• Title/Summary/Keyword: Yun

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Assessment and Improvement of the Horizontal In-Tube Condensation Heat Transfer Model in the MARS code (MARS 코드의 수평관내부 응축열전달 모델 평가 및 개선)

  • Lee, Hyun Jin;Ahn, Tae Hwan;Yun, Byong Jo;Jeong, Jae Jun
    • Journal of Energy Engineering
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    • v.25 no.1
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    • pp.56-68
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    • 2016

  • Extensive researches have been carried out for enhancing the safety of nuclear power plants and, especially, the development of passive cooling systems, such as passive containment cooling system (PCCS) and passive residual heat removal system, is increasingly important, where condensation is a crucial heat transfer mechanism. Recently, Ahn & Yun et al. developed a horizontal in-tube condensation heat transfer model as one of the activities for the PCCS development. In this work, we implemented the Ahn & Yun 's condensation heat transfer model into the MARS code and assessed it using the PASCAL experimental data. Based on the results of the assessment, we identified the limitations of the Ahn & Yun 's model and suggested a modified Ahn & Yun 's model, and assessed the model using various experimental data.

  • https://doi.org/10.5855/ENERGY.2015.25.1.056 인용 PDF KSCI

A Study of Architectural Features on Keunsaemal Asan Sinhang-ri (Birthplace of Former President Yun Bo-seon Village) (아산 신항리 큰새말 (윤보선 전 대통령 생가마을) 건축특성 조사연구)

  • Lee, Wang-Kee;Kang, In-Gu;Moon, Tae-Mo;Song, Yeon-Ah
    • Journal of architectural history
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    • v.19 no.2
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    • pp.7-20
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    • 2010

  • Keunsemal, Sinhang-ri, Dunpo-myeon Asan-si,Chungcheongnam-do is where the former President of Korea, Yun, Bosun was born. The houses of Yun, Il-Sun, Yun, Je-Hyung, Yun, Seung-Gu, and where the former President Yun was born are designated as cultural assets by the Korean government. The three houses of the Yuns are located in the center of the village and the size is much different from regular houses since they were created as large scale house of nobilities during the Chosun Dynasty. Along with the three Yun houses and other houses in the village show a great history and tradition of the history and modern times. Unlike other traditional village arrangement, this village was created during the end of Chosun Dynasty and extended into the modern times. From the village, you can see the changes in architecture within the 200 years from traditional Korean-style houses to modern houses. This investigation is a research / analysis of the architectural characteristics of Keunsemal, Sinhang-ri, Asan-si. People can observe changes in the different types of architectural forms of houses based on the history of Korea and time periods. Within the village, there are large scale house of nobilities which were built during the late Chosun Dynasty, common people's houses, farmhouses which were built during the modern times, common people's houses during the industrialization period, and modern houses with backyards. The village of Keunsemal, Sinhang-ri, Asan-si is a very special cultural asset for Korea because the houses in the village show a clear architectural process of change in styles of houses for Korean history.

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