• Title/Summary/Keyword: hydro-power

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An Operating Strategy of In-house Power Supply Systems in the Permanent Shutdown Nuclear Power Plant (원자력발전소 영구정지 시 소내전력공급계통 운영방안)

  • Lim, Hee-Taek;Lee, Kwang-Dae;Jeon, Dang-Hee;Youn, Jong-Hyun;Joo, Ik-Deok
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.67 no.2
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    • pp.337-342
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    • 2018

  • Spent fuel is moved from the reactor into the spent fuel pool when nuclear power plant permanently shutdown. The sole function of a permanently defueled facility is to store spent fuel in a quiescent state. The function of electric system and loads are reduced. It is necessary to establish an operating strategy of electric system in the permanent shutdown nuclear plant. This paper reviews required loads and design criteria considering transition to permanent shutdown. An operating strategy of onsite electric system is proposed considering decommissioning strategy and stage of defueled condition.

  • https://doi.org/10.5370/KIEE.2018.67.2.337 인용 PDF KSCI

A Study on Hydro Energy Development of Discharged Cooling Water at the Power Plant (발전소 온배수의 수력에너지 개발에 관한 연구)

  • Kang, K.S.;Lee, D.S.;Kim, J.Y.
    • 유체기계공업학회:학술대회논문집
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    • 2005.12a
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    • pp.813-818
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    • 2005

  • Cooling seawater of thermal power plant which amounts about 5 cms per 100 MWe has hydro energy of about 3,000 kW at the thermal power plant complex, but this useful hydro energy has not been developed. Therefore, the feasibility study on hydro energy development of three power plants located in the southern and western coast of Korea was performed. Three target power plants are Samcheonpo, Boryeong and Hadong thermal power plant. The design head to discharge cooling water by gravity and the head caused by tidal level in the southwestern coastal area, could be used for the production of electric power. The various alternatives were studied and technical feasibility and economical efficiency were clearly proved.

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Radioactive effluents released from Korean nuclear power plants and the resulting radiation doses to members of the public

  • Kong, Tae Young;Kim, Siyoung;Lee, Youngju;Son, Jung Kwon;Maeng, Sung Jun
    • Nuclear Engineering and Technology
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    • v.49 no.8
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    • pp.1772-1777
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    • 2017

  • Korean nuclear power plants (NPPs) periodically evaluate the radioactive gaseous and liquid effluents released from power reactors to protect the public from radiation exposure. This paper provides a comprehensive overview of the release of radioactive effluents from Korean NPPs and the effects on the annual radiation doses to the public. The amounts of radioactive effluents released to the environment and the resulting radiation doses to members of the public living around NPPs were analyzed for the years 2011-2015 using the Korea Hydro & Nuclear Power Co., Ltd's annual summary reports of the assessment of radiological impact on the environment. The results show that tritium was the primary contributor to the activity in both gaseous and liquid effluents. The averages of effective doses to the public were approximately on the order of $10^{-3}mSv$ or $10^{-2}mSv$. Therefore, even though Korean NPPs discharged some radioactive materials into the environment, all effluents were within the regulatory safety limits and the resulting doses were much less than the dose limits.

  • https://doi.org/10.1016/j.net.2017.07.021 인용 PDF KSCI