• 조명전기설비학회논문지
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• 제27권5호
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• pp.18-25
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• 2013

Various DSM (Demand Side Management) programs have been developed and carried out to use the limited energy resources of human-beings reasonably. LED lighting is one of essential DSM programs and the development of technologies is ongoing vigorously. Recently, one-person households have been increased and the electricity consumption pattern is different with conventional households because residents live as a single. On the other hand, owners of the one-person households tend to not prefer to install high efficient appliances due to the cost increasement. Therefore, the existing DSM subsidy programs should be revaluated so that the owners decide to install high efficient appliances.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 2000년도 THE THIRD INTERNATIONAL CONFERENCE ON AGRICULTURAL MACHINERY ENGINEERING. V.III
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• pp.764-769
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• 2000

A new transplant production system that produces high quality plug seedlings of specific crop has been studied. It is a plant factory designed to produce massive amount of virus free seedlings. The design concept for building this plant factory is to realize maximum energy efficiency and minimum initial investment and running cost. The basic production strategy is the sitespecific management. In this case, the management of the growth of individual plantlet is considered. This requires highly automated and information intensive production system in a closed aseptic environment the sterilized specific crops. One of the key components of this sophisticated system is the irrigation system. The conditions that this irrigation system has to satisfy are: 1. to perform the site specific crop management in irrigation and 2. to meet the no waste standard. The objective of this study is to develop an irrigation scheduling that can implement the no waste standard.

• 대한안전경영과학회지
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• 제14권4호
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• pp.117-123
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• 2012

For an effective energy management in intelligent buildings it is necessary to gather information about position/absence of people and the level of population. In this paper the smart occupancy detection system using the active RFID is developed to satisfy such a demand based on the results of previous research. First of all the design considerations and functions of the system are introduced. In sequence the functions of the system is presented, and then the performance of the developed system is tested and verified through various field tests. The developed core technology can be also applied to other fields such as security, healthcare, smart home, etc.

• 동력기계공학회지
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• 제20권6호
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• pp.99-104
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• 2016

In this study, we researched the energy load according to the change of the inner window area ratio, the distance of the air gap and the azimuth of the curtain wall building, which installed the multistory double-skin facade(DSF). and we compared the results with the no double-skin facade situation as follows. With the DSF, it is better than other case, when the window area ratio is 40% and the air gap is 1.2m on the west, south-45-west, south-45-east and east. And it's best when the window area ratio is 40% and the air gap is 0.4m on the south. And on the east or south-45-east, the window area ratio is 40% and the air gap is 1.2m is better than other case with the DSF. On south, it is best when the window area ratio is 100% without DSF. On the south-45-west or west, it is best when the window area ratio is 40% without the DSF.

• KEPCO Journal on Electric Power and Energy
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• 제8권2호
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• pp.69-72
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• 2022

This paper actually investigates the load on major large-scale buildings in the downtown area, examines the economic feasibility of installing PV and ESS in a microgrid target building, and evaluates whether an electric vehicle capable of V2G through two buildings is effective as an economical analysis program (HOMER) was analyzed using. It is economical to install a mixture of ESS rather than using the whole PV, and it is shown that if there is an electric vehicle using the V2G function of EV, there is an economic effect to replace the PV. So that Incentives and policies are needed to replace a large area of PV and utilize the existing parking lot to lead EV as a resource of the microgrid. Currently, P2X technology that stores power as ESS or converts it to other energy to control when surplus renewable energy occurs in large-capacity solar power plants and wind farms, etc. This is being applied, and efforts are being made to maintain the stability of the system through the management of surplus power, such as replacing thermal energy through a heat pump. Due to the increase in electric vehicles, which were recognized only as a means of transportation, technologies for using electric vehicles are developing. Accordingly, existing gas stations do not only supply traditional chemical fuels, but electricity, and super stations that also produce electricity have appeared. Super Station is a new concept power plant that can produce and store electricity using solar power, ESS, V2G, and P2G. To take advantage of this, research on an urban microgrid that forms an independent system by tying a large building and several buildings together and supplies power through a super station around the microgrid is in full swing.

• 한국전자통신학회논문지
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• 제18권1호
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• pp.149-156
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• 2023

본 연구는 에너지 참여형 소비자를 위한 블록체인과 연계한 ESS 전력거래 시스템을 개발하고자 하였다. 신재생에너지 ESS 전력량 및 수요정보를 공개할 목적으로 블록체인 DB에 스마트 컨트랙트 시스템을 구축하고 에너지 프로슈머와 컨슈머의 블록체인 DB 데이터를 활용하여 전력거래시장의 유연한 확대를 위한 현실적인 솔루션을 제공할 수 있도록 하였다. 따라서, 블록체인과 연계한 ESS 전력거래 시스템을 개발하는데 주요 내용으로 ESS 관리를 위한 클라우드 기반 WEB 구축, 블록체인 활성화를 위한 코인 발행 및 거래소 등록, 블록체인 기술을 반영하기 위한 전자지갑 생성, ESS 기반 생산 수요 자료수집 및 공급과 관련한 블록체인 데이터베이스 구축, 블록체인 기반 플랫폼 선정 및 기반 구축, 스마트 컨트랙트 제작 등을 고려하여 구현하였다.

• 한국주거학회논문집
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• 제23권6호
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• pp.31-38
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• 2012

In this paper, we draws tendency of the electricity consumption in residential buildings according to inhabitants Composition types and the level of incomes. it is necessary to reduce energy cost and keep energy security through the electricity demand forecasting and management technology. Progressive social change such as increases of single household, the aging of society, increases in the income level will replace the existing residential electricity demand pattern. However, Only with conventional methods that using only the energy consumption per-unit area are based on Energy final consumption data can not respond to those social and environmental change. To develop electricity demand estimation model that can cope flexibly to changes in the social and environmental, In this paper researches propensity of electricity consumption according to the type of residents configuration, the level of income. First, we typed form of inhabitants in residential that existed in Korea. after that we calculated hourly electricity consumption for each type through National Time-Use Survey performed at the National Statistical Office with considering overlapping behavior. Household appliances and retention standards according to income level is also considered.

• 대한안전경영과학회지
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• 제16권2호
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• pp.53-61
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• 2014

The disaster and safety accidents in any construction site occur inevitably. Since the on-site disaster and accident occurrence became one of major concerning factors in construction site, architects & building executers have been flooded with safety management advices. The purpose of this paper is to survey and analyze the effect of the application of Safety Patrol Management System(SPMS) upon the reduction of disaster & accident occurrences in construction site. In order to estimate and reduce the disaster and accident ratio in construction site, various surveyed data has been analysed. It will establish the suitable design standards and suggest the basic database for estimating disaster and accident ratio.

• 한국건설관리학회논문집
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• 제19권2호
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• pp.38-49
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• 2018

파리협약 비준 이후 온실감축에 대한 중요성 및 국가 의무가 커짐에 따라 정부에서는 건축산업의 온실가스 감축을 위한 정책을 지속적으로 강화해 나가고 있으며, 특히 노후건축물에 대한 에너지 성능개선의 필요성을 강조하고 있다. 2014년 이후 정부에서는 공공 노후건축물 그린리모델링 사업의 시공비 지원 등으로 시범사업을 운영 중에 있으며 이를 통해 그린리모델링의 모범사례를 개발하여 민간에 그린리모델링을 활성 시키고자 한다. 본 연구에서는 공공 노후건축물의 그린리모델링을 통한 수준별 경제성을 분석하였으며, 해당건물의 대안을 계획하기 위해 건물 육안조사 및 장비측정을 수행하였다. 개선안은 대안을 종합한 그린리모델링 계획안으로 수준별 5개의 개선안을 개발하여 각 안에 대한 경제성을 분석하였다. 분석방법은 ECO2를 통한 1차 에너지소요량 산정 및 LCC 분석을 진행하였으며, LCC 측면에서는 개선 3, 4안(중간수준 안)이 가장 우수한 것으로 분석되었으며, 다음으로 최대비용안, 최소 비용 안 순으로 결과가 도출되었다. 이 결과로 향후 진행될 그린리모델링 성능계획 및 경제성 분석 시 기초자료로서 활용이 가능 할 것으로 예상된다.

• 한국안전학회지
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• 제22권5호
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• pp.33-40
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• 2007

Standard safety management costs can not be applied to each site with same rate, it is very difficult, because it depends on the experience, work method, work kind, work progress schedule, and hazard level of each construction company. Therefore, this study is to find out hazard level of each work kinds through questionnaire and interview and investigate analyze the status which standard safety management costs have been used. Also, this study is to show reasonable rates of standard safety management costs in construction industry and to set up countermeasures against those problem after reviewing its status in korea with in Japan and Europe. This study is to investigate eleven project kinds of domestic system, first, and to investigate eleven items of apartment bldg, office. Also this study is to investigate and analyze performed costs of presently processing worker finished work so that it shows a new reasonable rate against standard safety management costs in construction industry, in order to make basical data and material to be systemized.