Comparison of Life Cycle Carbon Dioxide Emissions and Embodied Energy in Four Renewable Electricity Generation Technologies in New Zealand

2009 ◽  
Vol 43 (16) ◽  
pp. 6406-6413 ◽  
Author(s):  
Bridget M. Rule ◽  
Zeb J. Worth ◽  
Carol A. Boyle
Keyword(s):  
Carbon Dioxide ◽  
Life Cycle ◽  
New Zealand ◽  
Carbon Dioxide Emissions ◽  
Electricity Generation ◽  
Embodied Energy ◽  
Renewable Electricity ◽  
Renewable Electricity Generation

scholarly journals Analysis and Assessment of the Building Life Cycle. Indicators and Tools for the Early Design Stage

2021 ◽  
Vol 13 (11) ◽  
pp. 6467
Author(s):  
Roberto Giordano ◽  
Federica Gallina ◽  
Benedetta Quaglio
Keyword(s):  
Carbon Dioxide ◽  
Life Cycle ◽  
Environmental Impact ◽  
Carbon Dioxide Emissions ◽  
Energy Content ◽  
Primary Energy ◽  
Embodied Energy ◽  
Design Stage ◽  
Early Design Stage ◽  
Carbon Dioxide Co2

Construction is a crucial sector in terms of worldwide environmental impacts. Building material production along with transport and demolition are no exception, because in the last decades, they have constantly increased their carbon dioxide (CO2) emissions. Actions and initiatives are therefore important to tackle the relationship between buildings and climate change. Particularly, it is necessary to develop Life Cycle Assessment (LCA) tools useful to calculate the environmental impact of buildings and to make them accessible to designers and stakeholders acting in the building sector. The article aims to contribute to the international debate about environmental assessment indicators for buildings and the simplified LCA based tools. The Embodied Energy (EE) and the Embodied Carbon (EC) have been investigated. The former, related to primary energy content; the latter, associated with the equivalent carbon dioxide emissions. EE and EC have been used as indicators for the development of a calculation tool named EURECA, for assessing the environmental impact of the building over its life cycle, as defined by the EN 15978:2011 standard. The Solar Decathlon Latin America and Caribbean’s house designed and built by an international academic team has been an opportunity to check the indicators and the tool’s effectiveness.

scholarly journals Life cycle energy assessment and carbon dioxide emissions of wall systems for rural houses

2021 ◽  
Vol 21 (1) ◽  
pp. 37-50
Author(s):  
Renathielly Fernanda da Silva Brunetta ◽  
Samuel Nelson Melegari de Souza ◽  
Alessander Christopher Morales Kormann ◽  
Alexandre Haag Leite
Keyword(s):  
Carbon Dioxide ◽  
Life Cycle ◽  
Reinforced Concrete ◽  
Carbon Dioxide Emissions ◽  
Embodied Energy ◽  
Reinforced Concrete Structure ◽  
Concrete Walls ◽  
Reinforced Concrete Walls ◽  
Energy Assessment ◽  
Wide Range

Abstract Wall systems have a wide range of embodied energy due to the diversity of materials available. This paper analyzes the expenditure of energy and carbon dioxide emissions in internal and external wall systems (IEWS) of a rural residence of social interest in Cascavel, state of Paraná, Brazil. The methodology proposed by NBR ISO 14040 was used to perform a life-cycle energy assessment (LCEA) and the carbon dioxide emissions assessment (LCCO2A) of these systems. Four scenarios were considered: reinforced concrete structure and ceramic blocks wall system, load-bearing masonry with concrete blocks, steel framing and reinforced concrete walls molded on site. As a result, it was found that it is possible to reduce energy consumption up to 25% by opting for reinforced concrete walls molded on site. In regards to CO2 emission, it was verified that the difference is even greater, being able to reduce emissions by almost 32% when opting for this same scenario.

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