• Title/Summary/Keyword: 탄소발생량

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업계이슈 - 2009년도 탄소성적표지 인증 사례

  • 한국환경산업기술원
    • The monthly packaging world
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    • s.198
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    • pp.98-107
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    • 2009
  • 한국환경산업기술원이 지난 달 11일 인증신청 기업의 탄소성적 산출 편의성을 제공하고 동일 품목간 탄소성적의 비교 가능성 증진을 위하여 탄소성적표지 인증을 받은 16개 품목에 대한 인증사례를 발표했다. 탄소성적표지는 제품과 서비스의 생산 및 수송, 유통, 사용, 폐기 등의 과정에서 발생하는 온실가스의 배출량을 제품에 표기하여 소비자에게 제공함으로써 시장주도로 저탄소 소비문화 확산에 기여하는데 그 목적이 있다. 본 고에서는 한국환경산업기술원이 발표한 제11차 탄소성적표지 인증 사례 가운데 식품 및 포장관련 사례를 중심으로 살펴보도록 한다.

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An Analysis of Relationship between Carbon Emission and Urban Spatial Patterns (도시패턴과 탄소배출량의 관계 분석)

  • Kim, In-Hyun;Oh, Kyu-Shik;Jung, Seung-Hyun
    • Spatial Information Research
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    • v.19 no.1
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    • pp.61-72
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    • 2011
  • Greenhouses gas emission due to usage of fossil fuel has been known as one of the main causes of global warming. Fundamentally, greenhouse gas is a by-product of economic activity. Since majority of economic activity happens in an urban setting, a countermeasure in an urban setting is needed. Therefore, an analysis of relationship between carbon dioxide emission and urban form will be investigated for urban planning and management in the future. The purpose of this study is to analyze the relationship between carbon dioxide emission and urban spatial patterns, and suggesting an urban form with low carbon dioxide emission. In order to achieve this, first theoretical analysis was carried out on urban spatial patterns related to physical size, usage rate, and activity level. Secondly, Seoul's dam on electricity, natural gas, local heating, petroleum, and water usage and mapping a carbon dioxide emission map. Thirdly, relationship between carbon dioxide emission and urban spatial patterns are analyzed and urban spatial patterns that affects energy usage in urban setting was elucidated, and elicited implications on future directions on urban planning based on our analyses above.

CO2 Evaluation of Reinforced Concrete Column Exposed to Chloride Attack Considering Repair Timing (보수시기를 고려한 염해에 노출된 콘크리트 교각의 탄소량 평가)

  • Kim, Seong-Jun;Kim, Young-Joon;Kwon, Seung-Jun
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.2 no.1
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    • pp.1-9
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    • 2014
  • In this paper, $CO_2$ amount is evaluated considering repairing timing and unit $CO_2$ amount per repair method including various stage of material manufacturing, moving, and construction. Four mix proportions with mineral admixture are considered and repairing timing/numbers are simulated based on the results from Life 365 which can handle chloride penetration. Furthermore two repair methods (simple cover concrete replacement and replacement with electro-chemical method for removing chloride content) are considered and the related $CO_2$ emissions are evaluated. From the study, the case with high W/B (water to binder ratio) ratio shows smaller $CO_2$ emission in construction stage but it increases more rapidly with increasing number of repair. $CO_2$ emission considering electro-chemical method greatly increases with the increasing unit $CO_2$ for the repairing method. The numbers of jumping step (repairing number) are evaluated to be 9 for WB37-OPC, 18 for WB50-OPC, 4 for WB40-SG, and 7 for WB47-SG respectively. RC structures with the longer maintenance free period are evaluated to be advantageous for saving $CO_2$ emission.

A Comparative Study for Product Carbon Footprint of Detergent, Heat Insulating Material, Vacuum Cleaner (Korea, UK and Japan) (한국, 영국, 일본 제품 탄소발자국 기준에 따른 세제, 단열재, 진공청소기 산정 결과 비교 평가)

  • Ju, Hong-Shin;Yeon, Seong-Mo;Shin, Yoo-Jin;Kim, Burmshik;Lim, Noh-Hyun;Jeong, Heon-Chang;Hong, Eung-Pyo
    • Clean Technology
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    • v.18 no.4
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    • pp.440-445
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    • 2012
  • 15 carbon footprint product (CFP) schemes, including Korea Carbon Footprint Label, UK Carbon Trust's Carbon Reduction Label and Japan CFP are implemented in the world. A CFP describes green house gases (GHGs) emissions emitted throughout product's life cycle and is intended to reduce GHGs emissions by labeling a CFP result on product. This study calculates Korea, UK and Japan CFP result of vacuum cleaner, detergent, packagin material in order to analyze the Korea, UK and Japan CFP standards. Our results demonstrate significant differences among then calculated results because of criteria, emission factors, etc. Therefore, there are many difficulties in providing various CFP results and the international standard and guidelines for product category are needed.

A Basic Study for Treating E.A.F. Dust by use of Waste Tire (폐타이어를 이용한 제강분진 처리를 위한 기초연구)

  • 황용길;이상화;이성룡;정석수;최재신;조충형
    • Resources Recycling
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    • v.4 no.4
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    • pp.59-69
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    • 1995
  • Distillation oI the dust generated during waste tue pyrolysis was perIomerl to rccover valuable metal sucll as zlnc. lead and iron. Pemcahilily and carnprcssivc tests were pursucd to ahlain the basic dala for cslraclian of zinc from the slntering propcrtp ol stccl making dusts and distilled carhon of waste tires as wcll as wastc pulp sludge mixlure hr~quet were investigated at various sinlcring lempcraturcs. Permeablllly rncieased with increastng amount of waste pulp in specil~cd istilled carhon due tn the fnrmat~ono f porusily in lhe sample TIE co~npress~vsctr ength showed the vanous values wlth different amDunl of dislilled-carhon adrlit~nilsa nd at diIIerenl sinlering tcmpcralures. X-ray diffifraction anvlyscs oI a hnquet rn~rhtre of steelmaking dusts(20Q didilled carhon and 10% waste pulp sblered ;>I SOOT) showcd thal the briquet consisted ot ZnO and Fc,O.,, hut was not found at the hriguet rintered at over 10OO'C. Crude zinc oxide sintered a1 IOOOC contained OZA Zn.

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The Selection of Spoil-Bank for Reduction of Carbon Emission based on GIS Analysis (탄소배출량 저감을 위한 GIS분석기반의 사토장 선정)

  • Park, Dong Hyun;Kang, In Joon;Kim, Sang Suk;Han, Ki Bong
    • Journal of Korean Society for Geospatial Information Science
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    • v.20 no.4
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    • pp.3-9
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    • 2012
  • The exhaustion of fuel and tremendous greenhouse gas emissions are caused by the sharp increase in the use of fossil fuel. Especially, accounting for over 25% of carbon dioxide emissions, Construction is main environmental problem. So, in this study, we applied network analysis in the selection of spoil-bank to reinforce the GIS to decrease carbon dioxide emissions in construction sites. As a result, we could calculate the expected carbon dioxide emission and transportation cost of the proposed sites by the shortest distance and the least amount of time. We found that if spoil-bank is chosen based on the result, carbon dioxide emissions will be decreased as much as we plant a pine tree. We can also decrease largely by considering and applying complex causes which affect carbon dioxide emissions in construction.

Characteristics of Carbon Capture by the Accelerated Carbonation Method of Circulating Fluidized Bed Combustion Ash (순환 유동층 보일러 애시의 촉진탄산화에 의한 탄소포집 특성)

  • Choi, Young-Cheol;Yoo, Sung-Won
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.25 no.5
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    • pp.165-172
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    • 2021
  • The purpose of this study is to investigate the carbon capture capacity of various inorganic materials. For this purpose, the change in property of ordinary Portland cement (OPC), blast furnace slag fine powder (GGBS), and circulating fluidized bed boiler ash (CFBC) due to carbonation were analyzed. Carbonation curing was performed on all specimens through the accelerated carbonation experiment, and the amount of carbon capture was quantitatively analyzed by thermogravimetric analysis according to the age of carbonation. From the results, it is confirmed that the carbon capture capacity was shown in all specimens. The carbon capture amount was shown in the order of CFBC, OPC, and GGBS. The 28-day carbon capture of CFBC, OPC, and GGBS was 3.9%, 1.3%, and 9.4%, respectively. Carbon capture reaction occurred rapidly at the beginning of carbonation, and occurred slowly with increasing age. SEM image analysis revealed that an additional product generated by carbonation curing in all specimens was calcium carbonate.

The Effect of Reducing Carbon Emissions, According to the Introduction of U-City System (U-City 시스템 도입에 따른 탄소배출량 저감 효과 분석)

  • Jung, Tae-Woong;Moon, Su-Jung;Kim, Yoon-Kwan;Koo, Jee-Hee
    • Spatial Information Research
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    • v.20 no.1
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    • pp.19-26
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    • 2012
  • Since $CO_2$ emissions are recognized as the biggest contribution to climate change, the needs and international efforts for $CO_2$ emissions reduction are increasing. The developed countries are driving strategies to boost green industry as a new growth engine. Following this global trend, based on the ongoing U-City project as a new city model, it is required to analyze the changes of $CO_2$ emissions in U-City to identify its potential for reducing carbon dioxide emissions. This study aims at identifying the potential and effects on $CO_2$ reduction by analyzing the level of $CO_2$ emissions before and after introducing U-City. Bundang-Gu, Seongnam-City & Ilsan-Gu, Goyang-City among Phase I new tow ns were selected as model cities before introducing U-City and Dongtan-Dong, Hwaseong-City as a model city after introducing U-City. The result showed 30% reduction of $CO_2$ emissions in the comparison of tw o models.