• 한국건설순환자원학회지
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• 제16권3호
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• pp.21-27
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• 2021

• 청정기술
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• 제18권4호
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• pp.373-378
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• 2012

폐자동차는 재활용 자원의 주요 원천이며 단계별로 해체 재활용업자, 파쇄 재활용업자 및 파쇄잔재물 재활용업자 등 여러 주체가 재활용을 분담하고 있다. 우리나라는 2015년부터 법적으로 95% 재활용률 달성을 목표로 하고 있는데, 여러 가지 이유로 재활용 모니터링이 원활하지 않은 형편이다. 본 연구는 전기전자제품 및 자동차 재활용 시스템(EcoAS)과 연계하여 국내 폐자동차의 실질 재활용률 산정을 위한 모니터링 체계를 제안한다. 국내 대표 재활용업체를 선정 조사하여 도출한 재활용 시나리오를 바탕으로 표준 재활용률 DB를 구축하고, 이를 활용하여 실질 재활용률을 산출하고자 한다. 또한 차종별 표준 분리품 DB를 활용하여 해체단계의 중량 정보 기록 및 해체 부품 DB 업데이트를 지원함으로써 분리품 재활용 추적을 용이하게 한다.

• 한국자동차공학회논문집
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• 제13권6호
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• pp.105-112
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• 2005

This study aims at evaluating the environmental impacts stemmed from the End-of-Life Vehicle(ELV) treatment systems in Korea, using Life Cycle Assessment(LCA) method. In this study, both environmental burden from the ELV dismantling process & recycling processes and environmental benefit which were derived from the avoided environmental impacts by substituting recycled materials for virgin materials were considered. First of all, the key issues which were defined as the environmental aspects that account for more than $1\%$ out of the total environmental impacts were identified from the Life Cycle Impact Assessment(LCIA). $CO_2$, crude oil, natural gas, coal, etc. were found out to be the key issue parameters. From the LCI Analysis and LCIA studies, it was shown that the significant environmental aspects were related with the recycling process of ferro scrap, the shredding process of compressed car bodies and the dismantling process of end-of-life engines. In particular, the recycling process of ferro scrap has the most significant effects on the environmental impacts of the ELV treatment systems. Based on these results, it is recommended to improve the recycling process of ferro scrap in order to make the ELV treatment systems more environmentally sound.

• 디자인학연구
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• 제17권3호
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• pp.343-352
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• 2004

자유경제가 기반이 된 생산체제 하에서 트랜드의 다양한 욕구충족을 위해 만들어진 현대 소비재의 변화는 사회, 문화 전반에 걸쳐서 여러 양상으로 전개되고 있다. 이 현상은 학문적으로나 기타 이론으로 규명하기 힘들 정도로 빠른 속도로 또한 다양하게 진행되고 있다. 이것은 과학과 정보통신의 발달에 기인한 인간 생활의 다원화된 가치관의 형성과 유관하다고 볼 수 있다. 현대인의 가치관의 다원화현상은 여러 다른 학문분야처럼 디자인에서도 다각도로 연구되어지고 있는데 그 중 개념적으로는 '포스트모더니즘 적이다'라고 하며 이때 포스트모더니즘이 시사하는 바는 기존의 개념(모더니즘)을 다원화 시켜 해체시킨 것을 의미하고 있다. 즉, 디자인분야에 나타나는 복합적이고 개념적인 결과물을 비롯하여 다양한 트랜드를 반영한 제품에 이르기까지 기존의 형태와 전혀 다른 상품들을 말하고 있는 것이다. 이와 같이 시대성을 적극적으로 반영하는 패키지디자인 분야는 다양한 기능을 활용할 수 있는 다기능의 형태로 기존의 특정한 디자인 분야라고 암묵적으로 정해 놓은 영역을 자유롭게 넘나드는 것이 현실이며 다른 분야 역시 그러하다고 사료되는데 흔히 '팬시제품'이라고 일컬어지는 분야에서 현저하게 나타난다. 어떠한 경우는 패키지디자인을 '패러디'하여 '제품화'시키는 예도 있다. 본 연구에서는 이러한 '현상'을 제품 디자인과 패키지디자인 영역간의 탈경계 현상이라고 보고 그러한 것을 실례를 중심으로 고찰하여 유추된 개념과 의미를 토대로 보다 폭 넓게 시대성을 반영한 패키지디자인으로 재조명되어야 한다.

• 한국기계가공학회지
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• 제17권6호
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• pp.83-90
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• 2018

This paper introduces a innovative diamond wire saw cutting technology and its experimental verification that can be utilized for cutting heavy structures. While conventional diamond wire saw cutting technologies such as water cooled cutting method and dry cutting method cause severe environmental problems due to generating massive concrete sludge or dust scattering, the proposed method can eliminate those problems considerably. Through extensive experiments using heavy structure test bed and real bridge pier structure, comprehensive analysis and comparative evaluation about various cutting methods were performed. As a result, the innovative diamond wire saw cutting method could achieve a similar cutting and cooling performance to the water cooled cutting method without generating concrete sludge and it showed an improved cutting and cooling performance to the dry cutting method without dust scattering. Consequently it is confirmed that the suggested cutting technology can be a promising environment-friendly alternative in the field of heavy structure dismantling.

• 한국기계가공학회지
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• 제21권1호
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• pp.22-27
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• 2022

In accordance with the growing trend of decommissioning nuclear facilities, research on the cutting process is actively proceeding worldwide. In general, a thermal cutting process, such as plasma cutting is applied to decommissioning a nuclear reactor pressure vessel (RPV). Plasma cutting has the advantage of removing the radioactive materials and being able to cut thick materials. However, when operating under water, the molten metal remains in the cut plane and re-solidifies. Hence, cutting is not entirely accomplished. For these environmental reasons, it is difficult to cut thick metal. The contact arc metal cutting (CAMC) process can be used to cut thick metal under water. CAMC is a process that cuts metal using a plate-shaped electrode based on a high-current arc plasma heat source. During the cutting process, high-pressure water is sprayed from the electrode to remove the molten metal, known as rinsing. As the CAMC is conducted without using a shielding gas, such as Argon, the electrode is consumed during the process. In this study, CAMC is introduced as a method for dismantling nuclear vessels and the relationship between the metal removal and electrode consumption is investigated according to the cutting conditions.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2003년도 추계학술대회 및 정기총회
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• pp.354-357
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• 2003

In decommissioning activities of nuclear facilities, the analyses and evaluations of data(man power, radiation exposure, waste outputs, equipments, etc ) is very important to accomplish effective decommissioning and dismantling. To handle the data from decommissioning activities of research reactor, we developed its database system. By using database system, we come to filter and analyze the date of decommissioning activities and we can evaluate the extraordinary decommissioning features of research reactor. It is likely to lay out and estimate the optimal plan of decommissioning. We expect that the database system of effective decommissioning activities build up the foundation of commercial reactor decommissioning.

• 한국안전학회지
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• 제34권4호
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• pp.68-75
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• 2019

As the tower crane accident emerged as a social issue in 2017, various government measures were prepared. Most of the measures are focused on erecting, climbing, and dismantling phases. Analyzes of 84 serious accidents related to tower cranes from 2000 to 2018 and 104 near misses accidents from 2016 to 2018 revealed that 50% of the serious accidents occurred during the operating phase. The main occupation influencing operating phase accidents was signalman(81.6% of serious accidents), whose communication and competency were governing causes. This result was the same in 294 questionnaires to signalmen. Signal systems and education policies for tower crane signalman in Korea and foreign countries were analyzed, and standardization of wireless signal system and improvement of education system were propose.

• 한국안전학회지
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• 제37권4호
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• pp.51-57
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• 2022

In recent years, the government's urban housing expansion policy has resulted in increased construction and remodeling work of residential houses and apartments, causing more industrial accidents at elevator installation sites. Typically, accidents occur during the installation and dismantling of work scaffolds inside the hoistways or using non-standardized work scaffolds due to their structural instability. In view of this, the present study deals with the development of a standardized elevator system scaffolding that can be safely installed outside the hoistway, securing the work platform inside the hoistway. An improved version of the scaffolding system eliminates the need to enter the hoistway for the scaffolding installation, thereby preventing accidents.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.708-709
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• 2015

In Korea, a series of noise-reduced aluminum forms are being recently used in apartment housing construction. However, their complicated and time-consuming work processes, and the noise which is still generated due to the inherent property of aluminum when especially installing and dismantling them are have been pointed out as a problem to be certainly solved for increasing their practical use in construction sites. The primary objectives of this study are to propose a conceptual design of a newly designed noise-reduced aluminum form in which the noise can be enormously decreased during form works. The conceptual design in this study improved problems of conventional system aluminum forms, and, later, a system aluminum form developed based on this conceptual design will be able to ensure noise-reduction and safety as well as excellent applicability.