Abstract
The energy demand of developing countries increases every year. Large amounts of energy are consumed during the production and transportation of construction materials. Conservation of energy became important in the perspective of limiting carbon emissions into the environment and for decreasing the cost of materials. This article is concentrated on some issues affecting the embodied energy of construction materials mainly in the residential sector. Energy consumption in three various wall structures has been made. The comparison demonstrated that the embodied energy of traditional wall structures is 3-times higher than the energy efficient building materials. CO2 emissions produced by conventional materials and green building materials are 54.96 Kg CO2/m2 and 35.33 Kg CO2/m2, respectively. Finally, the results revealed substantial difference in embodied energy and carbon footprints of materials for which its production involves a high amount of energy consumption.
Highlights
The rapidly growing global energy consumption over last two decades is alarming and it significantly influenced the energy sector by depleting energy resources [1]
There are many articles on embodied energy of building materials that mainly relate to different methods of assessment, gathering embodied energy of different building materials and examining other features that affect the assessment of embodied energy
Different materials are used for walls such as clay brick, hollow blocks, AAC blocks and soil cement block
Summary
The rapidly growing global energy consumption over last two decades is alarming and it significantly influenced the energy sector by depleting energy resources [1]. The world’s overall energy consumption has increased by 30% during last twenty-five years [2]. The building sector, by utilizing 30 to 40% of world energy resources, stands third in ranking after industrial and agriculture sectors [3]. In January, the 2008 European Commission (EC) formulated a Climate Action Package with the aim to preserve global energy and control Green House Gas (GHG) emissions by increasing the share of renewable energy resources up to 20% by the end of year 2020 [4]. As the housing sector is the major consumer of world’s primary and secondary energy, suitable energy-efficient strategies are, required, in this sector
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