• Title, Summary, Keyword: 그린워터

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Water Scarcity Assessment Using Green and Blue Water Concepts (그린워터 및 블루워터를 이용한 물부족 평가)

  • Kim, Sung Eun;Lee, Dong Kun;Yang, Byung Sun;Jin, Yihua
    • Journal of Environmental Impact Assessment
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    • v.27 no.3
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    • pp.267-278
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    • 2018
  • With climate change and population growth, there are significant increases in water scarcity. There have been water security assessments to abate the gap between water demand and availability to support water resource management. However, most of the assessments are focusing on the water that flows through either on or below the land surface, failing to consider water that infiltrates and can be used by vegetation. This study presents water scarcity assessment accounting for Blue and Green water concept, and applied the method to Boryung region. Monthly streamflow, evapotranspiration, and soil moisture were estimated by SWAT modeling, and each of them was used to analyze Blue and Green water scarcity. Blue and Green water scarcity had different aspect, and the result indicated the time when water scarcity is more likely to happen. The water scarcity assessment framework presented in this paper provides novel assessment method integrating hydrologic and ecosystem aspects, thereby improving the understanding of how water resources should be managed.

부산 해안지역 친수공간벨트 조성방안 연구

  • Lee, Han-Seok;Lee, Jung-U;An, Ung-Hui
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • pp.154-156
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    • 2007
  • 본 연구는 부산 해안지역에서 친수공간벨트를 계획하기 위해 친수공간벨트 및 이에 관련된 친수공간클러스터의 개념을 제시하고 개별 친수공간들을 워터프런트 그린웨이를 통해 체계적으로 연결시켜 친수공간벨트를 계획하는 방안을 제시하며 부산 해운대구 해안지역을 대상으로 구체적인 적용사례를 제시한다.

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A Study on the Performance Evaluation Index of Multi-Water Resources Connection and Continuous Utilization in Micro Water Grid (마이크로 워터 그리드에서 다중수원 연계·연속 활용 성능평가지표에 관한 연구)

  • Chae, Soo-Kwon;Lee, Sang-Hoon;Ah, Hong-Kyu
    • Journal of Environmental Impact Assessment
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    • v.28 no.6
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    • pp.556-567
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    • 2019
  • As the number of skyscrapers in micro water grid units such as green building and smart building is increasing in the world, the green building certification system is being implemented to solve problems such as increased demand for water resources and energy. However, researches on the use of sustainable water resources like water reuse and water conservation through linkage and continuous use of water resources, while the power and energy sectors are actively conducting R&D projects in the green building certification system on the micro water grid level. Therefore, this paper analyzes the characteristics and limitations of the water resources sector for the continuous utilization of multiple water sources in the green building certification system, due to the inadequate consideration of sustainability. Then investigates whether various water resources such as constants, nature, and alternative water resources are continuously used in and out of the green building or smart building and complex in the micro water grid unit to suggest evaluation methods and performance evaluation standards.

STUDY ON GREEN WATER BEHAVIOR ON RECTANGULAR SHAPED STRUCTURE (사각형 단면 구조물에 대한 그린워터의 생성 특성 연구)

  • Lee, K.N.;Jung, K.H.;Chae, Y.J.;Park, I.R.;Suh, S.B.
    • Journal of computational fluids engineering
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    • v.20 no.2
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    • pp.96-102
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    • 2015
  • In this study, the green water phenomena on rectangular shaped structure is numerically simulated by STAR-CCM+ to investigate the flow pattern including the velocity profiles in bubbly water flow. 5 phases of the formation of green water in front of and over the rectangular shaped structure is simulated at the design condition which is scaled down by 1:125 from FPSO operating in GOM. All numerical results are compared with the experimental results performed in a two dimensional wave flume. The water deformation due to the green water are obtained by the high speed CCD camera with employing the shadow graphy technique, which is allowed to take the bubbly water flow into images. A series of image taken by shadow graphy technique is analyzed with MQD method to calculate the velocity in bubbly water flow.

A Comparative Study of Sea Trials and Production Processes for Propulsion Type Working Boats with a Tuna Purse Seiner (다랑어 선망어선 탑재용 보조 작업선의 추진기 형태 변화에 대한 제작과정 및 해상시운전 비교 연구)

  • Ha, Seoung-Mu;Jang, Ho-Yun;Seo, Hyoung-Seock;Seo, Kwan-Cheol
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.23 no.5
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    • pp.595-602
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    • 2017
  • In Korea, much research and development have occurred to enhance the technological competitiveness of tuna purse seining fisheries. Due to these efforts, fishing efficiency has been improved with the development of radar, sonar and global positioning systems for fish detection and revisions to the hull forms of tuna purse seiners. However, for skiff boats, net boats and speed boats, which are auxiliary working boats mounted on tuna purse seiners, technology has lagged behind relative to the modernization of the main vessel. In this study, the hull of an existing propeller-based net boat with steel wire net to protect tuna was changed to the hull of a water jet propulsion vehicle to reduce resistance and improve maneuverability. As a result, a prototype of a water jet propulsion option was produced according to the aluminum structure strength standards specified by the Ministry of Oceans and Fisheries, and safety was confirmed by performing a drop test. Moreover, through a sea trial test, an existing net boat was shown to have a speed of 12.0knots and a towing force of 2,545 kgf at 2,500 RPM. The prototype had a speed of 26.7 knots and a towing force of 2,011 kgf at 3,200 RPM, which satisfied the towing capacity standards of auxiliary working boats mounted on tuna purse seiners.

A Space Making of Waterfront City focused on the Sustainable Campus on the Waterfront (워터프론트도시 공간조성방안 연구 -워터프론트 대학의 지속가능 캠퍼스를 중심으로)

  • Lee, Kumjin;Chu, Beom;Song, Changgeun
    • Journal of the Society of Disaster Information
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    • v.13 no.1
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    • pp.6-14
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    • 2017
  • The opportunity provided for design method and strategy of sustainable campus on the waterfront, is the purpose of this paper. Waterfront campus is an important issue as it seeks to revive the sustainability and to renew the facilities. This paper reviews an assessment of its success for waterfront campus in 10 principles such as waterfront, water and safety, climate & energy, green building and transportation, green labs and recycling, health and food, social economic sustainability, fund, human, smart, also concludes with the establishment of space making for the waterfront campus for future educational facilities on the waterfront; implementation of waterfront campus maserplan; building sustainable campus in adaptation to climate change; creative and resilient cooperation.

A Study on Planning of Waterfront Belt in Busan Coastal Area (부산 해안지역 친수공간벨트계획에 관한 연구)

  • Lee, Han-Seok;Lee, Jung-Woo;Ahn, Woong-Hi
    • Journal of Navigation and Port Research
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    • v.31 no.10
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    • pp.885-890
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    • 2007
  • The purpose of this study is for providing a strategic plan of waterfront belt development at the coastal area of Busan city that might enhance the possibility on healthy use of spare time of the residents and demand of tourism, together with raising the potential and the value added effect of coastal space. This study is one of a series of studies for developing waterfront belt at Busan coastal area. In this study we suggest the new concepts of waterfront belt, waterfront cluster and waterfront greenway. And then we present a model of making waterfront belt through waterfront cluster, which is an aggregate of individual waterfront spaces, using waterfront greenway. After that we apply this model to Haeundae coastal area and test the applicability of the model.