Development of a building life cycle carbon emissions assessment program (BEGAS 2.0) for Korea׳s green building index certification system

Roh, Seungjun; Suk, Sung Joon; Ford, George; Shin, Sang Jin

doi:10.1016/j.rser.2015.09.048

Cited by 50 publications

(19 citation statements)

References 30 publications

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“…For the analysis of LCEEIs, the EEIs of the six major building materials with the highest EIs were assessed in the production stage, and a life-cycle scenario was constructed so that the EEIs could be assessed in the construction, maintenance, and end-of-life stages on the basis of the major building material inputs in the production stage [40]. Figure 2 shows the case of ready-mixed concrete as an example of the EEI assessment on the basis of the constructed life-cycle scenario.…”

Section: Construction Of the Life-cycle Scenariomentioning

confidence: 99%

Analysis of Embodied Environmental Impacts of Korean Apartment Buildings Considering Major Building Materials

2018

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Because the reduction in environmental impacts (EIs) of buildings using life-cycle assessment (LCA) has been emphasized as a practical strategy for the sustainable development of the construction industry, studies are required to analyze not only the operational environmental impacts (OEIs) of buildings, but also the embodied environmental impacts (EEIs) of building materials. This study aims to analyze the EEIs of Korean apartment buildings on the basis of major building materials as part of research with the goal of reducing the EIs of buildings. For this purpose, six types of building materials (ready-mixed concrete, reinforcement steel, concrete bricks, glass, insulation, and gypsum) for apartment buildings were selected as major building materials, and their inputs per unit area according to the structure types and plans of apartment buildings were derived by analyzing the design and bills of materials of 443 apartment buildings constructed in South Korea. In addition, a life-cycle scenario including the production, construction, maintenance, and end-of-life stage was constructed for each major building material. The EEIs of the apartment buildings were quantitatively assessed by applying the life-cycle inventory database (LCI DB) and the Korean life-cycle impact assessment (LCIA) method based on damage-oriented modeling (KOLID), and the results were analyzed.

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Section: Construction Of the Life-cycle Scenariomentioning

confidence: 99%

Analysis of Embodied Environmental Impacts of Korean Apartment Buildings Considering Major Building Materials

2018

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“…In the material production process, CO 2 emitted during the manufacturing of building materials generally producing 30% of building LCCO 2 emissions [29] are evaluated. The CO 2 emissions of this process include those released during the production of structural materials and finishing materials, as represented in Equation (3):…”

Section: Materials Production Processmentioning

confidence: 99%

“…This is a major stage responsible for about 70% of the building's LCCO 2 emissions [29]. The emissions from this stage can be assessed using the service life of the building, amount of energy consumed, and the CO 2 emissions factor as described in Equation (14).…”

Section: Operation Stagementioning

confidence: 99%

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Building Simplified Life Cycle CO2 Emissions Assessment Tool (B‐SCAT) to Support Low‐Carbon Building Design in South Korea

Roh

Tae

2016

Sustainability

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Abstract:Various tools that assess life cycle CO 2 (LCCO 2 ) emissions are currently being developed throughout the international community. However, most building LCCO 2 emissions assessment tools use a bill of quantities (BOQ), which is calculated after starting a building's construction. Thus, it is difficult to assess building LCCO 2 emissions during the early design phase, even though this capability would be highly effective in reducing LCCO 2 emissions. Therefore, the purpose of this study is to develop a Building Simplified LCCO 2 emissions Assessment Tool (B-SCAT) for application in the early design phase of low-carbon buildings in South Korea, in order to facilitate efficient decision-making. To that end, in the construction stage, the BOQ and building drawings were analyzed, and a database of quantities and equations describing the finished area were conducted for each building element. In the operation stage, the "Korea Energy Census Report" and the "Korea Building Energy Efficiency Rating Certification System" were analyzed, and three kinds of models to evaluate CO 2 emissions were proposed. These analyses enabled the development of the B-SCAT. A case study compared the assessment results performed using the B-SCAT against a conventional assessment model based on the actual BOQ of the evaluated building. These values closely approximated the conventional assessment results with error rates of less than 3%.

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“…The construction sector is working towards encouraging the introduction of quantitative evaluation models for sustainable buildings, to reduce the potential environmental impacts of buildings and enhance the quality of life for residents, in line with the principles of sustainable development [2][3][4][5][6]. For example, Robichaud et al [7] suggested four elements for a quantitative evaluation of buildings' sustainability which are the minimization of environmental impact, the enhancement of residents' health, the return of investments, and the introduction of the life cycle in the design phase.…”

Section: Introductionmentioning

confidence: 99%

Probabilistic Analysis of Major Construction Materials in the Life Cycle Embodied Environmental Cost of Korean Apartment Buildings

et al. 2019

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This study employs probabilistic analysis to evaluate the life cycle embodied environmental cost of Korean apartment buildings, with a focus on six major construction materials. To this end, the bill of materials was analyzed for 443 Korean apartment buildings according to the type and plan form, and probability density functions (PDFs) were established for the input quantities of the six materials under consideration. Life cycle scenarios were then examined for each material, and their respective life cycle embodied environmental cost factors were established, using a monetary valuation-based damage cost life cycle analysis model. The estimated environmental costs were evaluated by apartment structural type and plan form, based on probability distributions using the Monte Carlo simulation (MCS). Building life cycle embodied environmental cost was estimated between 16.87 USD/m2 and 23.03 USD/m2 (90% confidence interval). Among the structure types analyzed, the highest costs were associated with the wall structure, followed by rigid frame and flat plate structures; at the plan form level, costs followed the sequence plate-type > mixed-type > tower type for a given type of structure.

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Development of a building life cycle carbon emissions assessment program (BEGAS 2.0) for Korea׳s green building index certification system

Cited by 50 publications

References 30 publications

Analysis of Embodied Environmental Impacts of Korean Apartment Buildings Considering Major Building Materials

Analysis of Embodied Environmental Impacts of Korean Apartment Buildings Considering Major Building Materials

Building Simplified Life Cycle CO2 Emissions Assessment Tool (B‐SCAT) to Support Low‐Carbon Building Design in South Korea

Probabilistic Analysis of Major Construction Materials in the Life Cycle Embodied Environmental Cost of Korean Apartment Buildings

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