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- 저자 : 김윤희(Yoon-Hea Kim) (검색결과 5 건)
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조항문 ( Hang Moon Cho ),김윤희 ( Yoon Hea Kim ) 서울시정개발연구원 2008 연구보고서 Vol.2008 No.32
New- renewable energy takes up about 2% in 2007, and the waste energy takes up 77%. Seoul has 188,210TOE in 2007, which is 3.4% of the whole nation`s energy use, and waste energy utilization is 63.7%. In our nation`s renewable energy use, waste energy utilization is absolute. However, Seoul`s waste energy policy lacks connection to energy policy, and waste energy recovery is inefficient. Therefore, the purpose of this study is to seek a recovery plan according to the grasped waste energy potential amount of Seoul, along with the government policy to improve Seoul waste policy and make a green development. Expected effects of making Seoul waste energy to fuel are using wood chip, making solid fuel out of sewage sludge, expanding resource recovery facility and increasing operating ratio, and making fuel out of food waste. These can replace 195,190TOE crude oil per year, and 405,892 million won`s worth of crude oil price. Also, reduction effect of greenhouse gas due to making fuel from Seoul waste is 2,140,000 ton, and carbon emission price is estimated to have 75.8 billion won. First, form a regional green energy belt connected to resource recovery facility. Promote group energy supply business using biomass in regions such as Gangnam, Gangseo and Seobuk. Second, operate example business of making group energy from renewable energy. Connect with local heating system and recover heat energy from sewage heat to supply local heating and install wood chip steam supply and power generation. Third, promote low carbon green village business. Design into eco-friendly energy green city so that renewable energy such as geothermy and solar energy can be produced and supplied by using not only newtown region but also location of city land and park. Fourth, recover food waste energy by connecting with sewage disposal. Convert food waste and sewage sludge to bio gas in anaerobic digestion tank in water regeneration center. Lastly, political approach according to national vision of ``low carbon-green development`` is necessary. Use benefits of waste energy utilization in policy by comparing and analyzing environmental effect per fuel in Seoul.
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조항문 ( Hang Moon Cho ),김근숙 ( Keun Suk Kim ),김윤희 ( Yoon Hea Kim ),김하나 ( Ha Na Kim ),최지윤 ( Ji Yoon Choi ) 서울시정개발연구원 2007 연구보고서 Vol.2007 No.14
Seoul established the goal through ``eco-friendly energy declaration`` to expand utilization of renewable energy to 2% in 2010 and 10% in 2010. Also, greenhouse gas reduction will be reduced to 20% in 2010 and 25% in 2020, based on 1990. Energy use efficiency will be increased focusing on especially Magok region and form renewable energy town to reduce energy cost of inhabitants. Therefore, the purpose of this study is to grope the town formation based on renewable energy in city plan stage focused on newtown regions, to establish effective policy to expand supply of renewable energy according to ``eco-friendly energy declaration.`` A renewable energy town is a sustainable newtown in a newly planned city, using maximum renewable energy source and unuse energy source. Low energy consumption city formation must be assumed, and on such base there must be more than 50% of renewable energy source and unuse energy source out of total energy consumption. If it is analyzed that upon forming a renewable energy town in Magok region, 100% of air-conditioning and heating energy can be supplied through resource recovery facility, hydrogen fuel cell introduction and sewage heat recovery, and 22% of electric power used can be supplied by renewable energy source. Following plans are necessary in order to form a renewable energy town as Magok region. First, there must be a recovery business and eco-friendly energy system connecting sewage heat, constructed around the place. It is expected that if a renewable energy town is planned in newtown regions currently in plan, it is profitable in securing demanders. Second, a energy control center must be installed within a renewable energy town. System efficiency will be optimized by analyzing and monitoring of building energy consumption and control facility according to overconsumption. Load change can be encountered by predicting demand focused on data analyzing energy use and won unit per each building through introducing carbon-free housing and BEMS system for each building in a renewable energy town. Lastly, they should expand renewable energy supply of the whole city and contribute to the city``s green development.
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