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The importance of nuclear energy for the expansion of world's energy demand

  • Guk, Erdogan;Kalkan, Naci
    • Advances in Energy Research
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    • v.3 no.2
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    • pp.71-80
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    • 2015
  • This paper describes nuclear energy technologies for the solution of long term energy problem with better reliability. A short overview about nuclear energy applications are explained with a basic analysis of energy. Furthermore, industrial application, space application of nuclear systems and ship propulsion in nuclear energy application are demonstrated in more detail. This report also includes some examples of the experienced nuclear power plant to identify energy production. The general purpose of the article is to understand how efficiently nuclear systems generates energy, and solve the world's increasing energy demand in our century.

Alternative Selection Method for Energy Efficiency Improvement of Old Detached House (노후 단독주택의 난방에너지 효율 개선을 위한 대안 선정 방법에 관한 연구)

  • Hwang, Seok-Ho
    • Journal of the Korean Solar Energy Society
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    • v.39 no.2
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    • pp.45-55
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    • 2019
  • More than 76% of the detached houses in Korea are over 20 years old. These old detached houses have poor energy efficiency. According to the 2017 Housing Census (Statistics Korea), more than 50% of low-income families live in detached houses. Therefore, the improvement of energy efficiency in old detached houses is needed from the viewpoint of energy welfare. The general method of building energy modelling for the verification of energy efficiency is based on the construction year data of "Building Design Criteria for Energy Saving" due to the cost and time involved in collecting the thermal performance data of buildings. There is poor accuracy with the deterioration of long-term aging of building materials. Also, the selection of alternatives for energy performance improvement is based on the items to be applied, not a performance improvement goal. It is difficult to calculate energy performance that reflects variations in various parameters with dynamic energy simulations. In this study, the influence of long-term aging is used to accurately predict the energy performance of old detached houses. The building energy modelling method is called ENERGY#, which is a static analysis method based on ISO13790. Energy performance is evaluated by a combination of input variables including building orientation, insulation of walls and roof, thermal performance of windows and window/wall ratio, and infiltration rate. Finally, this study provides a way to determine alternatives that meet energy performance improvement goals.

Overcoming Electrical Energy Efficiency Gap in Nepal's Residential Sector

  • Thapa, Shahadev;Kim, Yun Seon
    • Asia Pacific Journal of Business Review
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    • v.3 no.1
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    • pp.19-38
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    • 2018
  • The energy intensity of Nepal is economically not worthy, lacks eco-friendly and importantly not sustainable, and almost four times the average global energy intensity. Considerable efforts have been exercised to reduce the energy gap yet, it is still much to achieve. Nation priority on energy sector was envisaged with promulgation of investment friendly rules and law in hydropower and renewable technology even though, could not harness the sufficient energy. In amid of this acute energy crisis, the government launched the Nepal Energy Efficiency Programme (NEEP) with technical assistance from German International Cooperation (GIZ). Energy Efficiency (EE) practice is the most cost-effective method to reduce the supply and demand gap, reduce on greenhouse gases and pollution, and deter on import of petroleum products which finally improves on trade imbalance. This paper had proposed a framework of energy management team to promote energy efficient technologies in residential consumer. The energy management teams study the past records of energy use pattern of consumers and suggest appropriate technology for energy saving options. The paper provides some reviews of energy efficiency initiatives undertaken by the concern regulatory body which highlights the current status. The comprehensive knowledge acquired through exploratory research is implemented in this paper to identify the various barriers that domestic consumer is experiencing towards the active participation in energy efficiency program launched by the Government of Nepal.

The Analysis of Determining Factors Influencing for Energy-saving Attitudes and Behaviors Related and Electric Energy Consumption (에너지절약태도 및 관련 행동과 전기에너지소비의 영향요인 분석)

  • Huh, Kyung-Ok
    • Korean Family Resource Management Association
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    • v.14 no.3
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    • pp.53-68
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    • 2010
  • This study tried to develop the theoretical backgrounds, explaining consumers energy consumption behavior and analyzed its effects. In other words, this study investigated the factors influencing the amount of electronic energy consumption. In this study, we used 678 questionnaires which were selected a quota sampling by living area who were above 20 years old and married. Summary of results of this study follows. First, attitude for energy saving was positively related with female, high school graduated large size of family members, elderly, and middle-class consumers. In addition, consumers' search for energy saving were appeared passively in young consumers under 30 years old, and the family with the highest household income. Consumers' purchasing energy-efficient products was presented in large size of family members, and young consumers. Second, consumers' environmental oriented behavior, action-directed behavior, healthseeking behavior were significantly related with energy saving behavior, and active information search for energy saving, but not with purchasing energy-efficient products and consuming behavior of electrical energy. Third, the quantity of electric energy consumption was affected by the size of family members, the living size of house related with high energy demand, the attitude for energy saving, and searching information for energy-saving.

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Developing an Energy Consumption Model of Household Unit in Rural Area (농촌지역 농가 에너지소비 모델 개발)

  • Rhee, Shin-Ho;Wang, Jun;Yoon, Seong-Soo
    • Journal of The Korean Society of Agricultural Engineers
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    • v.50 no.4
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    • pp.99-109
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    • 2008
  • As the price of traditional fossil fuels continue to increase, more people attach importance to the pollution of the environment caused by fossil fuel's burning, developing and using renewable energy resources has become a very important project all over the world. Also, the rural energy planning which is another method to improve energy utilization ratio and reduce environment pollution, is also regarded as a very effective way to reduce the energy consumption. There is a quantity of renewable energy resources and natural tribes in rural area, which is both feasible to develop the renewable energy and the regional energy planning. To carry out this, it is needs to know the area's quantity of renewable energy resources and the total energy consumption. This paper is to find out the relationship between rural energy consumption and rural conditions, and to found a energy consumption model which can conjecture the energy consumption in rural family. and the cost of rural family's energy consumption was founded to conjecture how much money dose it cost in rural family's energy consumption. The energy consumption model was concluded using the surveys of 76 families in 14 villages at the area of Chungcheongbuk-Do(province). The main factors to energy consumption was selected out which were number of family members, acreage of house, acreage of farmland and family's annual income.

A Study on the Energy Performance Evaluation of Zero Energy House in Zero Energy Town (제로에너지타운 내 주택 에너지 성능 평가에 관한 연구)

  • Lee, Wang-Je;Baek, Nam-Choon;Lee, Kyoung-Ho;Heo, Jae-Hyeok
    • Journal of the Korean Solar Energy Society
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    • v.35 no.2
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    • pp.85-91
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    • 2015
  • In this study, energy performance analysis of houses in zero energy demonstration town(ZeT) was carried out using the monitoring results. This ZeT was composed 29 zero energy individual houses(ZeH) which were applied passive as well as active technologies. The results are as follows. (1) Residents are generally considered to have been lacking basic mind to save energy, (2) In particular, average yearly total energy consumption per house is 12,834 kWh and specific heating energy is $53.2kWh/m^2{\cdot}yr$ which is higher than that of passive house. This is because of one of the reason just pointed out in subsection (1). (3) Most part of the residual energy load are supplied with only renewable energy, but not operating energy for geothermal heat pump which is use of cheap electricity.

An Energy Efficiency Analysis of Korea based on the Energy Dependence and Independence rate (에너지순수입의존도 및 에너지자립도 지표를 통한 우리나라 에너지경제효율분석)

  • Min, Yun-Ji
    • International Commerce and Information Review
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    • v.16 no.2
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    • pp.199-218
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    • 2014
  • The study was focused on the Energy Efficiency of Korea. Thus this study calculates Energy Intensity and Energy Dependence, Energy Independence rate using data Korea Energy Statistics. This study calculate 'Energy Intensity', 'Energy Dependence', 'Energy Independence rate', which is making use of the Gross Domestic product, Energy Consumption, Energy Export and Import, Energy Gross Input. The analysis of the pater suggests that this goal can be achieved throuth improved efficiency of Energy consumption and Energy Independence.

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BEPAT: A platform for building energy assessment in energy smart homes and design optimization

  • Kamel, Ehsan;Memari, Ali M.
    • Advances in Energy Research
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    • v.5 no.4
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    • pp.321-339
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    • 2017
  • Energy simulation tools can provide information on the amount of heat transfer through building envelope components, which are considered the main sources of heat loss in buildings. Therefore, it is important to improve the quality of outputs from energy simulation tools and also the process of obtaining them. In this paper, a new Building Energy Performance Assessment Tool (BEPAT) is introduced, which provides users with granular data related to heat transfer through every single wall, window, door, roof, and floor in a building and automatically saves all the related data in text files. This information can be used to identify the envelope components for thermal improvement through energy retrofit or during the design phase. The generated data can also be adopted in the design of energy smart homes, building design tools, and energy retrofit tools as a supplementary dataset. BEPAT is developed by modifying EnergyPlus source code as the energy simulation engine using C++, which only requires Input Data File (IDF) and weather file to perform the energy simulation and automatically provide detailed output. To validate the BEPAT results, a computer model is developed in Revit for use in BEPAT. Validating BEPAT's output with EnergyPlus "advanced output" shows a difference of less than 2% and thus establishing the capability of this tool to facilitate the provision of detailed output on the quantity of heat transfer through walls, fenestrations, roofs, and floors.

Analysis of Sectoral Energy Use Pattern with Energy Input-Output Approach (에너지산업연관분석을 이용한 산업별 에너지 사용 pattern 분석)

  • Chung, Whan-Sam;Tohno, Susumu;Shim, Sang-Yul
    • Journal of Energy Engineering
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    • v.17 no.3
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    • pp.145-152
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    • 2008
  • Approaching to the era of high energy price and energy sources scarcity, the demand for governmental intervention to mitigate the short-term shocks is highly increasing. When any energy policy is implemented, double-side effects would be derived. To begin with positive aspect, by decreasing energy import, unnecessary currency outflow can be prevented and the resultant saved money will be appropriately allocated. Furthermore, industrial competitiveness will be assured by reducing use of expensive energy. On the contrary, inappropriate energy saving policy may lead to unexpected negative effects that would hinder improvement in productivity due to indiscreet replacing energy by equipments. In order to enhance effectiveness of energy policy, efforts should be made in advance to understand the energy use pattern of each industry sector which composes the economy. Therefore, in this study, an energy input-output method, one of the macroscopic approaches, is applied to analyze energy use patterns of each industry sector in Korea. Using this method, a quantitative assessment is performed to obtain the energy use intensity and the amount of energy uses with respect to energy types.

A Basic Study on the Application Plan of Renewable Energy Systems for Urban (도시재생을 위한 신재생에너지 적용에 관한 기초 연구)

  • Kim, Seong-Eun;Chung, Min-Hee;Park, Jin-Chul;Rhee, Eon-Ku
    • 한국태양에너지학회:학술대회논문집
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    • pp.120-125
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    • 2008
  • Many countries are faced with problems of energy demand and environmentally. Renewable energy is the interesting solution to deal this problems. In Korea, it is planed to apply the renewable energy to 5% of total energy demand by 2011. For this, the government has supported by various promotion program of renewable energy Policy Consideration of renewable energy system is essential for sustainable urban regeneration. Renewable energy application will be possible to make friendly environmental and sustainable city and deal with the energy and environment problem. This study will provide fundamental data to applying renewable energy systems for urban generation. There are evaluated for economic feasibility of renewable energy systems and analyzed application of them by building type as a urban energy source.

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