

Gas Emissions ◽

Before And After ◽

The Impact

This paper analyzes the impact of the fall in household consumption after an economic crisis in Spain on greenhouse gas emissions. To this end, household consumption is differentiated by the age of the main provider by using a conversion matrix that relates consumption groups to activity sectors. A multisectoral model was used to quantify and compare the environmental impact caused by the consumption of each age group, indicating that the older the age of the main household provider, the smaller the reduction in GHG emissions associated with their consumption. The results facilitate an analysis of how the greenhouse gas emissions of the different sectors of the Spanish economy, associated with the population under study, varied before and after the 2008 crisis, and confirm that the sectors with the greatest reduction in emissions were, in this order, extractive industries, construction, manufacturing industry, wholesale and retail trade and transport and storage. This is relevant for decision making in the field of environmental policies in crises, akin to the one the world is currently experiencing.

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Energy Consumption and Greenhouse Gas Emissions During Ferromolybdenum Production

Journal of Sustainable Metallurgy ◽

10.1007/s40831-019-00260-8 ◽

2020 ◽

Vol 6 (1) ◽

pp. 103-112

Author(s):

Wenjing Wei ◽

Peter B. Samuelsson ◽

Anders Tilliander ◽

Rutger Gyllenram ◽

Pär G. Jönsson

Keyword(s):

Energy Consumption ◽

Total Energy ◽

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Ghg Emissions ◽

Copper Mining ◽

Ghg Emission ◽

Gas Emissions ◽

Production Stages ◽

Ore Grade

AbstractMolybdenum is mainly used as an alloy material in the iron and steel industry and typically in the form of ferromolybdenum (FeMo). The current study aims to evaluate the energy consumption and greenhouse gas emissions (GHG) of four ferromolybdenum production cases using inventory inputs from a process model based on mass and energy conservations. The total energy required for producing 1 tonne of FeMo can vary between 29.1 GJ/t FeMo and 188.6 GJ/t FeMo. Furthermore, the corresponding GHG emissions differ from 3.16 tCO2-eq/t FeMo to 14.79 tCO2-eq/t FeMo. The main variances are from the mining and beneficiation stages. The differences in these stages come from the beneficiation degree (ore grade) and the mine type (i.e., co-product from copper mining). Furthermore, the mine type has a larger impact on the total energy consumption and GHG emissions than the beneficiation degree. More specifically, FeMo produced as co-product from copper mining has a lower environmental impact measured as the energy consumption and GHG emission among all the four cases. The inventory, consumed energy or associated GHG emission is independent on the initial ore grade and mine type in the downstream production stages such as roasting and smelting. Also, transport has the least impact on the energy consumption and GHG emission among all production stages.

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Calculation of GHG Emissions in the Selected Air Traffic Company

MATEC Web of Conferences ◽

10.1051/matecconf/201823602009 ◽

2018 ◽

Vol 236 ◽

pp. 02009

Author(s):

Martina Hlatka ◽

Maria Stopkova

Keyword(s):

Energy Consumption ◽

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Ghg Emissions ◽

Air Traffic ◽

Gas Emissions ◽

Automotive Component ◽

Transport Services ◽

Manufacturing Company ◽

Component Manufacturing

The paper is dedicated to calculating and declaring energy consumption and greenhouse gas emissions in an automotive component manufacturing company. The calculation was carried out on the bases of EN 16258. By this Directive, it is set out a procedure for determining the energy consumption and greenhouse gas emissions from transport services of all transport sectors.

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The Correlation between Residential Density and Greenhouse Gas Emissions in Surabaya City

The Indonesian Journal of Planning and Development ◽

10.14710/ijpd.1.1.29-34 ◽

2014 ◽

Vol 1 (1) ◽

pp. 29

Author(s):

Rulli Pratiwi Setiawan ◽

Ema Umilia ◽

Ketut Dewi Martha Erli Handayeni

Keyword(s):

Energy Consumption ◽

Population Growth ◽

Total Energy ◽

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Ghg Emissions ◽

Residential Density ◽

Medium Density ◽

Font Size ◽

Gas Emissions

Population growth is happening in cities, including Surabaya as the second largest metropolitan region in Indonesia. The population growth has an impact to the residential density, whereas residential is usually the largest part of land use in urban areas. In urabaya, residential use covers more than 60% of the total area. The intensive use of residential area has impacts on the environment. One significant issue is the consumption of energy that produces greenhouse gas emissions. This study is aimed at explaining the relationships between residential density and greenhouse gas emissions in Surabaya City, Indonesia. The residential density will be divided into three categories, i.e. low, medium and high density. The category of density is taken from the Identification Report of Surabaya Spatial Plan. The results of this study indicate that there are significant differences in the electrical energy consumption for the household sector in each residential density. These differences are mainly influenced by variables such as car ownership, ventilation system, the use of electrical power, cooking fuel and the way to use the home appliances. The highest total energy consumption per month exists in high density type. Although the average smallest energy consumption per household exists in medium density, the total energy consumption in medium density is much greater than that in the low density because the number of households in medium density is greater. The final result shows that the correlation between the total production of GHG emissions (CO2) and density has a direct or positive relationship, which means that the greater the density, the higher the production rate of GHG emissions (CO2).<br style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" />

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Mitigation Strategies for Reduction of Embodied Energy and Carbon, in the Construction Systems of Contemporary Quality Architecture

Sustainability ◽

10.3390/su11143806 ◽

2019 ◽

Vol 11 (14) ◽

pp. 3806 ◽

Cited By ~ 8

Author(s):

Enrico Sicignano ◽

Giacomo Di Ruocco ◽

Roberta Melella

Keyword(s):

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Environmental Sustainability ◽

Building Materials ◽

Ghg Emissions ◽

Mitigation Strategies ◽

Embodied Energy ◽

Design Strategies ◽

Gas Emissions ◽

Wide Range

The criticality related to the consumption of operational energy and related greenhouse gas (GHG) emissions of existing buildings is clearly decreasing in new buildings due to the strategies tested and applied in recent years in the energy retrofit sector. Recently, studies have been focusing on strategies to reduce environmental impacts related to the entire life cycle of the building organism, with reference to the reduction of embodied energy (and related greenhouse gas emissions) in building materials. As part of EEA’s European EBC project, Annex 57, a wide range of case studies have been promoted with the aim of identifying design strategies that can reduce the embodied energy and related greenhouse gas emissions of buildings. The aim of this paper is to investigate the most common construction systems in the construction industry (concrete, steel, wood) through the analysis of three contemporary architectural works, with the aim of identifying the predisposition for environmental sustainability of each technological system, thus guiding the operators in the sector towards design choices more compatible with the environmental requirements recommended by European legislation.

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Optimization of energy consumption and its effect on the energy use efficiency and greenhouse gas emissions of wheat production in Turkey

Discover Sustainability ◽

10.1007/s43621-021-00035-w ◽

2021 ◽

Vol 2 (1) ◽

Author(s):

Muhammad Imran ◽

Orhan Ozcatalbas

Keyword(s):

Energy Consumption ◽

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Energy Use ◽

Ghg Emissions ◽

Average Energy ◽

Green Economy ◽

Energy Output ◽

Gas Emissions ◽

Wheat Production

AbstractThis study aimed to model energy use, energy efficiency, and greenhouse gas emissions in rain-fed wheat production by using a nonparametric data envelopment analysis (DEA) method. Data were collected through face-to-face interviews with 140 wheat farmers in 4 districts of Antalya Province. The energy inputs (independent variables) were human labor, seeds, chemical fertilizers, herbicides, and diesel fuel, and the energy output was the dependent variable. The results showed that the average energy consumption and the output energy for the studied wheat production system were 21. 07GJ ha−1 and 50. 99 GJ ha−1, respectively, and the total GHG emissions were calculated to be 592.12 kg CO2eq ha−1. Chemical fertilizer has the highest share of energy consumption and total GHG emissions. Based on the results from DEA, the technical efficiency of the farmers was found to be 0.81, while pure technical and scale efficiencies were 0.65 and 0.76, respectively. The results also highlighted that there is a potential opportunity to save approximately 14% (2.93 GJ ha−1) of the total energy consumption and consequently a 17% reduction in GHG emissions by following the optimal amounts of energy consumption while keeping the wheat yield constant. Efficient use of energy and reduction in GHG emissions will lead to resource efficiency and sustainable production, which is the main aim of the green economy.

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Analysing Nexus between Economic Growth, GHG Emissions, and Energy Consumption for India

Journal of Resources Energy and Development ◽

10.3233/red-170101 ◽

2021 ◽

Vol 17 (1) ◽

pp. 1-16

Author(s):

Asim Hasan ◽

Rahil Akhtar Usmani

Keyword(s):

Economic Growth ◽

Energy Consumption ◽

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Carbon Emissions ◽

Series Data ◽

Gas Emissions ◽

Current Time ◽

Causal Influence ◽

Integration Test

Rising greenhouse gas emissions is an important issue of the current time. India’s massive greenhouse gas emissions is ranked third globally. The escalating energy demand in the country has opened the gateway for further increase in emissions. Recent studies suggest strong nexus between energy consumption, economic growth, and carbon emissions. This study has the objective to empirically test the aforementioned interdependencies. The co-integration test and multivariate vector error correction model (VECM) are used for the analysis and the Granger Causality test is used to establish the direction of causality. The time-series data for the period of 1971–2011 is used for the analysis. The results of the study confirm strong co-integration between variables. The causality results show that economic growth exerts a causal influence on carbon emissions, energy consumption exerts a causal influence on economic growth, and carbon emissions exert a causal influence on economic growth. Based on the results, the study suggests a policy that focuses on energy conservation and gradual replacement of fossil fuels with renewable energy sources, which would be beneficial for the environment and the society.

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Impact of Cycle Time and Payload of an Industrial Robot on Resource Efficiency

Robotics ◽

10.3390/robotics10010033 ◽

2021 ◽

Vol 10 (1) ◽

pp. 33

Author(s):

Florian Stuhlenmiller ◽

Steffi Weyand ◽

Jens Jungblut ◽

Liselotte Schebek ◽

Debora Clever ◽

...

Keyword(s):

Life Cycle Assessment ◽

Life Cycle ◽

Energy Consumption ◽

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Resource Efficiency ◽

Life Cycle Costs ◽

Gas Emissions ◽

Cycle Times ◽

The Individual

Modern industry benefits from the automation capabilities and flexibility of robots. Consequently, the performance depends on the individual task, robot and trajectory, while application periods of several years lead to a significant impact of the use phase on the resource efficiency. In this work, simulation models predicting a robot’s energy consumption are extended by an estimation of the reliability, enabling the consideration of maintenance to enhance the assessment of the application’s life cycle costs. Furthermore, a life cycle assessment yields the greenhouse gas emissions for the individual application. Potential benefits of the combination of motion simulation and cost analysis are highlighted by the application to an exemplary system. For the selected application, the consumed energy has a distinct impact on greenhouse gas emissions, while acquisition costs govern life cycle costs. Low cycle times result in reduced costs per workpiece, however, for short cycle times and higher payloads, the probability of required spare parts distinctly increases for two critical robotic joints. Hence, the analysis of energy consumption and reliability, in combination with maintenance, life cycle costing and life cycle assessment, can provide additional information to improve the resource efficiency.

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Greenhouse gas emissions from the water–air interface of a grassland river: a case study of the Xilin River

Scientific Reports ◽

10.1038/s41598-021-81658-x ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Xue Hao ◽

Yu Ruihong ◽

Zhang Zhuangzhuang ◽

Qi Zhen ◽

Lu Xixi ◽

...

Keyword(s):

Carbon Dioxide ◽

Land Use ◽

Nitrous Oxide ◽

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Ghg Emissions ◽

Nitrous Oxide Emissions ◽

Gas Emissions ◽

Sand Land ◽

Very High

AbstractGreenhouse gas (GHG) emissions from rivers and lakes have been shown to significantly contribute to global carbon and nitrogen cycling. In spatiotemporal-variable and human-impacted rivers in the grassland region, simultaneous carbon dioxide, methane and nitrous oxide emissions and their relationships under the different land use types are poorly documented. This research estimated greenhouse gas (CO2, CH4, N2O) emissions in the Xilin River of Inner Mongolia of China using direct measurements from 18 field campaigns under seven land use type (such as swamp, sand land, grassland, pond, reservoir, lake, waste water) conducted in 2018. The results showed that CO2 emissions were higher in June and August, mainly affected by pH and DO. Emissions of CH4 and N2O were higher in October, which were influenced by TN and TP. According to global warming potential, CO2 emissions accounted for 63.35% of the three GHG emissions, and CH4 and N2O emissions accounted for 35.98% and 0.66% in the Xilin river, respectively. Under the influence of different degrees of human-impact, the amount of CO2 emissions in the sand land type was very high, however, CH4 emissions and N2O emissions were very high in the artificial pond and the wastewater, respectively. For natural river, the greenhouse gas emissions from the reservoir and sand land were both low. The Xilin river was observed to be a source of carbon dioxide and methane, and the lake was a sink for nitrous oxide.

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