• Title/Summary/Keyword: 탄소 중립

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Design Optimization on Wastewater Treatment Pump of Satisfaction for High Head and Low Flow Rate (고양정 및 저유량을 만족하는 폐수처리용 펌프 설계 최적화)

  • KIM, SUNG;KIM, JIN-HYUK
    • Transactions of the Korean hydrogen and new energy society
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    • v.33 no.5
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    • pp.583-590
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    • 2022
  • In this paper, the performance characteristics of the 2 vane pump for wastewater treatment were investigated using response surface method(RSM) with commercial computation fluid dynamics(CFD) software. Design variables of wastewater treatment pump were defined with the meridional plane of the 2 vane pump impeller. The objective functions were defined as the total head and the efficiency at the design flow rate. The hydraulic performance of optimum model was verified by numerical analysis and the reliability of the model was retained by comparison of numerical analysis and comparative analysis with the reference model.

사물 융합 태양전지 기술 및 전망

  • Im, Dong-Chan;Kim, So-Yeon
    • Bulletin of the Korea Photovoltaic Society
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    • v.8 no.1
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    • pp.9-19
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    • 2022
  • 전 세계적으로 탄소중립에 대한 중요도가 증가하면서 국내에서도 이를 위한 그린뉴딜 정책이 발표되었다. 태양전지는 탄소중립 실현을 위한 중요한 신재생에너지 중의 하나이며, 최근에는 실외 거치형 발전 시스템을 넘어 건축 창호 및 외벽, 자동차 선루프, IoT 센서 구동용 전원 등 다양한 분야에서 제품들과의 융합화를 위한 소재/시스템 기술이 개발되고 있다. 본 원고에서는 유기태양전지를 활용한 Product integrated 태양전지 소재 및 응용 기술에 대해서 살펴보고자 한다. 특히, 실내 조명을 이용한 유기태양전지 기술에 대해 자세히 논의하고자 한다.

Basic Research for Carbon Dioxide Reaction Hardening Cement Products (이산화탄소 반응경화 시멘트 2차제품 적용을 위한 기초 연구)

  • Lee, Hyang Sun;Song, Hun
    • Cement Symposium
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    • s.49
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    • pp.21-22
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    • 2022
  • The purpose of this study is to reduce carbon dioxide emissions in the cement industry and to collect carbon dioxide generated in industrial facilities such as cement factories and thermal power plants, store and utilize it, and convert high-value-added resources. While conventional Ordinary Portland Cement is characterized by hardening through hydration reactions, basic research is underway to develop cement that reacts with carbon dioxide and converts it into carbonate mineralization.

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Manufacture of CO2 Reactive Hardening Cement Using Waste Concrete Powder (폐콘크리트 미분말을 활용한 이산화탄소 반응경화 시멘트 제조)

  • Lee, hyang-Sun;Song, Hun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2023.11a
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    • pp.75-76
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    • 2023
  • In the cement industry, various research initiatives are underway to achieve carbon neutrality. Mineral carbonation is a technology that converts carbon dioxide into minerals for storage, and CO2 reactive hardening cement is a type of cement that incorporates mineral carbonation technology. In this study, we aimed to manufacture CO2 reactive hardening cement for reducing carbon emissions in the cement industry by utilizing waste concrete powder generated in the construction sector.

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