• Journal of Digital Convergence
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• v.16 no.10
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• pp.11-26
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• 2018

A strategic technology selection for GHG reduction is crucial to secure mitigation means. Especially, a technology selection for a public sector is encouraged to consider integrated perspectives due to various stakeholders under public goals. However, previous studies have mainly focused on technological and economic factors, moreover, consistent criteria have not been applied. This study develops indicators for the GHG reduction technology selection from the public perspective based on delphi method with 22 experts. The result provides valid indicators of technology selection for GHG reduction considering an aspect of technology, economics, environment, policy, society. Specifically, 16 indicators from 5 categories on commercialized technology, and 18 indicators from 5 categories on new technology. We expect that those indicators are useful for a decision-making tool of technology selection. Moreover, provide the basis for the study of judgement criteria to evaluate GHG reduction technology.

• The Magazine for Energy Service Companies
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• s.82
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• pp.28-37
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• 2013

본 문서는 사업장 배출시설별로 적용가능한 온실가스 감축기술에 관한 내용으로 '온실가스 감축기술 1~4'는 지 81호에서 확인할 수 있다.

• Journal of Environmental Policy
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• v.14 no.4
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• pp.63-101
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• 2015

Banking and borrowing under the ETS may affect the low carbon technology investment level. If the indirect implementation measures are allowed, firms can gradually adjust their carbon reduction costs between implementation periods based on their carbon reduction costs and emission price forecasts. This implies that banking and borrowing may reduce or increase the level of low carbon technology R&D investment. In an oligopoly market, the effects of the measures are quite different from the ones in a perfectly competitive market. This is because the indirect implementation measures can shift market competition in Cournot competition model. The effects of banking and borrowing on the carbon reduction R&D investments depend on emission reduction costs, marginal production costs, discount rate, initial free allocation, and the cost reduction effects of R&D investment.

• Journal of Climate Change Research
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• v.4 no.4
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• pp.349-358
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• 2013

In this study, the newest technology available to reduce GHG emissions, which can be applicable in energy industries of the future that has large reduction obligations by energy target management and large intensity of GHG emissions, has been investigated by searching the technical characteristics of each technology. The newest technology to reduce GHG emissions in the field of power generation and energy can be mainly classified into the improvement of efficiency, CCS, and gas combined-cycle technology. In order to improve the reliability of the GHG emission factor obtained from the investigation process, it has been compared to the technology-specific GHG emission factor derived from the estimated amount of emissions. Then the GHG abatement measures, using the derived estimation of factor, by using the newest technology to reduce GHG emissions have been predicted. As a result, the GHG reduction rate by technology of CCS development has been expected to be the largest more than 30%, and the abatement rate by technology of coal gasified fuel cell and pressurized fluidized-bed thermal power generation has been showed more than 20%. If the effective introduction of the newest technology and the study of its characteristics is continued, and properly applied for future GHG emissions, it can be prospected that the national GHG reduction targets can be achieved in cost-efficient way.

• Korean Journal of Construction Engineering and Management
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• v.14 no.4
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• pp.55-64
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• 2013

As GHG target management is introduced in Korea, designated establishment takes responsibilities to reduce more than 30% of expected GHG emission until 2020. Although decreasing GHG has been requested to universities which consume great amount of energy, there are difficulties to apply high cost countermeasures. Therefore, this research suggest a low cost, easily-applicable energy saving method, and derive potential GHG reduction amount in the case of SNU, Kwan-ak campus. First of all, 11 rooms of different use were chosen as the samples, and energy consumption in each room was measured. Standard models for each room were built through researching on the electric devices in each room. Moreover, energy consumption was computed for each devices through analyzing the pattern of electricity consumption. 32 GHG reduction technology and action program were chosen, and they were applied to the standard models for individual rooms. Through multiplying energy reduction rate of each program to energy consumption of each electric device, maximum energy reduction of each electric device is derived. Through that, Maximum GHG reduction for individual rooms and each month and the total GHG reduction capacity of Kwan-ak campus were computed. It was found out that approximately $5,311tCO_2$-eq can be reduced, when reduction technology and action program suggested by this research are applied. It appeared 24.48% of requested reduction amount to SNU can be reduced, till 2016.

• 농업기술회보
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• v.47 no.3
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• pp.19-20
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• 2010

오늘날 지구온난화현상이 심각한 환경문제로 대두되어, 1988년 IPCC 발족, 1994년 '기후변화협약' 발효를 통해 온실가스 배출을 저감하고 기후변화에 공동 대응을 모색하기 위한 범지구적 노력을 기울이고 있다. 우리나라도 2020년까지 온실가스 배출량을 감축목표를 BAU(business as usual:온실가스 감축을 위한 행동을 하지 않았을 때의 자연적인 배출변화량) 대비 30%로 결정한 바 있으며, 농업부문도 온실가스 감축기술을 개발하여 농업 현장에 널리 보급할 필요가 있다. 농업부분 온실가스 배출량은 1,840만 $CO_2$톤(2007)으로 산정되어 국가 전체 발생량의 2.9%에 해당한다. 이 중 경종부분이 65%, 축산부분이 35%인데, 경종부분 온실가스의 대부분은 벼농사가 차지하므로 벼농사에 있어서 온실가스 감축이 시급한 것으로 나타났다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2021.06a
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• pp.32-35
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• 2021

본 논문에서는 시간축 정보량을 감축하여 오디오 부호화 효율을 개선하기 위한 기술을 제안한다. 시간축 정보량 감축 방법은 종전의 오디오 코덱에서도 활용되었던 대표적인 기술로 TNS(temporal noise shaping) 기술이 있다. 그러나 TNS 기술은 오디오 신호의 천이구간에서 선별적으로 유효하게 동작하며 그 효율성도 간헐적으로 나타나는데 이는 MDCT(modified discrete cosine transform)에서 예측 과정을 수행하는 구조적인 문제를 갖고 있기 때문이다. 본 논문에서는 종전의 TNS 기술의 취약점을 보완한 ITES(intensive temporal envelope shaping) 기술을 제안하였다. 제안 기술은 TNS 보다 유효한 오디오 시간영역 정보량을 예측하고 감축하였으며, 개선된 음질을 나타냄을 주관적 평가를 수행하여 검증하였다.

• Clean Technology
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• v.20 no.4
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• pp.439-448
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• 2014

The potential mitigation of greenhouse gas (GHG) is studied in the Pohang steel industrial complex (PHSIC). The total GHG emission in 2010 is estimated to be in the range from 4,174,000 to 4,574,000 $tCO_2-eq$ in PHSIC. To meet the target proposed by the government, it is needed to reduce 552,000 $tCO_2-eq$ at minium by 2020. To estimate the potential amount of GHG reduction, the technologies used in the voluntary carbon reduction projects are applied to 51 companies which are subject to GHG target management. From the viewpoint of technological availability and payback period, the fuel conversion and waste heat recovery have an advantage in the short term with a possibility to reduce 160,000 $tCO_2-eq$. In the mid term, the thermal technologies in steel and iron industry have the potential to cut 229,000 $tCO_2-eq$, while the electrical technologies have the potential of 125,000 $tCO_2-eq$ reduction. The gap between the target GHG mitigation and potential reduction using the short and mid term technologies is about 38,000 $tCO_2-eq$, which should be compensated by the fundamental process innovation and the implementation of the most cutting-edge technologies including renewable energy.

• 농업기술회보
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• v.48 no.4
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• pp.25-26
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• 2011

교토의정서(Kyoto Protocol) 기후변화협약에 따른 온실가스 감축에 관한 의정서. 1997년 교토에서 열린 유엔기후변화협약 당사국 총회에서 채택. 선진국은 2008~2012년 사이에 온실가스 배출량을 1990년 배출량 대비 평균 5.2% 감축토록 규정. 한국은 의무감축 대상국이 아니며 미국은 교토의정서를 비준하지 않았음.

• Bulletin of Korea Environmental Preservation Association
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• s.398
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• pp.20-23
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• 2012

온실가스 에너지 목표관리제도 뿐만 아니라 배출권거래제도도 도입을 준비하고 있는 등 외부에서 제도의 압박이 거세지고 있다. 기업에서는 온실가스 감축과 관련하여 조직 전부문이 참여하는 실질적 에너지경영체계를 구축해야 하며 조직 외부와 에너지 감축기술에 대한 커뮤니케이션 네트워크를 구성하는 등 기후변화에 대한 대응이 필수적인 사항이 되었다. 이제는 규제대응을 넘어 미래 전략 차원에서 접근과 노력을 해야 한다.