• 제목/요약/키워드: Thermal-hydraulic

검색결과 796건 처리시간 0.033초

Investigation of the various properties of several candidate additives as buffer materials

  • Gi-Jun Lee;Seok Yoon;Taehyun Kim;Seeun Chang
    • Nuclear Engineering and Technology
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    • 제55권3호
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    • pp.1191-1198
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    • 2023

  • Bentonite buffer material is a critical component in an engineered barrier system (EBS) for disposing high-level radioactive waste (HLW). The bentonite buffer material protects the disposal canister from groundwater penetration and releases decay heat to the surrounding rock mass; thus, it should possess high thermal conductivity, low hydraulic conductivity, and moderate swelling pressure to safely dispose the HLWs. Bentonite clay is a suitable buffer material because it satisfies the safety criteria. Several additives have been suggested as mixtures with bentonite to increase the thermal-hydraulic-mechanical-chemical (THMC) properties of bentonite buffer materials. Therefore, this study investigated the geotechnical, mineralogical, and THMC properties of several candidate additives such as sand, graphite, granite, and SiC powders. Datasets obtained in this study can be used to select adequate additives to improve the THMC properties of the buffer material.

  • https://doi.org/10.1016/j.net.2022.11.017 인용 PDF

Characteristics Evaluation of Spindle Thermal Displacement with kinds of Lubrication Oil (AMESim를 이용한 유압 굴삭기용 Main Control Valve의 해석에 관한 연구)

  • 임태형;최종환;양순용;이병룡;안경관
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 한국공작기계학회 2003년도 춘계학술대회 논문집
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    • pp.105-110
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    • 2003

  • The hydraulic excavator has been a popular research object for automation because of its multi-workings and economic efficiency. When it works crane tasks, most of disasters happen. The objective of this paper is to design each components and to construct boom, arm, bucket circuit. These models modeled with AMESim show us change of variables and behavior of excavator. Simulation model will be used for simulator of excavator.

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