• 제목/요약/키워드: Wind Map

검색결과 197건 처리시간 0.026초

국가바람지도 및 국가지리정보에 의한 해상풍력단지 개발계획의 적합성 검토 (Suitability Review on Development Plans of Offshore Wind Farm Based on National Wind Map and Geographic Information)

  • 김현구;황효정;송규봉;황선영;윤진호
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2009년도 춘계학술대회 논문집
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    • pp.534-535
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    • 2009
  • The objective of this research aims preliminary assessments of the proposed plans of offshore wind farm development based on the recently established national offshore wind map and suitability assessment system of offshore wind farm. Incheon Mueodo, Busan Dadaepo-Gadukdo, Sinangun Haeodo have been assessed considering geographic constraints such as water depth, offshore distance, national park, grid connection, and meteorological constraint such as wind power density and wind direction. According to the assessment, Mueodo plan has a weak point in grid connection and several geographic limitations are involved in Haeodo plan while Dadaepo-Gadukdo seems the most possible plan among the review cases. Because of limited assessment in this research, more detail and further consideration are necessary to make a decision of a feasibility project at proposed sites.

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남한 풍력자원 잠재량의 예비적 산정 (Preliminary Estimation of Wind Resource Potential in South Korea)

  • 김현구
    • 한국태양에너지학회 논문집
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    • 제28권6호
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    • pp.1-7
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    • 2008
  • The wind resource potentials of South Korea are estimated as preliminary stage using the national wind map which has been being established by numerical wind simulation and GIS (Geographical Information System) exclusion analysis. The wind resource potentials are classifying into theoretical, geographical, technical and implementation potentials and the calculation results are verified by comparing to other countries' potentials. In GIS exclusion, urban, road, water body, national parks and steep slope area are excluded from onshore geographical potential while water depth and offshore distance from the shoreline are applied as offshore exclusion conditions. To estimate implementation potential, dissemination records of European countries are adopted which is about 1/8 of geographical potential. The implementation potential of South Korea would correspond 12.5GW which is 1.7 times of the national wind energy dissemination target until 2030.

부산광역시 대기환경 파악에 활용가능한 도시대기환경지도 작성에 관한 연구 (The Study on Establishment of the Urban Atmospheric Environment Map for Analysis of Atmospheric Environment in Busan Metropolitan City)

  • 김민경;정우식;이화운
    • 한국환경과학회지
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    • 제24권6호
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    • pp.807-817
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    • 2015
  • In this study the urban atmospheric environment map in Busan was made and it consist of the atmospheric environment element map and the atmospheric environment analysis map. The atmospheric environment element map covered the topography, the urban climate, the air pollutant emission, ozone and PM10 concentrations in Busan and the atmospheric environment analysis map included the thermal environment and the wind flow by using WRF meteorological numerical simulation. The meteorological elements from 2007 to 2011 in Busan were used in this study. As a result, in the center of Busan and Buk-gu along to the Nakdong river was the temperature high. To analyze the air flow of Busan 3 clusters depending on the wind direction were extracted with the cluster analysis. The results of the analysis on the detailed wind field of each cluster showed that the weak ventilation could be happened locally at the specific meteorological condition.

기상정보를 활용한 한반도 풍력자원지도 공간적 분포 특성 (Spatial Distribution Characteristics of Wind Map over Korea Using Meteorological Resources)

  • 허철운;이용섭;이은정
    • 대기
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    • 제20권2호
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    • pp.63-71
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    • 2010
  • In this study, we derived the wind speed at 50 m and 80 m above sea level from 567 stations over a period of 1 year and correlated to measured wind speed at 5 radiosonde sites. From these correlations, we derived and analyzed the spatial distribution of wind map over Korea based on hourly observational data recorded over a period of 5 years from 2004 to 2008. As a results, wind speed is generally high over seashores, mountains, and islands. Mean wind speed over Korea at 50 and 80 m above sea level for 5 years during 2004 to 2008 seasonally are highest at Spring, and then followed by Winter, Fall, and Summer. In 76 (14%) stations, mean wind speed at 80 m above sea level for 5 years during 2004 to 2008 are greater than $5ms^{-1}$. The prevailing winds over Korea at 80 m above sea level for 5 years during 2004 to 2008 are North (44%), Northwest (16%), and West (15%). In 99 stations, the % of wind faster than $5ms^{-1}$ was higher than 40%, and in 62 stations, the % of wind faster than $5ms^{-1}$ was higher than 50%. In 178 station, the % of prevailing winds was higher than 30%, and there are 7 stations which also have wind speeds over $5ms^{-1}$, ranking from highest to lowest, Dongsong, Daegwallyeong, Baekun Mt., Hyangrobong Mt., Sorak Mt., Gosan, and Misiryeong Mt..

남한 풍력자원 잠재량 산정방법 (Estimation Method of Wind Resource Potential in South Korea)

  • 김현구
    • 한국태양에너지학회:학술대회논문집
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    • 한국태양에너지학회 2008년도 추계학술발표대회 논문집
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    • pp.310-313
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    • 2008
  • The wind resource potentials of South Korea are estimated as preliminary stage using the national wind map which has been being established by numerical wind simulation and GIS (Geographical Information System) exclusion analysis. The wind resource potentials are classifying into theoretical, geographical, technical and implementation potentials and the calculation results are verified by comparing to other countries' potentials. In GIS exclusion, urban, road, water body, national parks and steep slope area are excluded from onshore geographical potential while water depth and offshore distance from the shoreline are applied s offshore exclusion conditions. To estimate implementation potential, dissemination records of European countries are adopted which is about 1/8 of geographical potential.

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Tethered Sonde와 Sodar 관측으로 분석한 광양만 지역의 풍환경 특성 (The Properties of Wind Analyzed by Observation of Tethered Sonde and Sodar in Gwangyang Coastal Area)

  • 이화운;박순영;임헌호;김동혁;김민정
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2008년도 춘계학술대회 논문집
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    • pp.324-326
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    • 2008
  • When we urgently need to develop and supply an alternative energy, wind power is growing with much interest because it has relative low cost of power and area of tower. To estimate the wind power resource, it is necessary to make an wind resource map first. On the study of wind resource map in the Korean peninsula, Southern coast was needed to investigate the possibility of developing wind power complex because of good wind resources. In this study, we made a vertical observation to analyze the properties of wind in coastal area. From tethered sonde observation, we knew that synoptic effect had an influence higher in second day than first day. This means local wind circulation is generated on first day but not second day. The local wind made vertical wind shear strong in first day. Also, there was large difference of wind speed between layers at night time by analysis of SODAR observation.

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풍력발전 단지조성을 위한 바람환경 분석 (Analysis of Wind Environments for Siting a Wind Farm)

  • 김현구;최재우;손정봉;정우식;이화운
    • 한국대기환경학회지
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    • 제19권6호
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    • pp.745-756
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    • 2003
  • An analysis of wind environments using computational fluid dynamics and an evaluation of wind resources using measurement data obtained from meteorological observation sites at Homi-Cape, Pohang have been carrid out for siting a wind farm. It was shown that a numerical simulation using computational fluid dynamics would provide reliable wind resource map in complex terrain with land-sea breeze condition. As a result of this investigation, Homi-Cape wind farm with 11.25 ㎿ capacity has been designed for maximum power generation and 25.7 GWh electricity production is predicted.

동의보감 풍문 내 중풍증과 비병증, 역절풍증, 파상풍증 처방의 본초 조합 네트워크 비교 (A Comparative Study on the Herb Network of Prescriptions in the Dongui-Bogam Wind Chapter)

  • 추홍민;김철현;문연주;성강경;이상관
    • 대한한방내과학회지
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    • 제38권6호
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    • pp.1007-1020
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    • 2017
  • Objectives: This study was carried out to investigate whether a prescription's composition varies according to the disease being caused by wind, which is one of the migratory pathogenic factors. Methods: An initial database and binary matrix of Pungmun in Dongui-Bogam, including its herbs and prescription, was constructed. With this data, a network map about wind stroke, arthralgia, acute arthritis, and tetanus in Dongui-Bogam was constructed. Results: Analysis of the network map about Pungmun in Dongui-Bogam revealed that the complete prescription network has more isolated nodes than does each disease's network map. Conclusions: The composition of prescriptions in Dongui-Bogam Pungmun differ according to the disease being caused by wind.

고해상도 육상바람지도 구축을 위한 기상장 수치모의 및 지상강풍 추정 (An Atmospheric Numerical Simulation for Production of High Resolution Wind Map on Land and A Estimation of Strong Wind on the ground)

  • 정우식;이화운;박종길;김현구;김동혁;최효진;김민정
    • 한국태양에너지학회:학술대회논문집
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    • 한국태양에너지학회 2009년도 춘계학술발표대회 논문집
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    • pp.145-149
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    • 2009
  • High-resolution atmospheric numerical system was set up to simulate the motion of the atmosphere and to produce the wind map on land. The results of several simulations were improved compare to the past system, because of using the fine geographical data, such as terrain height and land-use data, and the meteorological data assimilation. To estimate surface maximum wind speed when a typhoon is expected to strike the Korea peninsula, wind information at the upper level atmosphere was applied. Using 700hPa data, wind speed at the height of 300m was estimated, and surface wind speed was estimated finally considering surface roughness length. This study used formula from other countries and estimated RMW but RMW estimation formula apt to Korea should be developed for future.

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한반도 고해상도 수치바람지도 구축 (High-resolution Numerical Wind Map for Korean)

  • 이화운;김동혁;이순환;김민정;김현구
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2009년도 춘계학술대회 논문집
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    • pp.463-466
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    • 2009
  • The numerical simulation optimized by Four Dimensional Data Assimilation (FDDA) with Quick Scatterometer (QuikSCAT) data is carried out to evaluate wind resource characteristics at various heights in the southeastern area of the Korean Peninsula, where wind farms are planned to be built on on- and off-shore as well as comparable diurnal wind variations are characterized at the surface. The temporal and spatial distributions of modeled wind speeds showed good agreement with the observations based on the temporal variation analysis. Model results indicate that the higher model is performed in resolution, the more precise results is at turbine hub height. Occasionally, wind speed variations for each numerical resolution has a different regional and seasonal variations. In the coast area, hub height wind speed of 9km-resolution is simillar to that of 3km-resolution. On the other hand, hub height wind speed of 3km-resolution is simillar to that of 1km-resolution in the Jiri mountainous area.

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