• Explosives and Blasting
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• v.39 no.1
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• pp.22-35
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• 2021

The number of a industrial plant that must be demolished due to functional and structural deterioration has been increased. There is an increasing application of explosive demolition or explosive demolition combined with mechanical demolition to minimize temporal and spatial environmental hazardous factors created during the process of demolition. In this case study, to demolish the industrial plant foundation, which is a reinforced concrete structure, the explosive demolition technique was conducted. As a result of the explosive demolition, the overall crushing of plant foundation structure was satisfactory, and the explosive demolition was completed without causing any damage to surrounding facilities.

• Journal of Convergence for Information Technology
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• v.8 no.6
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• pp.389-397
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• 2018

Recently, Global Shale gas development has expanded, increasing shale gas production has transformed the energy market.As a result of the reduction of energy facilities, in order to overcome the management deterioration of domestic casting valve industry and enter the enlarged shale gas plant, tried to confirm the SWOT factor through the second questionnaire based on the questionnaire survey of related industry experts and previous studies. As a strength-strategy, presented three factors besides collaboration with domestic companies, suggested four factors including product development specialized in shale gas plant as a weakness complement. Thesis offer to scholarly-Practical implications, Internal-external environmental factors, strategization for entering New energy market. thesis offer to scholarly, Practical implications, environmental factors, strategization for entering New energy market. After, analyze a important of research strategy, would like to study the impact on the company according to the ranking of importance.

• Journal of the Korean Society of Industry Convergence
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• v.26 no.4_2
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• pp.705-713
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• 2023

The phenomenon of abnormal climate conditions resulting from greenhouse gas-induced global warming is increasingly prevalent. To address this challenge, global initiatives are underway to adopt environmentally friendly, zero-emission fuels. In this study, we investigate the hydrogen embrittlement characteristics of materials used for eco-friendly hydrogen storage systems. The effects of hydrogen embrittlement on austenitic stainless steels of the FCC series and structural steel of the BCC series were examined. Initially, test samples of three different steel types were prepared in 2t and 3t sizes, and hydrogen was injected into the specimens using an electrochemical method over a 24-hour period. Subsequently, a universal material testing machine (UTM) was employed to monitor changes in mechanical strength and elongation. The FCC series stainless steels exhibited a tendency for elongation to decrease, indicating low sensitivity to hydrogen. In contrast, the mechanical strength and elongation of the BCC series steel changed significantly upon hydrogen charging, posing challenges for prediction. The results of the present study are expected to serve as a fundamental database for analyzing the impact of hydrogen embrittlement on both FCC and BCC series steel materials.

• Journal of the Korean Society of Industry Convergence
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• v.26 no.5
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• pp.875-884
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• 2023

Hydrogen infiltration into metals has been reported to induce alterations in their mechanical properties under load. In this study, we conducted CTOD (Crack Tip Opening Displacement) tests on steel specimens designed for use in liquid hydrogen storage systems. Electrochemical hydrogen charging was performed using both FCC series austenitic stainless steel and BCC series structural steel specimens, while CTOD testing was carried out using a 500kN-class material testing machine. Results indicate a notable divergence in behavior: SS400 test samples exhibited a higher susceptibility to failure compared to austenitic stainless steel counterparts, whereas SUS 316L test samples displayed minimal changes in displacement and maximum load due to hydrogen charging. However, SEM (Scanning Electron Microscopy) analysis results presented challenges in clearly explaining the mechanical degradation phenomenon in the tested materials. This study's resultant database holds significant promise for enhancing the safety design of liquid hydrogen storage systems, providing invaluable insights into the performance of various steel alloys under the influence of hydrogen embrittlement.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.10a
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• pp.221-223
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• 2015

국내 조선소에서 해양플랜트공사 수주가 증가함에도 불구하고 관련 직무종사자들은 전문영어교육을 받지 못하여 직무 진행에 있어서 발주자들과 다양한 분쟁이 발생하고 있다. 따라서 해양플랜트 전문인력 양성 및 직무능력강화를 DACUM(Developing A Curriculum) 직무분석기법을 이용하여 표준해양플랜트 영어교육과정 모델을 개발하여 산업현자에 적합한 교육과정을 제시하고자 한다.

• Journal of the Korean Professional Engineers Association
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• v.26 no.6
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• pp.54-60
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• 1993

• Journal of the KSME
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• v.53 no.10
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• pp.44-48
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• 2013

이 글에서는 최근 심해 원유 및 가스 생산을 위한 심해저 해양플랜트 산업에 대한 소개와 국내외 기술개발 현황에 대해 소개하고자 한다.

• Journal of the Korean Professional Engineers Association
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• v.26 no.5
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• pp.86-93
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• 1993

• Plant Journal
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• v.10 no.3
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• pp.4-19
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• 2014

• Plant Journal
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• v.8 no.4
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• pp.13-16
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• 2012