• The Magazine for Energy Service Companies
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• s.34
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• pp.38-56
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• 2005

에너지관리공단은 지난 3월 28일 ''소형열병합발전시스템 ESCO사업 투자사업 표준화(안) 공청회''를 개최했다. 이(안)은 기존 소형열병합발전 ESCO사업이 시공사별로 설계 및 설치범위가 다른데다 절감량 산출근거와 방법이 상이해 소비자 혼란과 ESCO간의 과열경쟁으로 치닫는 점을 보완하기 위해서 마련됐다. 공청회 결과를 토대로 표준화 안이 최종 확정될 예정이며 이 자료는(안)임을 밝혀둔다.

• The Magazine for Energy Service Companies
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• s.33
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• pp.58-69
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• 2005

에너지관리공단은 지난 3월 28일 ''소형열병합발전시스템 ESCO사업 투자사업 표준화(안) 공청회''를 개최했다. 이(안)은 기존 소형열병합발전 ESCO사업이 시공사별로 설계 및 설치범위가 다른데다 절감량 산출근거와 방법이 상이해 소비자 혼란과 ESCO간의 과열경쟁으로 치닫는 점을 보완하기 위해서 마련됐다. 공청회 결과를 토대로 표준화 안이 최종 확정될 예정이며 이 자료는(안)임을 밝혀둔다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.1
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• pp.224-235
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• 2019

The increase in the amount of energy used in the agricultural sector due to the expansion of agricultural machinery and greenhouse horticulture has caused a range of problems, such as an increase in the cost of input, such as heating costs and greenhouse gas emission. To overcome these problems, this study examined the current status of energy use in greenhouse horticulture as well as the change patterns of non-taxable oil and agricultural electricity, and reviewed the current status of the supply of renewable energy and energy saving facilities for agriculture. This study investigated the area of advanced and renewable energy and energy saving facilities implemented, applied the energy saving ratio of advanced and renewable energy and energy saving facilities, and determined the effects of renewable energy in the agricultural sector, such as increase in production, decrease in heating cost, reduction in Government financial expenditure, reduction in greenhouse gas emission, and oil substitution effect.

• The Journal of the Korea Contents Association
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• v.18 no.1
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• pp.422-430
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• 2018

Increase in oil prices and building energy consumption has been a great burden for Korea which has significant energy dependence on foreign energy sources. In this context, reduction of building energy consumption, which comprises 40% of total energy consumption, is a very important issue. This research therefore empirically analyzed a hospital "P" that implemented ICT-based energy consumption and cost reduction initiative. The hospital first replaced existing water absorber for heating/cooling air and boiler for heating water with water heat storage heat pump system. This was accompanied by subscribing to different electricity price plans to maximize cost reduction. Secondly, the hospital additionally applied ICT-based optimized control algorithm that considers surrounding factors (external temperature, changes in energy demand). The analysis of these mechanisms indicate that the ICT-based energy consumption and cost reduction initiative for hospitals can reduce energy consumption by 53.6% with replacement of low-efficiency equipment and additionally by 18.2% with optimized control algorithm. The mechanisms will provide energy consumption reduction opportunities for other hospitals and buildings with high energy consumption.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2002.05a
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• pp.221-224
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• 2002

포항제철소에는 13개의 발전기가 있어 제철소에서 필요로 하는 전력을 자체적으로 945MWH 규모로 공급하고 있다. 발전소에서 사용되는 에너지원은 제철공정에서 부수적으로 발생하는 부생가스(BFG, COG, LDG, CFG)와 외부에서 구매하는 중유, LNG가 있다. 안정적인 전력공급과 비용절감을 위한 발전기 가동계획을 수립하기 위해서는, 조업상황에 따라 변동되는 전력소요량 및 부생가스 발생량을 예측하여 발전기별로 사용될 연료량을 배분하고, 발전기별 효율을 반영한 발전량을 결정하게 된다 이러만 발전기 가동계획 수립을 수작업에 의존하고 있어, 수시로 변화하는 상황에 신속한 대처가 곤란하고, 모든 요소를 고려하기가 어려워 에너지비용을 절감할 수 있는 기회손실의 우려가 있었다. 본 연구에서는 LP 및 NLP를 적응하여 발전기별 연료배분 및 발전량을 결정하는 과정을 자동적으로 수행하는 발전기 가동계획수립 Model을 개발하였다. Data 입·출력용으로 Excel, LP Package는 What's Best, Programming Language는 VBA(Visual Basic for Application)를 활용하였다.

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.42 no.9
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• pp.30-39
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• 2013

• Proceedings of the KIEE Conference
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• 2005.07a
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• pp.754-756
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• 2005

This paper describes a comprehensive set of the reviewed several baseline techniques for demand savings calculations. Major difference exist in the demand savings calculations due to different baseline methods. In this paper, we review the existing baseline techniques and investigate several thought-provoking issues.

• Environmental and Resource Economics Review
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• v.24 no.3
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• pp.463-488
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• 2015

A more detailed design of offset system is needed according to the emission trading system started in 2015. This study aims to estimate the supply of potential offset that can be secured by expanding high-efficiency household electric appliances. The target commodities for analysis are three different householding electric appliances: TV, washing machine, electric fan, refrigerator and air conditioner. By using the ARDL model, we estimated the coefficients of diffusion of these high-efficiency appliances from 2016 to 2022. Then, the potential supply of offset was drawn by calculating the amount of electricity saving by efficiency improvement and by applying the rates of carbon exchange. Supposing that the electricity savings rates of high-efficiency appliances are each 10% and 20%, the accumulated carbon decrement in 2022 was respectively $361,899CO_2t$ and $723,797CO_2t$. The appliance that showed the biggest carbon decrement was air conditioner, and the second biggest was refrigerator and the next was TV, followed by washing machine, electric fan.

• KOREAN POULTRY JOURNAL
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• v.46 no.9
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• pp.120-123
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• 2014

국내 4대 정유사(sk이노베이션, s-oil, gs칼텍스, 현대오일뱅크) 체제에 이어 지난 2010년 삼성토탈주식회사가 국내 5번째 정유사로 등록됨으로써 그 아성에 도전장을 내밀고 있다. 2013년에는 부생연료유1호(상품명 하이신(Hi-sene))가 면세유로 등록되었으며, 올해 하반기부터는 휘발유를 비롯하여 석유제품을 생산하는 명실상부한 정유사의 면모를 구축하였다. 하이신이 양계농장에 난방용 면세유로 사용이 가능해 연료비 절감과 우수한 발열량으로 생산비 절감으로 이어질 수 있어 양계인 들에게 반가운 소식이 아닐 수 없다. 이번 호에는 삼성토탈주식회사 에너지사업본부(본부장 강희만, 이하 삼성토탈)을 소개코자 한다.

• Journal of the Korea Institute of Building Construction
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• v.10 no.2
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• pp.97-104
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• 2010

This study evaluated the energy efficiency of a windows system using built-in blinds, with regard to their insulation performance and their blocking of solar radiation. The study took advantage of the "Physibel Voltra" program as a physical simulation of heat transfer. To simulate the "Physibel Voltra" program, I practiced a mock-up test to determine heating quality and translation condition. I analyzed the propensity to annual energy consumption, the annual quantity of heat transfer, and the annual cooling and heating cost through a computer simulation for one general household in an apartment building. In the test, it was found that compared to a general windows system, a windows system with built-in blinds reduced the annual heat transfer by 10% in cooling states and by 11% in heating states when the blind was up. When the blind was down, the windows system with built-in blinds reduced the annual heat transfer by 25% in cooling states and 30% in heating states. When a windows system with built-in blinds is compared with a general windows system, the quantity of cooling and heating loads is reduced by 283.3kw in cooling states and 76.3kw in heating states. This leads to a reduction in the required cooling and heating energy of 359.6kw per house. It is thus judged that the use of a windows system with built-in blinds is advantageous in terms of reducing greenhouse gas emissions, because the annual TOE (tons of oil equivalent) per house is reduced by 0.078TOE, while $tCO_2$ is reduced by $0.16tCO_2$. In addition, compared with a general windows system, the cost of cooling and heating loads in the system reduces the annual cooling cost by 100,000won, and the annual heating cost by 50,000won. Ultimately, this means that cooling and heating loads are cut by 150,000won per year.