• Title/Summary/Keyword: green construction

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A Basic Study on Green Building Certification in China (중국의 녹색건축인증 현황에 대한 기초조사 연구)

  • Kim, Jae-Young;Liu, Zhi-Hong;Lee, Jong-Kuk
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.16 no.1
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    • pp.12-19
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    • 2017
  • This study investigates and analyzes the current status of green building certification (ESGB) in China, which is experiencing serious environmental pollution due to rapid economic development as an international pending issue for green growth, It is a basic research. This will be used as a resource to contribute to the reduction of carbon emissions in the future construction sector. The research method is to investigate the status of green building certification and the types of facilities in the whole of China, and to examine the evaluation criteria and items of ESGB 2014 and analyze the differences with ESGB 2006. Most of the research methods are based on the literature review and refer to the website of China Green Building Evaluation and the data of China Urban Science Institute.

The Method of Green Data Center to Improve the Power Efficiency (에너지 효율화를 위한 그린 데이터센터 도입방안)

  • Choi, Young-Jin;Moon, Sung-Jun;Kim, Jin-Hwan;Kim, Sung-Han;Shin, Il-Sup;Kim, Ki-Byoung
    • Journal of Digital Convergence
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    • v.8 no.3
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    • pp.181-197
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    • 2010
  • Recently, energy saving is a important concern. IT fields, also, are try to reduce the electricity during the IT service, that links to green IT. Especially, green data center is a hot issue, because there are many new projects to build large data center, that spends huge electricity. Even though there are many new projects, the process to build the green data center is not arranged. That depend on the personal experience during the data center construction. Especially, cooling is complex and many problem to reduce the electricity. So, this research provides the method, that is consisted of tasks, activities, and guideline to build the green data center.

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The Analysis of Evaluation Items of Korea Green Building Certification Criteria in Office Building - Focusing on the Case Study of Office Building Certificated by GBCC from 2010 to 2012 - (국내 업무시설 부문의 친환경건축물 인증 평가항목 분석 - 2010년~2012년 국내 친환경 인증 업무시설의 사례 분석을 중심으로 -)

  • Kim, Chang-Sung
    • Korean Institute of Interior Design Journal
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    • v.22 no.2
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    • pp.11-19
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    • 2013
  • Korea Government have carried out various policies to save the Earth environment from global warming and environmental pollution. It has also executed the Green Building Certification Criteria(GBCC) in 2002. The GBCC of office building was executed in 2003 and was revised twice in 2010 and 2011. Concerns about green building construction were quite increasing to keep the building performances sustainable. The aims of this paper is to check the reliability of weighting factors and scoring difficulties in all assessment categories of GBCC and to suggest the amendment direction of the future assessment criteria for green building. For the study, the old and new version of GBCC were examined to present the revision direction of GBCC and the 10 cases certificated by the old and new version, respectively 5 were analysed to compare with the difficulties in obtaining the certification. According to the results of the study, the GBCC requires additional amendments about the assessment categories of the energy consumption monitoring and the building commissioning as required subjects in order to secure the building performances. In addition, the operation mamagement of the building need to be assessed more intensively.

A Study on the Improvement of Scoring System by Issues as well as Criteria in the Green Building Certification System for Office Building (업무용 친환경건축물의 득점체계 개선에 관한 연구)

  • Mo, Hye-Ran;Moon, Mi-Seon;Haan, Chan-Hoon;Tae, Choon-Seob
    • Journal of the Korean Solar Energy Society
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    • v.32 no.5
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    • pp.108-117
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    • 2012
  • The purpose of Green Building Certification System is to promote the environment-friendly building construction as the life-cycle environmental performance of a certain building is assessed and certified nationally(domestically). By the way, a building can get the green building certificate just with the minimum standard in prerequisite assessment criteria and with the designated scores in totals. GBCS consists of 9 assessment issues and it has 4 grades. Nevertheless the 1st. grade green building has uneven scores in each issue. In other words, it has even 0 point in a special issue. Due to the above problem, the discrimination and reliability in the GBCS grading and scoring has to be secured. This study aims at a new grading and scoring system equipped with the discrimination and reliability through analysing the scores of prerequisite assessment criteria and the scores by issues in the actually certified green office buildings.

Analyzing the Weight of Assessment Criteria in Korea Green Building Certification System - Focused on Certification Standards for Multi-unit Apartment Projects - (국내 친환경 건축물 인증제도 평가항목의 중요도 분석 - 공동주택 인증심사기준 중심으로 -)

  • Choi, Yeo-Jin;Lhee, Sang-Choon
    • KIEAE Journal
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    • v.12 no.1
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    • pp.83-90
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    • 2012
  • Over the world, social demands and concerns of energy and resource depletions and environmental conservation have resulted in many researches and applications on sustainable development and construction. In order to support these demands and concerns, international green building certification systems such as LEED(Leadership in Energy and Environmental Design) and BREEAM(Building Research Establishment Environmental Assessment Method) were developed. In Korea, the green building certification system was introduced in 2000 and widely applied to all types of new buildings in order to induce the diffusion of sustainable buildings on May, 2010. This paper investigates the importance of assessment criteria on multi-unit apartment projects among certification rating systems using the AHP(Analytic Hierarchy Process) method and suggests a new direction on certification assessment standards. For applying the AHP method, the survey of staffs in green building certification consulting companies and architectural design companies was conducted via e-mail. As a result, criteria like energy, indoor environment, land use, pollution control, and ecological environment among 9 main ones turned out important on assessing green building certification at multi-unit apartment projects, while criteria like water resource, transportation, maintenance management, and material and resource did relatively unimportant.

A Study on Runoff Water Reduction Effects According to Shapes of Formation of Artificial Soil Green Area in Multi-Housing Complex (공동주택단지 내 인공지반 녹지조성 형태에 따른 우수유출 저감효과)

  • Nam, Mi A;Jang, Dae Hee;Kim, Hyeon Soo
    • KIEAE Journal
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    • v.13 no.1
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    • pp.9-15
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    • 2013
  • This study aims to analyze, by forming an experimental area of artificial soil green area that is of equal scale and analyzing the characteristics of runoff water in accordance with the cross-section configuration, applied the benefits in an actual multi-housing case study complex. In examining the measurement test results of the runoff water infiltration amount and surface runoff amount of a low-profile type green area(Dish type) and a general type green area(Mound type), Dish type was seen to have 1.5-times higher runoff water infiltration amount than Mound type during heavy rainfalls and showed about a 50% reduction with respect to the surface runoff amount. In other words, artificial soil green area offers the benefit of reduction of surface runoff amount and suggests, in actuality even with a change to the cross-sectional configuration of artificial soil green area alone at the time of construction of multi-housings, the possibility of benefits and reduction of costs spent on existing rainwater management facilities.

Green Tourism Accessibility Evaluation for Policy Making of Rural Closed School - Case By Chungcheongnamdo Province - (농촌폐교 활용 정책수립을 위한 그린투어리즘 접근성 평가 - 충청남도를 대상으로-)

  • Chang, Woo-Seok;Jung, Nam-Su
    • Journal of Korean Society of Rural Planning
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    • v.19 no.4
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    • pp.293-306
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    • 2013
  • According to the increase of rural experience, that is important in satisfying needs of green tourism and vitalizing rural economy to use closed school in rural area as experience facility. For using closed school as experience facility, political and institutional assistants are needed in effective equipments and stable operation based on multi-perspective approach and analysis. In this study, we try to evaluate green-tourism accessibility of rural experience facility remodeled from closed school considering regional population and spatial characteristics. In evaluating process, gravity potential model are adapted with considering group size of customer and distance-friction coefficient. Distance-friction coefficient is a function of user restriction which depend on possible activity in each experience facility. Green tourism accessibility of experience facility is calculated with summation of accessibility to each region, and we analyzed it as a group by closed school type and location with application in Chungcheongnam-do. We found a correlation between green tourism accessibility of rural closed school and their income.

A Study on LEED v3(2009) Sustainable Neighborhood Development - Focused on LEED for Neighborhood Development (LEED v3(2009)에서의 친환경 단지 개발에 관한 연구 - LEED for Neighborhood Development를 중심으로)

  • Ahn, Dong-Joon
    • KIEAE Journal
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    • v.11 no.3
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    • pp.11-18
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    • 2011
  • Sustainability became the keyword of our society worldwide, and it is undoubtful that buildings are mainly responsible for green house gas emission and energy consumption. Responding to current needs, US Green Building Council has launched the first LEED rating system in 1998. Since then, LEED has been evolved and it has multiple sub-system categorized by project types. This study aims to analyze characteristics of sustainable neighborhood development and to suggest methodology for establishing certification system in Korea. First, LEED-ND 2009(LEED for Neighborhood Development) was addressed with certified projects by US Green Building Council. After that, LEED-NC 2009(LEED for New Construction) was compared with green building certification criteria in Korea to find out unforeseen aspects by each system, in terms of sustainable neighborhood development. As a result of this study, sustainable neighborhood development requires a transition of architects' responsibility beyond building design. Building technology has been advanced at extremely fast pace, however, applying techniques to individual architecture would not make our town sustainable. This study provided basic resources to understand that creating sustainable neighborhood is social phenomenon and more studies should be undertaken to establish Green Neighborhood Certification Criteria in Korea.

Comparative Economic Analysis of RE100 Implementation Methods in South Korea (국내 RE100 이행방안의 경제성 비교분석 연구)

  • An, Sang Hyo;Woo, JongRoul
    • Current Photovoltaic Research
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    • v.10 no.2
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    • pp.62-71
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    • 2022
  • The Global RE100 campaign is a one of the voluntary campaign, but it has a lot of influence on domestic companies that have not yet joined the Global RE100. Accordingly, the Korean government introduced the Korean RE100 (K-RE100) system to prepare an institutional mechanism for domestic companies to respond to RE100. However, in Korea, due to the high LCOE of renewable energy and institutional limitations of the power transaction system, there is a limit for companies to implement RE100 in various ways. Therefore, in this study, the implementation cost of RE100 for green tariff, REC purchase, third-party PPA, direct(or corporate) PPA, and self-generation was compared and analyzed to derive the order of implementation with the net present value (NPV) of costs incurred over 20 years. As a result, self-construction was analyzed as the most economical method, but the implementation through the green tariff seemed to be the most realistic implementation method so far. However, considering the gradually falling LCOE, third-party PPA and direct PPA could be secured competitiveness against green tariff in 2025 and 2026. Then it could allow the companies to have various portfolios for implementation of RE100.

Study of geopolymer mortar based on alkali-activated green tuff and slag with optimal NaOH and curing temperature

  • Parand Razeghi Tehrani;Mohammad Ali Arjomand;Azita Behbahaninia;Nargess Kargari
    • Advances in concrete construction
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    • v.18 no.5
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    • pp.343-354
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    • 2024
  • The utilization of alkali-activated green tuff to produce geopolymer mortar, using low molarity NaOH and curing temperature to reduce energy consumption is a key focus of this research. This article examines physical and chemical analyses of geopolymer mortar based on alkali-activated green tuff at different ages (7 to 180) under ambient temperature conditions (26 ± 3℃) The alkaline activators in the mortar consist of sodium hydroxide with two different molarities (4 and 6), and sodium silicate. Analytical results indicate that higher molarity leads to the generation of more cations in the ionic soup. In the short term, this accelerates geopolymer formation and enhances compressive strength; however, in the long run, it results in increased shrinkage and dimensional instability, leading to the development of cracks. The findings reveal that the compressive strength of the mortar containing alkali-activated green tuff with 4M NaOH(aq) at 180 days is approximately 58% higher than that of mortar containing Portland cement. XRD analysis further demonstrates that the predominant phases formed in the mortar with alkali-activated green tuff are C-A-S-H and N-A-S-H gels. The higher presence of C-A-S-H gel is attributed to the inclusion of slag, constituting half of the alkali-activated binder.