• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.548-549
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• 2008

최근 고유가 현상이 지속되면서 에너지.자원에 대해 전에 없이 관심이 집중되고, 전체 에너지의 97%를 해외 수입에 의존하는 우리나라의 현실을 생각할 때 에너지 절감은 필수과제가 되었다. 또한, 세계적으로 이슈가 되고 있는 지구온난화와 이산화탄소 배출감소 규제에 대한 움직임 등 환경문제 측면에서도 고효율기기 보급을 통한 에너지 절감은 필수가 되었으며, 한전은 국내 유일의 전력회사로서 이 같은 시대적 요구에 부응하여 에너지 이용 효율향상사업의 확대기반을 구축함으로써 향후에도 국가적인 에너지 경쟁력 확보를 위한 선도적인 역할을 수행할 것이다.

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 1998.10a
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• pp.9-14
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• 1998

“폐열을 이용한 도시에너지 시스템”은 산업단지나 발전소 등에서 발생되는 폐열을 회수하여 원격지로 수송을 하고, 도시지역의 수요처에서 수송된 열을 효율적으로 이용하는 에너지 시스템이다. 본 연구는“폐열을 이용한 도시에너지 시스템”모델링을 위해 시스템을 폐열공급원에서 최종 열수요처까지의 전체시스템을 이루는 GES(Global Energy System)와 열의 입출력·이송 저장·변환이 이루어지는 EFS(Energy Flow System)로 구분하였다. 그리고 EFS를 프로세스별로 구분하고, 이들을 최적화하는 시스템 모델링을 구축하였다.

• Information and Communications Magazine
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• v.34 no.5
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• pp.45-52
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• 2017

전체 전력 사용량 중 주거공간에서의 전력사용 비율이 점차적으로 증가하고 있으며 이로 인한 화석연료 사용의 증가는 기후 변화 및 환경오염에 두 번째로 큰 밀접한 관계를 보이고 있다. 이를 개선하기 위하여 현재의 빌딩과 공장 중심의 에너지 관리에서 더 나아가 주거공간을 위한 에너지 관리 기술의 발전이 필요한 상황이다. 주거 공간의 에너지 관리 솔루션을 찾기 위하여 수용가를 위한 국내외 에너지 관리 표준화 현황을 살펴본 후 이와 관련되어 있는 요소기술들과 통신기술을 중심으로 주거 공간 에너지 관리 ICT 기술들에 대하여 정리해 보았다.

• Journal of KIISE:Computing Practices and Letters
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• v.14 no.3
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• pp.281-285
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• 2008

Wireless sensor networks are closely related with the geometric environment in which they are deployed. We consider the probable case when a routing protocol runs on an environment with many complex obstacles like downtown surroundings. In addition, there are no unrealistic assumptions in order to increase practicality of the protocol. Our goal is to find a routing protocol for maximizing network lifetime by using only connectivity information in the complex sensor network environment. We propose a topology-based routing algorithm that accomplishes good performance in terms of network lifetime and routing complexity as measures. Our routing algorithm makes routing decision based on a weighted graph as topological abstraction of the complex network. The graph conduces to lifetime enhancement by giving alternative paths, distributing the skewed burden. An energy estimation method is used so as to maintain routing information without any additional cost. We show how our approach can be used to maximize network lifetime and by extensive simulation we prove that out approach gives good results in terms of both measures-network lifetime and routing complexity.

• The Magazine for Energy Service Companies
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• s.8
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• pp.20-23
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• 2001

미국의 유니버설 스튜디오에 버금가는 서울종합촬영소와 영화진흥위원회 홍릉사옥이 ESCO 조명사업을 실시했다. 전체 조명기구를 고효율 형광등과 안정기로 교체한 것. 영화진흥위원회는 총 1억 2천여만원이 투자된 이번 사업을 통해 약 $38\%$의 에너지절약효과를 기대할 수 있게 됐다.

• 전기의세계
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• v.20 no.4
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• pp.49-58
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• 1971

블란서 본토의 에너지자원은 북부에서 생산되는 석탄, 삐레네 산록지대의 천연가스와 알프스산맥, 삐레네산맥 및 중앙산지에 분포되어 있는 수력자원이 있으나 국내에너지소비량을 충족하기에 부족한 형편이므로 인접국가로부터 석탄, 석유 및 전기의 수입에 의존해오고 있으며 블란서의 전력은 수력, 화력 및 원자력을 합해서 나라전체 에너지소비량의 약 11%를 감당하고 있는데 아래에 EDF(블란서 전력공사)의 1969년도 보고서(Report)를 중심으로 한 블란서의 전기사정을 살펴보기로 한다.

• Proceedings of the KIPE Conference
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• 2018.11a
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• pp.229-230
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• 2018

본 논문은 태양광 기반의 '독립형 에너지 하우스'의 전체 전력 시스템과 태양광 외장재 모듈의 에너지를 효율적으로 최대 수급하기 위한 BIPV(Building Integrated PV)용 Optimizer의 개발에 대해 기술한다.

• Journal of the Korean GEO-environmental Society
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• v.10 no.6
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• pp.49-60
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• 2009

In order to develop a new rockfall protection fence using high carbon steel wire rod (HSWR) material instead of the conventional wire rope material, the author has conducted the laboratory strength tests of both materials and their connections, and carried out evaluation of absorbing rockfall energy through the vertical field rockfall tests. The vertical filed rockfall tests showed that the new rockfall protection fence with 12 rows of the HSWR could absorb more rockfall energy than 50 kJ which stands for the typical design criteria. In addition, when the quantity of HSWR was increased up to the 16 rows, the capacity of absorbing energy was greatly improved. The new rockfall protection fence was successfully applied to the highway rock-cut slope. As a result of the filed application, its constructability was similar to the conventional fence, but its total image was improved as simple and clean. The total construction cost was saved up to 20% in comparison with the conventional one.

• The Journal of the Korea Contents Association
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• v.22 no.7
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• pp.187-201
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• 2022

This study analyzed the dynamic changes in the energy poverty structure of all households, elderly households, and single-person households in Korea. To this end, a TIP curve was derived and the focus was on changes in energy poverty intensity and poverty incidence. For the data, annual and quarterly data on fuel costs from the National Statistical Office's Household Income and Expenditure Survey were used. And the results were presented using data from the first quarter, where the energy poverty problem can be prominent due to the high proportion of heating costs among the four quarters. As a result of the analysis, there was no clear improvement in poverty intensity and poverty incidence over time in the analysis of all households. However, the analysis of elderly and single-person households showed improvement in poverty intensity and poverty incidence over time. In particular, in the results of the analysis using the data for the first quarter, the poverty intensity and poverty incidence of elderly and single-person households improved remarkably. In addition, the poverty intensity and poverty incidence of the elderly and single-person households were larger than the all households, and the energy poverty of single-person households was more severe than that of the elderly households.

• Explosives and Blasting
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• v.42 no.2
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• pp.12-28
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• 2024

Explosion involving rapid energy diffusion are causing enormous human and economic damage. Due to the advancement of the industry, various and widespread explosion accidents are occurring worldwise, and to prevent such explosion accidents, accurate cause analysis should be the basis. Research analysis related to worldwise explosion accidents was carried out in a limited range for some accidents. By conducting bibliometric analysis of keywords on all the papers published in international journals, this study attempted to derive the overall research trend by period and the latest fields in which future researchers may be interested. As a result of the study of keywords, the number of papers was generally small and the number of overall key words was small from 2005 to 2014, but numerical simulation and artificial intelligence have been used for the analysis of explosion accident cases since 2015, and various studies such as lithium-ion battery and mixed gas, which are the latest research fields, are currently being actively conducted.