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RISS 인기검색어
- 검색키워드
- 저자 : 조항문(Hang-Moon Cho) (검색결과 28 건)
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조항문 ( Hang Moon Cho ),윤형호 ( Hyun Gho Youn ),김민경 ( Min Kyeong Kim ),유성희 ( Sung Hee Yoo ),김윤희 ( Youn Hee Kim ) 서울시정개발연구원 2010 연구보고서 Vol.2010 No.36
Diverse energy policy have been carried out since oil crisis around the world, Further, renewable energy systems are more important for incubating green industry as well as carbon reduction, Many countries have employed FIT (Feed-in tariff) or RPS (Renewable Portfolio Standards) to promote renewable energy supply, Korea Government announced that RPS will be started in 2012 and then FIT will be stoped. RPS can affect adversely to Seoul Metropolitan Government for renewable energy supply, because large scale systems are preferred to small scale systems. The purpose of this research is to establish the strategy for inducing renewable energy facilities in Seoul. This research consists with 3 parts. They are ① location analysis, ② potential capacity of renewable energy facility and ③ selection of optimal type of renewable energy by location in Seoul. Only electric power can meets the RPS except heat by law. There are diverse type of renewable energy sources producing electricity, including photovoltaic power, solar thermal power, wind power, geothermal power, bioenergy, and hydrogen fuel cell cogeneration etc.. Properties of the space, land cost, multipurpose utilization of the facility and energy consumption are considered for location selection. Photovoltaic system and hydrogen fuel cell generation systems are suitable in Seoul corresponding to RPS. Suitable locations for photovoltaic systems are schools, rooftop of public buildings, water plants, municipal wastewater treatment plants, peripheral zones of storm reservoirs. But the reasonable way to installing photovoltaic panel is not only generating power but also utilizing the panel as roof or canopy for citizen`s convenience. Hydrogen fuel cell unit is not a type of renewable energy production system but high efficiency cogeneration facility called new energy system. Considering, about half million households receiving heat from district heating system, fuel cell is a charming cogeneration system in Seoul, because it can be networked to the district heating system for dealing heat. Suitable locations for hydrogen fuel cell systems are rooftops of large buildings, hotels, large hospitals which consuming large amount of heat and electricity all around year. In addition municipal wastewater treatment plants are good site for hydrogen fuel cell generation, because of biogas from anaerobic digestion system is a good energy source for power generation in the plants, Potential capacity of the photovoltaic and fuel cell for RPS in Seoul are 29,762kW and 130,070kW respectively as belows. For the successful inducement of RPS project facilities, Seoul metropolitan Government have to establish master plan for making public building and facilities as the base of renewable energy production, Water plants and storm reservoirs have, Especially municipal wastewater treatment plants has not only large scale of land but also biogas production system, If parking lot have canopy with photovltaic panel, citizens would feel convenience. Small site must be bundled because large scale project for more charming han small scale project.
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조항문 ( Hang Moon Cho ),김근숙 ( Keun Suk Kim ),김윤희,김하나,홍재선 서울시정개발연구원 2007 연구보고서 Vol.2007 No.8
According to the lack of based data about energy demand and supply in Seoul, the policy of energy demand and supply is formality. The research need to be a based data about the status of regional energy demand and supply for stable energy supply. The purpose of this report is analyzed energy consumption in Seoul through regional electricity consumption, city gas consumption, petroleum consumption, district heating consumption and energy consumption by sector. The main contents of the resoults are as follows; Total electric power use of Seoul is gradually increasing, and Gangnam-gu and Seocho-gu show much higher electric power use compared to other regions, which Gangnam-gu takes up 10.5%(4,296,000MWh/year) of total electric power consumption of Seoul in 2006. Total gas use of Seoul is gradually decreasing, and Gangnam-gu and Nowon-gu show much higher gas use compared to other regions. Total local heating use of Seoul tends to decrease, and residential use takes up 92% of all local heating use. Petroleum use of Seoul is also gradually increasing. But petroleum use of civic centers and Seobuk life zone is analyzed as less than half of three regions mentioned above. Policy proposals for analysis of Seoul energy consumption feature is as the following. First, establish energy statistics. It is important to establish the standard segmented into expanded operation of energy total investigation, reorganization of Seoul statistics annual report and investigation of energy use per particular service. Second, establish relative data system affecting energy consumption. It is important to establish data about not only attribute data of building such as building data investigation and local economic activity investigation, but also data about energizing sociology index. Lastly, construct energy data system. It is necessary to collect and analyze energy consumption and supply amount per region and use.
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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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