• Title/Summary/Keyword: Energy improvement

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A Study on Effect Analysis of Integrated Demand Management According to Energy System Management Model (Energy System Management 모형을 통한 통합 수요관리 효과분석에 관한 연구)

  • Kim, Yong-Ha;Jo, Hyeon-Mi;Kim, Young-Gil;Park, Hwa-Yong;Kim, Hyeong-Jung;Woo, Sung-Min
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.60 no.7
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    • pp.1339-1346
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    • 2011
  • This paper is developed to demand management scenario of energy consumption efficiency improvement, electricity generation efficiency improvement, network efficiency improvement, change of distribution ratio, movement of energy source, change of heating system, put of CHP to quantitatively assess to impact on energy use of demand management at the national level. This scenario can be applied Energy System Management model was developed based on Energy Balance Flow. In addition, effect analysis through built demand management scenario was quantitatively evaluated integrated demand management effectiveness of energy cost saving, CO2 emission reduction and energy savings of national level by calculating to primary energy source usage change in terms of integration demand management effect more often than not a single energy source separated electricity, heat and gas.

The Research in Rationalization of the use of Energy in Electric Power (에너지 이용 합리화를 위한 전기에너지 사용계획 수립에 관한 연구)

  • Kim, Man-Kook;Nam, Si-Bok
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.23 no.12
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    • pp.66-74
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    • 2009
  • This study investigated and analyzed electrical energy curtailment effect by each business department and by energy use efficiency elevation equipment because do an energy use plan that is enforced in each variety business that is developed in domestic by model. When plan the recent electrical energy use with this, I wish to contribute in energy use general planning establishment improvement that is aiming energy efficiency improvement newly by groping improvement plan moment deduce problem. Specially, search present condition and problem by electrical energy curtailment equipment application that probes mass and analyzed, and is applied in present our country according to analysis contents to the latest energy use plan that was enforced on energy use rationality narration but allowed purpose.

The Effect of New and Renewable Energy Equipment KS Certification Requirements on the Performance of Firms (신재생에너지설비 KS인증 요구사항이 기업 성과에 미치는 영향)

  • Han, Yun-Cheol;Kim, Gunwoo;Kang, Kyu-Young
    • Journal of the Korean Solar Energy Society
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    • v.37 no.5
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    • pp.85-99
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    • 2017
  • New and Renewable Energy Equipment Certification program has been integrated into the KS(Korean Industrial Standards) certification system as of July 29, 2015. This study is to determine whether the KS certification requirement has had a positive effect on corporate performance (e.g. quality improvement, financial result, customer satisfaction) within those that had already acquired the New and Renewable Energy Equipment KS certification. As a result, among the requirements for the KS certification, quality management, product management, and product testing have a positive impact on product quality improvement, and product testing has shown a positive influence on customer satisfaction. Although requisite for the KS certification did not have a significant effect on financial outcome such as increase in revenue, it has shown to have positive consequence to some extent on those firms that newly obtained the certification.

Analysis of the Passive Design Application Status for the Improvement of G-SEED (G-SEED 개선을 위한 패시브디자인 적용현황 분석)

  • Kim, Hye-Won;Tae, Choon-Seob;Kim, Jun-Tae
    • Journal of the Korean Solar Energy Society
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    • v.35 no.6
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    • pp.35-42
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    • 2015
  • The proper use of the passive and active design elements are important for the realization of green buildings. The G-SEED (Green Standard for Energy and Environmental Design) has been implemented in Korea to promote green building construction reflecting these design elements. In this paper, evaluation items of G-SEED which related to the passive design were selected. And improvement direction for the G-SEED was proposed through the analysis of the application status of the passive design elements for the G-SEED certified buildings. This results can be used for developing study on the future improvement of the assessment criteria of G-SEED.

Comparison and Analysis of Domestic and Foreign Building Energy Rating Systems (국내외 건물 에너지성능 인증제도 비교, 분석)

  • Song, Seung-Yeong;Lee, Soo-Jin
    • Journal of the Korean Solar Energy Society
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    • v.27 no.4
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    • pp.77-85
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    • 2007
  • With the increase in the demand for sustainable and environment-friendly development all over the world, it becomes an urgent issue for Korea to reduce $CO_2$ emission. Since building industry accounts for about 40% of international energy and resource consumption and $30{\sim}40%$ of $CO_2$ emission, it is essential to prepare for energy-efficient building. This study aims to seek for improvement direction for a domestic Building Energy Efficiency Rating System through the comparison with foreign systems. Two foreign building energy rating systems which have the similar application scope with domestic one, HERS(Home Energy Rating System) and SAP(Standard Assessment Procedure)2005 were selected. As compared with foreign systems, we intended to suggest improvement direction for effective application of Building Energy Efficiency Rating System in Korea.

A Study on the Improvement Plans of Energy Performance in University Building through the Analysis of Energy (에너지 해석을 통한 대학건물의 에너지 성능개선 방안에 관한 연구)

  • Jung, Jae-Woong;Kim, Dong-Woo;Seok, Ho-Tae;Yang, Jeong-Hoon
    • Journal of the Korean Solar Energy Society
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    • v.30 no.1
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    • pp.50-60
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    • 2010
  • Today, the amount of energy consumption in the university campuses is huge. The effort for the energy consumption reduction in university campuses is certainly needed by the following reason; first, contribution to the greenhouse gas discharge reduction demand. Second, energy cost reduction in university campus. Third, contribution to the improvement of the social awareness as the maximum higher educational institutions. The energy consumption analysis of current situation has to be executed for the energy consumption reduction in university campus. The energy reduction possibility in which it exists in university campuses can be understood through the energy consumption analysis. And the application is possible as fundamental data of the policy establishment for the effective energy reduction in university campuses. Especially, the best way to reduce the energy consumption in university campuses that is the energy consumption reduction of buildings. Accordingly, this study derived the plans for improving the performance of energy in the university building by analyzing case study, so this study analyzed the performance of energy for the university building through VE, a program for the analysis of building energy. Based on this result, this study classified the plans improving the efficiency of energy in university building into the plan for passive control and active control respectively, and suggested some concrete plans, and finally evaluated the performance of decreasing energy consumption for each plan.

Reliability Analysis of Diesel Generators of Wolsong Unit 1

  • Park, S. Y.;Kim, S. H.;Kim, K. Y.;Kim, T. W.;Y. S. Cho
    • Proceedings of the Korean Nuclear Society Conference
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    • 1997.05a
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    • pp.502-507
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    • 1997
  • As a maintenance optimization project to improve the safety of Wolsong NPP (Nuclear Power Plant), reliability of diesel generators are estimated based on the operating experience, and improvement options are suggested. A reliability measure is suggested for the estimation of reliability for standby safety systems to reflect availability. It is assessed that the reliability of diesel generators can be much improved if the suggested improvement options are implemented.

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Analysis of Energy Performance and PMV Improvement by Application of Passive Factor for Office Building Renewal (오피스건물 리뉴얼시 패시브 요소적용에 따른 에너지성능 및 PMV 개선에 관한 연구)

  • Hong, Won-Pyo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.28 no.12
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    • pp.55-64
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    • 2014
  • This paper presents a case study to investigate the monthly calculation method of ISO 13790 applied for a office building. The energy performance analysis according to improvement of insulation and air permeability of windows in K office buildings is investigated by means of building energy efficiency rating tool ($ECO_2-OD$). The K building energy system is tested experimently by the measurement of PMV(predicted mean vote) for the control of indoor thermal environment and heat transmission coefficient of windows and interior walls respectively, before and after the example K office building is remodeled passively. Therefore, Internet based energy assessment program of energy efficiency rating of office building can be applied as a program for the annual energy requirement and for evaluation of energy savings from the experimental and simulation results.

Process Improvement and Evaluation of 0.1 MW-scale Test Bed using Amine Solvent for Post-combustion CO2 Capture (0.1 MW급 연소후 습식아민 CO2 포집 Test Bed 공정개선효과 검증)

  • Park, Jong Min;Cho, Seong Pill;Lim, Ta Young;Lee, Young ill
    • KEPCO Journal on Electric Power and Energy
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    • v.2 no.1
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    • pp.103-108
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    • 2016
  • Carbon Capture and Storage technologies are recognized as key solution to meet greenhouse gas emission standards to avoid climate change. Although MEA (monoethanolamine) is an effective amine solvent in $CO_2$ capture process, the application is limited by high energy consumption, i.e., reduction of 10% of efficiency of coal-fired power plants. Therefore the development of new solvent and improvement of $CO_2$ capture process are positively necessary. In this study, improvement of $CO_2$ capture process was investigated and applied to Test Bed for reducing energy consumption. Previously reported technologies were examined and prospective methods were determined by simulation. Among the prospective methods, four applicable methods were selected for applying to 0.1 MW Test Bed, such as change of packing material in absorption column, installing the Intercooling System to absorption column, installing Rich Amine Heater and remodeling of Amines Heat Exchanger. After the improvement construction of 0.1 MW Test Bed, the effects of each suggested method were evaluated by experimental results.

Estimation of Depth of Improvement by Dynamic Compaction with Soil Conditions (지반조건에 따른 동다짐의 개량심도 평가)

  • Lee, Bong-Jik;Youn, Jun-Sik;Lee, Jong-Kyu
    • Journal of the Korean GEO-environmental Society
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    • v.6 no.3
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    • pp.55-61
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    • 2005
  • Dynamic compaction is a ground improvement technique which is particularly effective for loose granular soils. It has also been used successfully to the cohesive soils with high void ratio, and wastes and fills. For the design of dynamic compaction method, prediction of depth of improvement is very important. The depth of improvement is influenced not only by compaction energy but also by many parameters such as grid spacing, soil property, degree of saturation and site conditions. Based on the test results, the depth of improvement were evaluated with considering compaction energy, soil type and ground water level.

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