https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/143 2026-05-03T15:00:58Z 2026-05-03T15:00:58Z https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/7544 2022-12-01T13:40:06Z 2021-12-03T00:00:00Z

Title: 담수생산량 향상을 위한 흡착제 합성 및 흡착등온선 실험 Abstract: Reverse osmosis and evaporation methods, which are typically used for seawater desalination, have disadvantages such as large energy consumption and regular additional costs, so a new seawater desalination method is required. In contrast, the adsorption desalination (AD) technology can simultaneously produce three useful effects (high concentration concentrated water, high purity fresh water, and cold water for cooling) using a low temperature (< 80°C) heat source. And, since it is operated at low temperature (< 30°C) and low pressure (< 10 kPa), it is possible to minimize the occurrence of fouling and scale compared to existing seawater desalination technologies (MED, MSF, RO). Accordingly, it is an environmentally friendly seawater desalination technology that can minimize the use of chemicals in the pretreatment process. In this study, a synthetic silica gel was prepared and performance evaluation was performed to improve the freshwater production and performance of the adsorption desalination method.

2021-12-03T00:00:00Z https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/7508 2022-12-01T13:40:06Z 2021-12-03T00:00:00Z

Title: 진공 막증류장치(VMD)를 이용한 해수농축 시스템 성능평가 실험 Abstract: The production technology of mineral salts and extracts from deep seawater has been required for high value-added industries. To meet this demand, the VMD (Vacuum Membrane Distillation) system was applied and improved to achieve seawater concentration by 11% and reduce power requirement. An experiment using a pilot system was performed, and it was possible to concentrate seawater to 11% or more. Also, the composition of the concentrated and permeate water was found to be satisfactory for industrial application.

2021-12-03T00:00:00Z 최미연 김영석 지호 이호생 문덕수 김현주 https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/2229 2024-01-09T07:48:34Z 20201204-01-01T00:00:00Z

Title: 키리바시 타라와의 지속가능발전목표 달성 지원을 위한 해수플랜트 기술 활용 Authors: 최미연; 김영석; 지호; 이호생; 문덕수; 김현주 Abstract: Pacific island countries, including Kiribati, are suffering from a shortage of essential resources as well as a reduction in their living space due to sea level rise and coastal erosion from climate change, groundwater pollution and vegetation changes. Global activities to solve these problems are being progressed by the UN's efforts to implement SDGs. Pacific island countries can adapt to climate change by using abundant marine resources. In other words, seawater plants can assist in achieving SDGs #2, #6 and #7 based on SDGs #14 in these Pacific island countries. Under the auspice of Korea International Cooperation Agency (KOICA), Korea Research Institute of Ships and Ocean Engineering (KRISO) established the Sustainable Seawater Utilization Academy (SSUA) in 2016, and its 30 graduates formed the SSUA Kiribati Association in 2017. The Ministry of Oceans and Fisheries (MOF) of the Republic of Korea awarded ODA fund to the Association. By taking advantage of seawater resource and related plants, it was able to provide drinking water and vegetables to the local community from 2018 to 2020. Among the various educational and practical fields such as hydroponic cultivation and eco toilets delivered by SSUA, the Association hope to realize hydroponic cultivation and seawater desalination as a self-support project through a pilot project. To this end, more than 160 households are benefiting from 3-stage hydroponics, and a

20201204-01-01T00:00:00Z 김현주 이호생 김영석 문정현 서종범 홍사영 https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/2236 2024-01-10T12:00:20Z 20201203-01-01T00:00:00Z

Title: 해수온도차발전플랜트의 육상형 및 접안형 플랫폼 개념 설계 Authors: 김현주; 이호생; 김영석; 문정현; 서종범; 홍사영 Abstract: 해수온도차발전은 적도해역에서 연중 안정적 운전이 가능하여, 기저부하를 담당할 수 있어서 안정적 재생에너지로 상대적인 경쟁력을 가질 수 있다. 즉, 변동성있는 재생에너지를 이용하는 마이크로 그리드의 경우, 발전하지 못하는 시간을 고려한 에너지저장장치(ESS)를 필요로 한다. 따라서, 이를 고려한 재생에너지 발전단가를 비교해 보거나 현지 디젤발전과 비교해도 적용 가능성이 적지 않은 것으로 판단된다. 이를 실용화하기 위한 연구개발을 통해 실증실험이 키리바시 타라와섬에서 추진될 계획이나 코로나19 사태로 인해 차질을 빚고 있다. 당초, 1MW 해수온도차발전은 육상형 플랜트로 추진될 계획이었으며, 이를 위해 플랜트 핵심장치의 개발이 2016년부터 2018년까지 진행되었고, 2019년 상반기에 전체를 바아지 상에 조립하여 2019년 9월말 동해 구룡포외해에서 단기 시운전 실험을 완료하였다. 이를 분해하여 키리바시로 운반하기 위한 준비를 해 놓고, 2020년에 육상 플랜트동 및 펌프핏을 설계, 건설하고, 플랜트를 운반해 갈 계획이었다. 이를 바탕으로 2021년에는 취수관을 제작, 운반 및 설치하고, 플랜트를 완성하여 장기운전 및 성능평가 실증실험을 완료할 계획이었다. 코로나19로 인해 1년 이상이 순연되어야 할 상황이고, 2년까지 순연될 수 있어서 현장 작업기간을 최소화하는 대안을 필요한 상황이다. 따라서, 해수온도차발전 플랜트를 전용 바아지에효율적으로 고정 설치하여, 라군 내부에 접안하고 돌핀 또는 말뚝 계류로 유지시켜서 장기 운전이 가능하도록 하는 방안을 고안하였다. 이를 위한 OTEC 바아지의 설계, 운반 및 설치 시나리오 등을 정리하여 개념설계를 실시하였고, 육상형 플랜트와 비교함으

20201203-01-01T00:00:00Z