• Title/Summary/Keyword: energy society

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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.

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.

Development of Energy-FMEA for Energy Review of ISO 50001 Energy Management System

  • Song, Kyung-Il;Jang, Joong-Soon
    • Journal of Applied Reliability
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    • v.14 no.2
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    • pp.137-146
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    • 2014
  • This paper is to develop Energy-FMEA for Energy Review of ISO 50001 Energy Management System. Energy Review is the core requirement of ISO 50001. This study develop Energy-FMEA and suggest Energy Review Inventory and Assessment Criteria for performing Energy-FMEA. Also, it shows case study to verify whether to proper.