Evaluation of Life Cycle Carbon Dioxide Emissions through Sustainable Lifestyles Related to Food Production and Consumption: Case Study of Osaka

Traditional Cambodian food has higher nutrient balances and is environmentally sustainable compared to conventional diets. However, there is a lack of knowledge and evidence on nutrient intake and the environmental greenness of traditional food at different age distributions. The relationship between nutritional intake and environmental impact can be evaluated using carbon dioxide (CO2) emissions from agricultural production based on life cycle assessment (LCA). The objective of this study was to estimate the CO2 equivalent (eq) emissions from the traditional Cambodian diet using LCA, starting at each agricultural production phase. A one-year food consumption scenario with the traditional diet was established. Five breakfast (BF1–5) and seven lunch and dinner (LD1–7) food sets were consumed at the same rate and compared using LCA. The results showed that BF1 and LD2 had the lowest and highest emissions (0.3 Mt CO2 eq/yr and 1.2 Mt CO2 eq/yr, respectively). The food calories, minerals, and vitamins met the recommended dietary allowance. The country’s existing food production system generates CO2 emissions of 9.7 Mt CO2 eq/yr, with the proposed system reducing these by 28.9% to 6.9 Mt CO2 eq/yr. The change in each food item could decrease emissions depending on the type and quantity of the food set, especially meat and milk consumption.

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Comparison of Carbon Dioxide Emissions of the Ordinary Reinforced Concrete Slab and the Voided Slab System During the Construction Phase: A Case Study of a Residential Building in South Korea

Sustainability ◽

10.3390/su11133571 ◽

2019 ◽

Vol 11 (13) ◽

pp. 3571 ◽

Cited By ~ 1

Author(s):

Inkwan Paik ◽

Seunguk Na

Keyword(s):

Carbon Dioxide ◽

Life Cycle ◽

Reinforced Concrete ◽

South Korea ◽

Construction Industry ◽

Carbon Dioxide Emissions ◽

Building Materials ◽

Concrete Slab ◽

Reinforced Concrete Slab

The construction industry not only consumes a lot of energy but also emits large volumes of carbon dioxide. Most countries have established target reduction values of the carbon dioxide emissions to alleviate environmental burdens and promote sustainable development. The reduction in carbon dioxide emissions in the construction industry has been taking place in various ways as buildings produce large quantities of the carbon dioxide over their construction life cycle. The aim of this study is to assess and compare the carbon dioxide emissions of an ordinary reinforced concrete slab and the voided slab system applied to a case study involving a commercial-residential complex building in South Korea. Process-based life-cycle assessment (LCA) is adopted to compute the carbon dioxide emissions during the construction phase, which includes all processes from material production to the end of construction. The results indicate that the total CO2 emissions are 257,230 and 218,800 kg CO2 for the ordinary reinforced concrete slab and the voided slab system, respectively. The highest contributor to CO2 reduction is the embodied carbon dioxide emissions of the building materials, which accounts for 34,966 kg CO2. The second highest contributor is the transportation of the building materials, accounting for 3417 kg CO2.

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The Problem of Carbon Dioxide Emissions from Closed Coal Mine Shafts – The Overview and the Case Study

Archives of Mining Sciences ◽

10.1515/amsc-2016-0042 ◽

2016 ◽

Vol 61 (3) ◽

pp. 587-600

Author(s):

Paweł Wrona ◽

Józef Sułkowski ◽

Zenon Różański ◽

Grzegorz Pach

Keyword(s):

Carbon Dioxide ◽

Carbon Dioxide Emissions ◽

Carbon Dioxide Emission ◽

Mining Area ◽

Emission Point ◽

Water Pumping ◽

Gas Hazard ◽

Flow Through ◽

Reporting Procedures

Abstract Greenhouse gas emissions are a common problem noticed in every mining area just after mine closures. However, there could be a significant local gas hazard for people with continuous (but variable) emission of these gases into the atmosphere. In the Upper Silesia area, there are 24 shafts left for water pumping purposes and gases can flow through them hydraulically. One of them – Gliwice II shaft – was selected for inspection. Carbon dioxide emission with no methane was detected here. Changes in emission and concentration of carbon dioxide around the shaft was the aim of research carried out. It was stated that a selected shaft can create two kinds of gas problems. The first relates to CO2 emission into the atmosphere. Possible emission of that gas during one minute was estimated at 5,11 kg CO2/min. The second problem refers to the local hazard at the surface. The emission was detected within a radius of 8m from the emission point at the level 1m above the ground. These kinds of matters should be subject to regular gas monitoring and reporting procedures.

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Life Cycle Energy Consumption and Carbon Dioxide Emissions of Agricultural Residue Feedstock for Bioenergy

Applied Sciences ◽

10.3390/app11052009 ◽

2021 ◽

Vol 11 (5) ◽

pp. 2009

Author(s):

Valerii Havrysh ◽

Antonina Kalinichenko ◽

Anna Brzozowska ◽

Jan Stebila

Keyword(s):

Carbon Dioxide ◽

Power Generation ◽

Life Cycle ◽

Carbon Dioxide Emissions ◽

Crop Production ◽

Agricultural Residues ◽

Environmental Indicators ◽

Low Carbon ◽

Low Carbon Economy ◽

Energy Inputs

The depletion of fossil fuels and climate change concerns are drivers for the development and expansion of bioenergy. Promoting biomass is vital to move civilization toward a low-carbon economy. To meet European Union targets, it is required to increase the use of agricultural residues (including straw) for power generation. Using agricultural residues without accounting for their energy consumed and carbon dioxide emissions distorts the energy and environmental balance, and their analysis is the purpose of this study. In this paper, a life cycle analysis method is applied. The allocation of carbon dioxide emissions and energy inputs in the crop production by allocating between a product (grain) and a byproduct (straw) is modeled. Selected crop yield and the residue-to-crop ratio impact on the above indicators are investigated. We reveal that straw formation can consume between 30% and 70% of the total energy inputs and, therefore, emits relative carbon dioxide emissions. For cereal crops, this energy can be up to 40% of the lower heating value of straw. Energy and environmental indicators of a straw return-to-field technology and straw power generation systems are examined.

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Optimal Synergy between Photovoltaic Panels and Hydrogen Fuel Cells for Green Power Supply of a Green Building—A Case Study

Sustainability ◽

10.3390/su13116304 ◽

2021 ◽

Vol 13 (11) ◽

pp. 6304

Author(s):

Raluca-Andreea Felseghi ◽

Ioan Așchilean ◽

Nicoleta Cobîrzan ◽

Andrei Mircea Bolboacă ◽

Maria Simona Raboaca

Keyword(s):

Carbon Dioxide ◽

Fuel Cells ◽

Fuel Cell ◽

Power Supply ◽

Carbon Dioxide Emissions ◽

Green Building ◽

Energy System ◽

Generation System ◽

Photovoltaic Panels

Alternative energy resources have a significant function in the performance and decarbonization of power engendering schemes in the building application domain. Additionally, “green buildings” play a special role in reducing energy consumption and minimizing CO2 emissions in the building sector. This research article analyzes the performance of alternative primary energy sources (sun and hydrogen) integrated into a hybrid photovoltaic panel/fuel cell system, and their optimal synergy to provide green energy for a green building. The study addresses the future hydrogen-based economy, which involves the supply of hydrogen as the fuel needed to provide fuel cell energy through a power distribution infrastructure. The objective of this research is to use fuel cells in this field and to investigate their use as a green building energy supply through a hybrid electricity generation system, which also uses photovoltaic panels to convert solar energy. The fuel cell hydrogen is supplied through a distribution network in which hydrogen production is outsourced and independent of the power generation system. The case study creates virtual operating conditions for this type of hybrid energy system and simulates its operation over a one-year period. The goal is to demonstrate the role and utility of fuel cells in virtual conditions by analyzing energy and economic performance indicators, as well as carbon dioxide emissions. The case study analyzes the optimal synergy between photovoltaic panels and fuel cells for the power supply of a green building. In the simulation, an optimally configured hybrid system supplies 100% of the energy to the green building while generating carbon dioxide emissions equal to 11.72% of the average value calculated for a conventional energy system providing similar energy to a standard residential building. Photovoltaic panels account for 32% of the required annual electricity production, and the fuel cells generate 68% of the total annual energy output of the system.

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Can spatial planning really mitigate carbon dioxide emissions in urban areas? A case study in Taipei, Taiwan

Landscape and Urban Planning ◽

10.1016/j.landurbplan.2017.08.001 ◽

2018 ◽

Vol 169 ◽

pp. 22-36 ◽

Cited By ~ 12

Author(s):

Szu-Hua Wang ◽

Shu-Li Huang ◽

Po-Ju Huang

Keyword(s):

Carbon Dioxide ◽

Urban Areas ◽

Carbon Dioxide Emissions ◽

Spatial Planning

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The effect of income inequality on carbon dioxide emissions: A case study of Indonesia

Heliyon ◽

10.1016/j.heliyon.2020.e04772 ◽

2020 ◽

Vol 6 (8) ◽

pp. e04772 ◽

Cited By ~ 1

Author(s):

Deni Kusumawardani ◽

Ajeng Kartiko Dewi

Keyword(s):

Carbon Dioxide ◽

Income Inequality ◽

Carbon Dioxide Emissions

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Greenhouse Gas Emission of Broiler Chicken Production in Malaysia using Life Cycle Assessment Guidelines: A Case Study

International Journal of Engineering Materials and Manufacture ◽

10.26776/ijemm.03.02.2018.03 ◽

2018 ◽

Vol 3 (2) ◽

pp. 87-97

Author(s):

Syakira Afiqah Suffian ◽

Atiah Abdullah Sidek ◽

Toshihiko Matsuto ◽

Muataz Hazza Al Hazza ◽

Hazlina Md Yusof ◽

...

Keyword(s):

Carbon Dioxide ◽

Nitrous Oxide ◽

Life Cycle Assessment ◽

Life Cycle ◽

Greenhouse Gas ◽

Broiler Chicken ◽

Greenhouse Gas Emission ◽

Gas Emission ◽

Chicken Farm

The aim of this research was to evaluate the level of greenhouse gas emission from broiler chicken farming industry in Malaysia. In order to achieve that, Life Cycle Assessment method was chosen as a framework to complete the task. A case study was conducted at a broiler chicken farm to gather the data and information related to the broiler chicken production. Cradle-to-gate assessment including distribution stage was conducted based on the ISO14040/1044 guidelines. Inventory data for this case study was gathered in collaboration with one of the selected case study broiler chicken farm company. Greenhouse gas emission that consists of several most affected gases such as carbon dioxide, methane and nitrous oxide was studied. Result shows that the highest carbon dioxide emission came from manure, which accounted for 1,665,342 kg CO2 equivalent per total broilers while the highest methane emission came from feed, which accounted for 126,207.84 g CH4 equivalent per total broilers. For nitrous oxide emission, the highest values came from bedding which accounted for 20,316.87 g N2O equivalent per total broilers in the commercial modern broiler chicken farm. In this case study, it can be concluded that manure gives the most prominent effect to the greenhouse gas emission followed by feed and bedding materials.

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