• 대한지리학회지
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• 제49권6호
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• pp.833-848
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• 2014

풍력발전단지의 신규 개발과 안정적인 운영 계획 수립을 위해 기후변화에 따른 미래 풍력에너지의 변동성 정보를 파악하는 것이 필요하다. 본 연구는 IPCC 5차 보고서에서 새롭게 도입된 대표농도경로(Representative Concentration Pathway)를 적용한 기후변화 시나리오 자료를 활용하여 2006년부터 2040년까지의 가까운 미래에 대한 풍력에너지(풍력에너지밀도와 잠재전력생산량)의 시 공간적 변동성을 분석하고자 한다. 사용된 기후변화 시나리오는 지역기후모델 HadGEM3-RA를 이용해 생산된 RCP2.6과 8.5자료이다. 시나리오 생산의 기반이 된 지역기후모델을 과거기간에 대하여 ECMWF의 ERA-interim 재분석자료와 비교분석한 결과, 지역 기후모델은 풍력에너지를 육지에서는 과소, 바다에서는 과대 모의하였다. 그리고 변동성 역시 육지에서 과소, 바다에서는 과대 모의하였다. 미래 풍력에너지는 RCP 시나리오별로 다소 차이가 나타나지만 육지에서 증가, 바다에서는 감소할 것으로 예측되었으며 고도가 높은 산지 및 해안지역에서 미래 풍력에너지의 변동성이 증가할 것으로 분석되었다. 지역별 풍력에너지밀도 분석결과 제주에서 크게 증가할 것으로 예상되었으며 변동성도 크게 증가하였다. 미래 풍력에너지의 변동은 주변 기상장의 변화와 연관 지어 해석이 가능하였으나 큰 변동성으로 인한 불확실성이 증가할 것으로 판단할 수 있다. 본 연구를 통해서 분석된 결과는 미래 에너지 수급 및 활용계획 수립에 있어 기초자료로 활용될 수 있으리라 판단한다.

• Asia Pacific Journal of Business Review
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• 제2권1호
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• pp.21-52
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• 2017

Nowadays every technology is becoming smarter. Consequently, intensive use of ICT in the whole industries and cities enables a sustainable approach to meet enormous productivity, efficiency, transparency and conservation of natural recourses. Likewise, the role of ICT in terms of controlling, monitoring in the energy industry allows integrating potential renewables, bulk energy conservation and reliable optimized operation in the entire system. In this paper outlines challenging issues in renewable energy integration in Mongolia and proposes potential recommendations and conclusions. The author investigated the main technologies used in energy industry mainly smart grid, challenges and policy aspect in Mongolian energy sector by using the primary and secondary approach with case studies and literature based methodologies. Based on the policy aspect and current implementation of smart grid, the paper tries to address the readiness for the main application and future potential ICT driven applications. Furthermore, it concluded that ICT convergence is demanded to overcome the current vulnerabilities and significant momentum to leave behind by using its potential energy recourses and favorable geographical state. Policymakers may find this study useful, as it answers the question of whether ICT investment can ultimately reduce energy consumption and may aid in future planning. Even tough, in order to develop a smart grid and integrating renewables firstly set an appropriate market structure, ICT will key enabler to make energy system more profitable and sustainable. Regarding the result of this study, ICT deployment contribution is a huge demand for future opportunities energy in Mongolia.

• 한국막학회:학술대회논문집
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• 한국막학회 2008년도 춘계 총회 및 학술발표회
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• pp.185-188
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• 2008

• Advances in environmental research
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• 제2권3호
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• pp.203-227
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• 2013

Global demand for dwelling energy and implications of changing climatic conditions on buildings confront the built environment to build sustainable dwellings. This study investigates the variability of future climatic conditions on newly built detached dwellings in the UK. Series of energy modelling and simulations are performed on ten detached houses to evaluate and predict the impact of varying future climatic patterns on five building performance indicators. The study identifies and quantifies a consistent declining trend of building performance which is in consonance with current scientific knowledge of annual temperature change prediction in relations to long term climatic variation. The average percentage decrease for the annual energy consumption was predicted to be 2.80, 6.60 and 10.56 for 2020s, 2050s and 2080s time lines respectively. A similar declining trend in the case of annual natural gas consumption was 4.24, 9.98 and 16.1, and that for building emission rate and heating demand were 2.27, 5.49 and 8.72 and 7.82, 18.43 and 29.46 respectively. The study further analyse future heating and cooling demands of the three warmest months of the year and ascertain future variance in relative humidity and indoor temperature which might necessitate the use of room cooling systems to provide thermal comfort.

• International Journal of Railway
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• 제2권4호
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• pp.139-146
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• 2009

Vehicle braking in non-electrified rail systems wastes energy. Advanced flywheel technology presents a way to capture and reuse this braking energy to improve vehicle efficiency and so reduce the operating costs and environmental impact of diesel trains. This paper highlights the suitability of flywheels for rail vehicle applications, and proposes a novel mechanical transmission system to apply regenerative braking using a flywheel energy storage device. A computational model is used to illustrate the operation and potential benefits of the energy storage system.

• 환경영향평가
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• 제17권1호
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• pp.67-79
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• 2008

Global warming, which is one of the most serious challenges, has been the subject of intense debate and concern for many scientists, policy-makers, and citizens for at least the past decade. To protect the health and economic well-being of current and future generations, we must reduce our emissions like carbon dioxide. Alternatives to achieve an energy future without serious global warming are to change to clean and renewable sources of energy like the wind, the sun lights, rivers, the biomass, hydrogen, and oceans. To identify some of the key and new environmental impacts associated with renewable energy and hydrogen energy, we set up the new conceptual methodology. Specifically, new identified environmental and health impacts are related with the usage of hydrogen energy. When comparing with fossil fuel, the renewable energies can reduce the release of carbon dioxide when they are used except hydrogen produced from fossil fuel. However, all renewable energy technologies are not appropriate to all applications or locations. Our results suggest that all of alternatives to replace fossil fuel can release the several global and local impacts although they seems to be smaller than the impacts from fossil fuel. Therefore, the quantitative and detail analysis to assess environmental impacts of the alternative energies might be useful to make our decision for the future energy against the global warming.

• 공학교육연구
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• 제21권3호
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• pp.56-65
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• 2018

With rapid advance of technologies including information and communication technologies, jobs are evolving faster than ever. Architectural engineering is no exception in this regard, and the green architectural engineering is emerging fast as a promising new field. In this study, a Delphi study of expert architectural engineers are conducted to find out (1) near future prospects of the field, (2) near future emerging jobs, (3) competencies needed for these jobs, and (4) educational content necessary to build these competencies with regards to the green architectural engineering. Initial Delphi survey consisting of open-ended questions in the above four areas were conducted and came out with 65 items after duplicate removal and semantic refinements. Further refinements via second and third wave of Delphi results into 40 items that the 13 architectural engineering experts may largely agree upon as future prospects with regards to the green architectural engineering. Findings indicate that it is expected that the demand for green architectural engineering and needs for automatic energy control system increase. Also, collaborations with other fields is becoming more and more important in green architectural engineering. The professional work management skills such as knowledge convergence, problem solving, collaboration skills, and creativity linking components from various related areas seem to also be on the increasing need. Near future ready critical skills are found to be the building environment control techniques (thermal, light, sound, and air), the data processing techniques like data mining, energy monitoring, and the control and utilization of environmental analysis software. Experts also agree on new curriculum for green building architecture to be developed with more of converging subjects across disciplines for future ready professional skills and experiences. Major topics to be covered in the near future includes building environment studies, building energy management, energy reduction systems, indoor air quality, global environment and natural phenomena, and machinery and electrical facility. Architectural engineering community should be concerned with building up the competencies identified in this Delphi preparing for fast advancing future.

• 한국수소및신에너지학회논문집
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• 제23권5호
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• pp.551-558
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• 2012

Due to high oil prices and global warming problems, researching an alternative energy source and decreasing the energy usage will be the key in the future. Unlike other alternative energy sources, geothermal energy is less dependent on the surrounding environment. Geothermal energy is the ideal energy source for buildings due to the simple and space saving installation. The system is semi permanent once it is installed and this will help reduce the energy usage in controlling the climate in buildings. Geothermal energy does not emit carbon dioxide and other gases that are harmful to the environment. Therefore geothermal energy will be the key in solving high oil prices and a decrease in fossil fuels by applying the geothermal energy system to homes to counter future energy crisis.

• Advances in Energy Research
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• 제5권4호
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• pp.305-320
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• 2017

Limited quantity and non-uniform distribution of fossil fuel over the world, along with the environmental concerns of increasing $CO_2$ emissions, indicate that gradual and planned switchover to the sustainable energy sources is the need of the day. Ocean energy is well-distributed over the coasts, abundant, renewable and available in the form of wave energy, tidal energy and thermal energy. India has gathered precious experience from the pilot plants utilizing these methods over the last few years. One of the main constraints is deemed to be the grid connectivity. Time has come to transform this limitation into opportunity. Ocean power can be a very suitable option for the coastal belts and the islands. Implementation of this concept would require large-scale industry participation along with favourable government policies in the coming years. This article attempts a review of the ocean energy initiatives in India and proposes a roadmap for the future.

• 인터넷정보학회논문지
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• 제12권3호
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• pp.139-149
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• 2011

에너지산업의 제반문제와 환경문제 해결을 위해 에너지산업에 IT를 접목하는 '에너지-IT융합' 분야에 대한 국가 차원의 다양한 정책들이 수립되어 사업화되고 있다. 에너지-IT융합은 다양한 에너지산업뿐만 아니라 융합되는 IT 특성에 따라 파급효과가 상이하기 때문에 우리 실정에 부합하는 유망산업 및 육성분야를 선정하는 것이 중요하다. 또한, 에너지-IT융합은 신규 서비스의 출현과 산업구조의 변화가 수반되어 연관된 법규 및 정책의 개편이 필요한데 이와 관련된 연구들은 아직 미흡한 실정이다. 본 연구는 먼저 에너지-IT융합 시 유망산업과 육성분야를 선정 및 평가할 때 사용할 핵심선정요인들을 도출하였다. 이 요인들을 사용하여 에너지산업과 IT 분야 전문가들의 의견을 ANP 방법론 등을 통해 수렴하고 우선순위를 비교 분석하였다. 본 연구 결과로 산출된 핵심선정요인과 방법론 및 우선순위는 학문뿐만 아니라 산업 정책적 발전에도 기여할 것으로 예상된다.