A tool for assessing life cycle CO 2 emissions of buildings in Sri Lanka

Kumanayake, Ramya; Luo, Hanbin

doi:10.1016/j.buildenv.2017.11.042

Cited by 57 publications

(28 citation statements)

References 35 publications

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“…Based on the collected data and assumptions for renovation works in Hong Kong, it is estimated that renovation contributes to 61.50 kg CO2e/m 2 of the building during its considered service life (e.g., 50 years). The value is considerably higher than 45 kg CO2e/m 2 estimated by Ortiz-Rodríguez et al [75] and 38 CO2e/m 2 by Kumanayake and Luo [76]. However, energy efficient and low carbon refurbishments and replacement of building services can significantly help reduce the total embodied CO2 emissions of buildings [30,77].…”

Section: Discussionmentioning

confidence: 77%

Comprehensive Evaluation of Carbon Emissions for the Development of High-Rise Residential Building

Yim¹,

Hossain

et al. 2018

Buildings

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Despite the fact that many novel initiatives have been put forward to reduce the carbon emissions of buildings, there is still a lack of comprehensive investigation in analyzing a buildings’ life cycle greenhouse gas (GHG) emissions, especially in high-density cities. In addition, no studies have made attempt to evaluate GHG emissions by considering the whole life cycle of buildings in Hong Kong. Knowledge of localized emission at different stages is critical, as the emission varies greatly in different regions. Without a reliable emission level of buildings, it is difficult to determine which aspects can reduce the life cycle GHG emissions. Therefore, this study aims to evaluate the life cycle GHG emissions of buildings by considering “cradle-to-grave” system boundary, with a case-specific high-rise residential housing block as a representative public housing development in Hong Kong. The results demonstrated that the life cycle GHG emission of the case residential building was 4980 kg CO2e/m2. The analysis showed that the majority (over 86%) of the emission resulted from the use phase of the building including renovation. The results and analysis presented in this study can help the relevant parties in designing low carbon and sustainable residential development in the future.

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Section: Discussionmentioning

confidence: 77%

Comprehensive Evaluation of Carbon Emissions for the Development of High-Rise Residential Building

Yim¹,

Hossain

et al. 2018

Buildings

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“…According to Kumanayake, Luo [9], the global construction sector accounts for nearly 40% of the global energy consumption and similarly, the Sri Lankan construction industry accounts for 35% of the national energy consumption in Sri Lanka [9]. The construction sector is also considered as the largest material consumer in the world in 2005 [10] and similarly, the building sector accounts for nearly 50% of the raw material used in Sri Lanka [5]. The construction sector accounts for one-third of global carbon emissions due to the high level of material and energy consumption.…”

Section: Literature Reviewmentioning

confidence: 99%

“…The building sector, which accounts for 40% of the total global energy consumption and 30% of the total global carbon emissions, is recognized as one of the most significant contributors to the global carbon emissions [4]. The building sector, therefore, has the largest potential to mitigate carbon emissions [5].…”

Section: Introductionmentioning

confidence: 99%

“…Similar to many other developing countries, the construction industry in Sri Lanka has a significant impact on the environment. With the building sector accounting for more than half of the raw material used in construction and 35% of the national energy, it is evident that the building sector contributes to a significant portion of CO 2 emissions in Sri Lanka [5]. The recent rapid increase in construction activities in the Sri Lankan construction industry, especially commercial and residential projects in Colombo suburbs is likely to have a significant impact on the environment.…”

Section: Introductionmentioning

confidence: 99%

“…The recent rapid increase in construction activities in the Sri Lankan construction industry, especially commercial and residential projects in Colombo suburbs is likely to have a significant impact on the environment. Even though Kumanayake and Luo [5] stated that the Sri Lankan construction sector has identified the need to mitigate operational carbon emissions, EC emission aspect has been largely neglected by the Sri Lankan construction sector. The Sri Lankan construction stakeholders have begun to adopt various strategies to mitigate the operational carbon emissions.…”

Section: Introductionmentioning

confidence: 99%

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Perception of Embodied Carbon Mitigation Strategies: The Case of Sri Lankan Construction Industry

2019

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Whilst operational carbon (OC) emission reduction has received greater attention in the literature, embodied carbon (EC) emission reduction aspect has been largely neglected. This is particularly seen in developing countries. This study assessed the awareness and perception of carbon emission in general and EC emission reduction strategies in particular in the Sri Lankan construction industry. A detailed questionnaire, based on a comprehensive literature review, was developed to assess the awareness and perception of the Sri Lankan construction professionals about global carbon emissions, OC emissions, and EC emissions and carbon mitigation strategies. Based on a sample of 111 professionals in the construction sector, results revealed that the Sri Lankan construction professionals have poor awareness about carbon emission, especially about EC emission and EC mitigation strategies. The results further revealed that they are more concerned about the OC emission reduction than the EC emission reduction. The results suggest that they are basically aware of some basic/conventional mitigation strategies such as better design (low-carbon), an extension of building life and refurbishment of existing buildings and carbon tax, but their awareness of recently introduced micro-level technologies/strategies is significantly poor. Findings are a clear reflection of the current situation in many developing countries with regard to carbon emission and mitigation strategies. It was found that a major reason for low awareness was related to the culture: The majority of the respondents believed that actions to reduce carbon footprint should be initiated and handled by the government and other authorities, but not by construction professionals.

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Building-SAT: a whole building life cycle assessment tool framework to quantify the global warming potential of buildings in South Asian Region

Karunaratne,

Dharmarathna,

De Silva

2024

Innov. Infrastruct. Solut.

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A tool for assessing life cycle CO 2 emissions of buildings in Sri Lanka

Cited by 57 publications

References 35 publications

Comprehensive Evaluation of Carbon Emissions for the Development of High-Rise Residential Building

Comprehensive Evaluation of Carbon Emissions for the Development of High-Rise Residential Building

Perception of Embodied Carbon Mitigation Strategies: The Case of Sri Lankan Construction Industry

Building-SAT: a whole building life cycle assessment tool framework to quantify the global warming potential of buildings in South Asian Region

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