• Applied Chemistry for Engineering
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• v.24 no.4
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• pp.344-349
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• 2013

Energy storage system is an energy reservoir which can store the electrical energy produced by the power plant into the chemical energy at the time whenever it needs to use. Accordingly, the energy storage system can help to improve the energy utilization efficiency and the stabilization of the power supply system. In addition, it can cope with the issues of carbon dioxide reduction and depletion of fossil fuel. Lead-acid battery in the secondary battery fields is one of the most developed technologies. It is also economical, reliable storage device. Therefore, the instantiation case of energy storage system using lead-acid battery was investigated for the reference studies.

• Prospectives of Industrial Chemistry
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• v.20 no.2
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• pp.13-24
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• 2017

태양전지는 온실 가스 감축에 효과가 큰 기후 변화 대응 기술이다. 현재 상업화에 성공한 실리콘 태양전지의 뒤를 이어 박막 태양전지, 페로브스카이트 태양전지 등 차세대 태양전지가 가격과 효율 등을 극복하기 위하여 매우 많이 연구되고 있다. CZT(S,Se) 박막 태양전지는 차세대 태양전지의 유력 후보군인 CIGS, CdTe, 페로브스카이트 태양전지 등에 비해 범용 무독성 원소를 광흡수층으로 사용한다는 장점을 가지고 있지만 아직까지는 이들보다 효율이 낮아 상용화하기에는 많은 문제를 가지고 있다. CZT(S,Se) 박막태양전지의 기본적인 물성, 공정 등을 알아보고 고효율을 달성하는 방법에 대하여 알아보고자 한다.

• Information and Communications Magazine
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• v.26 no.9
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• pp.42-48
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• 2009

IT 산업은 친환경적이라는 일반적인 인식과 달리 IT 기기의 생산, 사용, 폐기 과정에서 유해물질 유출 및 온실가스 배출 등의 다양한 환경 문제를 유발한다. 특히나 IT 산업은 모든 산업의 조달, 생산, 유통 효율화에 핵심 역할을 담당하고 있기 때문에 저탄소 IT 기술의 도입은 전 산업의 에너지소비감축 및 온실가스 저감을 이끌어낼 수 있다. 따라서 본 논문에서는 2009년 최고의 화두인 저탄소 IT 기술의 개요와 필요성을 알아보고, 국내외 추진되는 저탄소 IT 기술의 정책동향을 살펴본다. 그리고 향후 글로벌 시장을 선점하기 위해 기업들이 내놓은 IT 기기 및 장비를 위한 탄소 저감 및 관리 기술들에 대해 알아본다. 다음 기술들은 눈에 보이지 않는 탄소배출량을 기술적으로 측정해 이를 가시화하고, 관련 데이터를 분석하여 실질적인 저감 계획을 세움으로써 지구온난화를 해결할 수 있는 최적의 대안으로 제시되고 있다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.3
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• pp.2249-2254
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• 2015

Currently, green house gas(GHG) emissions in korea is aiming for a 30% reduction that it is compared to BAU by 2020. To this end, the government has proceed to a variety of reduction policies in GHG. In particular, GHG reduction effect in the public buildings is being a active discussion. It needs to reduce GHG for energy efficiency improvements in the way that public buildings are operated and maintained by public taxes. In this background, the purpose of this paper is to study environmental values judgement for non-market goods in the residents who use public buildings. The results of study are as follows; Respond to first suggested price was found the higher in price, the lower in willingness to pay(WTP). The result of second suggested price was as the same. Analysis of DBDC CVM revealed that income level shows a positive impact on WTP, but the other variables are irrelevant to WTP. Therefore, the citizen participation of the local population seems absolutely necessary to more effective GHG reduction of public sector in the future.

• Journal of the Economic Geographical Society of Korea
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• v.24 no.4
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• pp.400-410
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• 2021

This study analyzed the determinants of carbon dioxide emissions through the expanded STIRPAT model using panel data from 16 metropolitan cities and provinces in Korea from 2000 to 2019. After testing cross-sectional dependence and coefficient heterogeneity of panel data, we performed analysis using MG, CCEMG, and AMG estimation methods reflected these characteristics. The results of analysis using the AMG estimation method are as follows. The coefficients of income, population, and energy intensity were statistically significant with a positive sign, but urbanization was statistically insignificant. Reduction of carbon dioxide emissions in Korea can be achieved through an increase in energy efficiency and sustainable economic growth. It is necessary to establish a policy that can contribute to sustainable economic growth by inducing productivity improvement through technology innovation reducing carbon dioxide emissions in the long-term as well as building a low-carbon society through active development of carbon dioxide reduction technology.

• Journal of the Korea Institute of Building Construction
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• v.15 no.1
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• pp.99-105
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• 2015

The building structure has an decisive influence on the environment as it takes over one third part in the energy consumption and greenhouse gas emissions of whole world. Accordingly, every country makes the reduction of greenhouse gas emission compulsory pursuant to Kyoto Protocol of 1997, and Korea government makes an announcement for the improvement of building energy performance in 2014. In this study, the key technology of Energy Saving Environmental-Friendly Building is sorted into 3rd categories, and the analysis of patent trend for patent documents published in Korea, USA, Japan and Europe is carried out. The purpose of this study is to solve the problem of current technology that it cannot show the detailed situation of technique and development strategy of R&D, and to provide a systematic approach for R&D strategy and an exact technology development direction.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.40-43
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• 2011

본 논문에서는 안드로이드 기반의 스마트폰에서 운전자의 운전 패턴에 따른 연료 소비량을 감소하기 위한 운전 습관을 유도하는 방법을 제안하였다. 이 시스템은 차량의 정확한 내부 상태 정보를 바탕으로 운전 상태를 스마트폰으로 제공한다. 차량의 상태정보를 추출하기 위해서 차량 네트워크인 CAN 버스를 사용하였으며, 이를 하드웨어로 구현하였다. 효율적인 ECO_Driving을 위한 차량 데이터들을 추출하여 분석하였으며, 이들 데이터를 바탕으로 운전자에게 에코여부를 제공하는 애플리케이션을 구현하였다. 이 시스템으로 경제운전으로 배기가스 감축, 에너지절약과 사고 예방을 유도할 수 있다.

• Journal of Korean Society of Environmental Engineers
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• v.31 no.8
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• pp.679-689
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• 2009

Light olefins are very important hydrocarbons widely used as the raw materials of the most petrochemicals including plastics and medicines. In addition, the nation's olefin production capacity is regarded as one of the key indicators to predict the nation's economic scale and growth. Steam cracking of naphtha (or called "NCC (Naphtha Cracking Center) technology"), the traditional process to produce light olefins, is one of the most consuming energy processes among the chemical industries. Therefore, this process causes tremendous $CO_2$ emission. To reduce the energy consumption and $CO_2$ emission from NCC process, the present paper, firstly, investigates and analyses some alternative technologies which can be potentially substituted for traditional process. Secondly, applying the alternative technologies to NCC process, their effects such as energy savings, $CO_2$ emission reduction and CER (Certified Emission Reduction) were estimated. It is found that the advanced NCC process can reduce approximately 35% of SEC (Specific Energy Consumption) of traditional NCC process. This effect can lead to the reduction of 3.3 million tons of $CO_2$ and the acquisition of the 128 billion won of CER per year. Catalytic cracking of naphtha technology, which is other alternative processes, can save up to approximately 40% of SEC of traditional NCC process. This value equates to the 3.8 million tons of $CO_2$ mitigation and 147 billion won of CER per year.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.5
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• pp.543-553
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• 2021

As a key policy for achieving the goal of reducing GHG in the building sector, Korea has enforced the mandatory certification of zero-energy buildings for new buildings in the public sector from 2020. This study evaluated a policy to achieve Net Zero by identifying the trend of changes in building energy performance according to policy and presenting a methodology to analyze the current performance state of energy technology applied to buildings. The final goal was to help stakeholders apply appropriate energy technologies for new buildings. For this study, data collected on building energy efficiency certification over the last four years have shown a gradual increase in energy performance. In addition, K-means cluster analysis was used to analyze the performance status of energy technologies applied to buildings. The high and low clusters of education and office facilities were used to analyze the comparative group (2016-2020, 2020). As a result, the solar module area in both high and low clusters of education facilities increased by 261.1% and 283.5%. In contrast, the solar module area decreased by both high and low clusters of office facilities. The most passive and active technologies showed an increase in energy performance.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.654-657
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• 2011

Gartner에 따르면 현재 IT산업에서 배출하는 Co2의양은 전 세계 배출량의 2%에 해당하고, 국내 IT기기의 탄소 배출량은 1,750만톤, 2012년에는 2,110만 톤으로 증가할 것으로 예상하고 있다. 이 중 전 세계 기업의 전산설지 전력 소비량은 1척억kWh가 소모되고 있으며, 서버의 전력소모량은 매년 20%씩 증가할 것으로 보고 있다. 또한 IT 시설물은 이산화탄소가 배출되는 7%의 가장 높은 비율을 차지하고 있다. 이에 따라 에너지 경비 절감 및 효율성을 높이고 탄소 배출량 감소를 위한 기술 및 솔루션 개발을 위한 그린 IT기술의 필요성이 높아지고 있다. 이러한 IT 시설물의 에너지 사용량을 실시간으로 확인, 온 습도 센서를 통한 자료 분석을 통하여 대상시설에 맞는 탄소배출량을 환산하여, 이를 활용한 에너지 시설의 제어를 통해 탄소배출과 경비를 절감시키는 시스템이 스마트탄소 통합관제시스템이다. 그리하여 본 논문에서는 통신 프로토콜 단에서부터 '관제'시스템의 성격에 맞고, 저장소의 공간을 효율적이고, 탄소 배출량을 감축시키는데 일조하는 스마트탄소 통합관제시스템의 프로토콜을 설계하고, 이를 테스트 하였다.