• Title/Summary/Keyword: 방폭

Search Result 167, Processing Time 0.024 seconds

방폭화 시설 및 운용(II)

  • 이춘하;김응식
    • The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.8 no.6
    • /
    • pp.22-28
    • /
    • 1994
  • PDF

Advanced concrete for Skyscraper (초고층 구조물을 위한 특수 콘크리트)

  • Cho, Yun-Gu
    • Proceedings of the Korean Institute Of Construction Engineering and Management
    • /
    • 2008.11a
    • /
    • pp.106-111
    • /
    • 2008
  • Advanced concrete technology, which is the main construction technology of skyscraper, is dealt with in this paper. Advanced concrete technologies are classified into several types such as super high strength concrete(SHSC), low heat concrete(LHC), fire resistant concrete(FRC) and blast resistant concrete(BRC). The necessity, principal and application examples of advanced concrete technology are described respectively. In the last part of the paper, the introduction of HYUNDAI E&C's technology of Advanced concrete and future research trend are described.

  • PDF

A Study on the Barrier of Intrinsic Safety Type (본질안전방폭용 BARRIER에 관한 연구)

  • 오진석
    • Journal of Advanced Marine Engineering and Technology
    • /
    • v.28 no.6
    • /
    • pp.938-945
    • /
    • 2004
  • Intrinsic safety is generally considered the safest method of operating electrical instrumention in potentially explosive atmospheres. The method of intrinsic safety limits the energy passing into the hazardus area. The energy limitation is provided by the use of safety barriers which are mounted in the safe area. Because of the energy limitation, regardless of the fault in the hazardous area, sufficient energy cannot be released to ignite the explosive atmosphere. The following industries are known to have hazardous locations: chemical. munitions, petrochemical, auto(paint spray booths), grain, waste water, printing, distillers, pharmaceutical. breweries, cosmetics, and utilities. In this paper, a isolator type barrier for ship(LNG, LPG, etc,) and test equipment confidence are proposed. The test equipments are designed for mechanical electrical life time test and vibration. All of test results satisfy the goal and the studied barrier shows the improved confidence.

Numerical Analysis of the Subscale Blast Door Deformation and the Subsequent Blast Wave Propagation through the Tunnel by the External Explosion (외부 폭발에 의한 축소형 방폭문 변형 및 터널 내부 폭풍파 전파 거동의 수치해석)

  • Yun, Kyung Jae;Yoo, Yo-Han
    • Journal of the Korea Institute of Military Science and Technology
    • /
    • v.19 no.4
    • /
    • pp.462-468
    • /
    • 2016
  • In this paper, we present the results of the numerical analysis employing CONWEP, LS-DYNA FSI(Fluid Structure Interaction), AUTODYN FSI, LS-DYNA ALE(Arbitrary Lagrange Eulerian) and combination of CONWEP and LS-DYNA ALE for blast door fracture and wave propagation through the tunnel by the external explosion. We compared the numerical analysis results with the subscale test data and selected combination of CONWEP and LS-DYNA ALE method as adequate data generation method for the FRM(Fast Running Model) software development. It is expected to save much time and costs by using the numerical simulation data for the various test conditions.

밀폐공간에서의 Dummy 존재시 가스 폭발특성에 관한 연구

  • Kim, Jong-Bok;Oh, Kyu-Hyung;Lee, Sung-Eun;Kim, Hong;Lee, Young-Chul;Park, Seung-Soo
    • Proceedings of the Korean Institute of Industrial Safety Conference
    • /
    • 1999.06a
    • /
    • pp.87-92
    • /
    • 1999
  • 최근 우리나라에서는 가스사용시설의 확대, 석유화학 플랜트의 급격한 성장 및 LNG, 원유 등의 운반에 필요한 특수선의 증가등으로 인하여 사회 일상주변에 각종의 인화성 액체 또는 폭발성가스가 존재하는 기회가 많아 졌으며, 폭발성 위험물질의 취급이 점차 대규모화, 다양화, 복잡화 되어가고 있다. 이러한 현실속에서 폭발사고 방지에 대한 연구와 폭발성가스가 존재하거나 존재할 우려가 있는 위험장소에서 사용되는 방폭형 전기기기의 방폭성능에 대한 확인과 안전성을 평가하는 기술의 확립이 필요하다. (중략)

  • PDF

Stress Analysis on the Profile of Blast Wall with Finite Element Method (유한요소법을 이용한 방폭벽 프로파일에 대한 응력해석)

  • Kim, Byung-Tak;Koh, Sung-Wi;Kim, Kwang-Heui
    • Journal of the Korean Society of Manufacturing Process Engineers
    • /
    • v.11 no.3
    • /
    • pp.130-137
    • /
    • 2012
  • Blast walls are integral structures at the typical offshore topside module to provide safety barriers for personnel and critical equipment against any blast loading and hydrocarbon explosions. The blast wall structures are usually configured with stainless steel. It can be referred as the good mechanical properties of the stainless steel against blast load, which features the characteristics of significant energy absorption and ductility. In this study, the proposed designs of corrugated panel are examined in order to determine the best design which satisfies the design criteria. The criteria on maximum deflection and stress are used to decide the best design. The effect of inclined angle of profile on deformation characteristics of blast wall is also performed. The numerical study was performed by using NX Nastran 7.5.

A Review on the Blast Resistant Design for Glazing and Window Systems Subject to High-explosive Loadings (공기 중 폭발하중에 대한 창호시스템의 방폭설계 절차에 관한 고찰)

  • Huh, Young-Cheol;Chung, Tae-Young;Oh, Sung-Keun
    • Transactions of the Korean Society for Noise and Vibration Engineering
    • /
    • v.20 no.12
    • /
    • pp.1229-1235
    • /
    • 2010
  • Anti-terrorism design for public buildings as well as military facilities is important to minimize the mass casualties from terrorist attacks. Also, well designed glazing and window systems can reduce the potential injury of human caused by scattering fragment of a glazing. In this paper, blast resistant design for glazing and window systems is investigated based on the U.S. Standard. The design procedures include minimum requirements for the design, standard practice for design evaluation of the glazing and standard test method for evaluation of the performance.