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김준필(Junpil Kim),차재민(Jae-Min Cha),홍대근(Daegeun Hong),서석환(Suk-Hwan Suh) (사)한국CDE학회 2014 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2014 No.2
The application types of systems engineering can be classified into precedented and unprecedented system design. Particularly, in the cases of precedented system design, it is achievable to save development time and cost through utilizing reference data related to the precedented system as system initial specifications. By reverse engineering process based on systems engineering, the sources can be restructured and utilized as reference data to perform the precedented system design effectively. In this paper, a reference model for system initial specification deduction is proposed, which has high usability and makes the completeness of reference data better through improving the existing reverse engineering processes based on systems engineering, also applicability of the reference model is reviewed by case study.
플랜트 FEED 설계를 위한 시스템엔지니어링 기술프로세스 적용방안 연구 - 환경플랜트 사례를 중심으로
기완욱,김준필,홍대근,서석환,Ki, Wan Wook,Kim, Jun Pil,Hong, Dae Geun,Suh, Suk-Hwan 한국시스템엔지니어링학회 2013 시스템엔지니어링학술지 Vol.9 No.2
With rapid growth of the world plant market, an increasing attention is paid on the plant engineering. Up to present time, Korean plant engineering technology has been concerned with the down stream part of the plant engineering, so called EPC, considered as a lower value chain compared with the up stream, composed of FEED(Front End Engineering Design) and PMC(Project Management Consultancy). In other words, a key issue for Korean plant industry is how to catch up the FEED technology, currently occupied by the advanced countries. In this paper, we propose an SE(Systems Engineering) approach, conventionally applied for aerospace and defense industry, to the FEED for plant engineering. Specifically, we proposed a new SE process composed of: 1) SPA matrix for reverse systems engineering, and 2) PPA matrix for forward systems engineering. To illustrate the proposed method, a case study for an environmental plant is performed.
시스템 엔지니어링 접근 방법에 의한 정유 플랜트의 FEED 수행 업무 프로세스 개발
김선영,차재민,김준필,서석환,서활원,Kim, Sun Young,Cha, Jae-Min,Kim, Junpil,Suh, Suk-Hwan,Sur, Hwal Won 한국시스템엔지니어링학회 2014 시스템엔지니어링학술지 Vol.10 No.1
Refinery plant producing petroleum products from crude oil has significantly contributed to the creation of the national interests as a leading engineering industries. However, domestic Engineering Procurement Construction (EPC) companies are facing heavy competition for orders. Domestic EPC companies as EPC contractors are faced with some problems such as undertaking responsibility for FEED packages produced by other FEED companies. But domestic EPC contractors are unfamiliar to development and validation of FEED packages. It causes poor profitability and lower competitiveness of domestic companies. It is necessary for domestic companies to have capability to perform FEED activities in order to overcome these limitations instead of focusing on EPC phase after FEED phase. The systematic procedure is needed to perform the FEED activities, however, there are present difficulties on it due to the lack of experience in FEED packages development which require various engineering knowledge of chemical process, mechanics, electrics, instrumentation, civil engineering. This study has applied systems engineering method which is multi-disciplinary approach to derive and verify the solution to meet the customer's needs when the complex system is developed to task execution process development of FEED activities for refinery plant. The problems that may occur in the future were identified in advance by taking into account the various stakeholders and system context through the application of systems engineering. It helps to develop the task execution process systematically. The developed task execution process of FEED activities is planned to make effectiveness verified by engineering professionals experienced in FEED and continually enhance this process by field application.
동적 환경에서 UWB RTLS의 위치 정확도 모델링 방법론
정수호(Jeong Suho),김준필(Kim Jun pil),서석환(Suh Suk-Hwan) 한국IT서비스학회 2010 한국IT서비스학회 학술대회 논문집 Vol.2010 No.9
유비쿼터스 컴퓨팅 기술을 공장 환경에 접목한 차세대 혁신 공장인 Ubiquitous factory (u-Factory)를 구현하기 위해서는 정보의 투명성 확보가 필수적이다. 이를 위한 기술로써 공장 내 Man, Machine, Material의 위치를 정밀하게 추적할 수 있는 UWB RTLS가 주목 받고 있다. 하지만, RTLS의 운용 중에 물리적 변화가 일어나는 동적 환경은 RTLS의 위치 정확도에 큰 영향을 주며, 이는 산업 현장에서 RTLS 응용 시스템의 신뢰성을 감소시키는 근본적인 원인이 된다. 본 논문에서는 이를 해결하기 위한 시스템 엔지니어링 연구의 일환으로 1) 동적 환경에서 위치 정확도에 영향을 주는 환경 특성 요인을 도출하고, 2) 위치 정확도 모델링 방법론을 제안하며, 3) 시범 공장에서 수행한 모델링 사례로써 방법론의 효용성을 보인다.
정수호(Suho Jeong),서석환(Suk-Hwan Suh),허승민(Seung Min Hur),김준필(Jun pil Kim) (사)한국CDE학회 2011 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2011 No.1
As ubiquitous computing technology is being developed rapidly and applied to diverse domains, new manufacturing paradigm (UbiDMR), which applies ubiquitous technology to the whole product lifecycle encompassing from product design to recycling, is proposed. Since developing ubiquitous systems for UbiDMR is a complex process in which ubiquitous and manufacturing technologies are fused, it is necessary to have a computer-aided tool (CAx) which supports the process systematically and lightens the burden of developers. Although there are many conventional CAx focusing on the analysis of individual technology, the tools have limitations on designing the whole ubiquitous systems. As a means to solve the problem, this paper introduces a CAx for ubiquitous systems, called Computer-Aided Ubiquitous System Engineering (CAUSE), and explains the results of the relevant researches concerning a conceptual framework and RFID/RTLS performance modeling methodologies.
국내 시설원예에서의 암면 사용 현황 및 국내외 재활용 방안 분석
김태욱,홍성철,이병인,장성호,서정민,S. Sivakumar,박제성,김기범,김준필,정은상 한국폐기물자원순환학회 2023 한국폐기물자원순환학회지 Vol.40 No.5
The agricultural sector faces numerous challenges, including extreme climate change, rural aging, decreasing labor force and farmland, and rising labor costs. In response, the Korean government has introduced policies to support young farmers. One noteworthy solution for enhancing crop production and optimizing farm management while reducing labor needs is hydroponic cultivation (or smart farming). In hydroponic greenhouses, rock wool is crucial in ensuring high crop yield and superior product quality. Globally recognized for its outstanding physical properties, rock wool excels in water retention. Yet, in Korea, recycling restrictions on post-harvest waste rock wool deter many from choosing it over other solid media. According to domestic regulations, rock wool is classified as general waste, prohibiting its direct landfilling or recycling. As a result, the agricultural usage of rock wool in Korea is limited due to the recycling restrictions, especially when compared to organic media. This research set out to investigate and comprehend the application of rock wool in facility-based horticultural farming, referencing both Korean practices and those abroad. The study explored the treatment of waste rock wool in foreign agricultural sectors. Furthermore, this research proposes feasible methods for processing waste rock wool and potential recycling strategies.