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Received January 15, 2018
Accepted February 27, 2018
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디젤탈황 단위공정의 CFD 모델링을 포함한 연료전지 시스템 공정설계 및 최적화
Process Simulation and Optimization of Fuel Cell System including CFD Modeling of Diesel Desulfurizer Unit Process
부경대학교 화학공학과, 48547 부산광역시 남구 신선로 365
Department of Chemical Engineering, Pukyong National University, 365, Sinseon-ro, Nam-gu, Busan, 48547, Korea
dj-im@pknu.ac.kr
Korean Chemical Engineering Research, June 2018, 56(3), 421-429(9), 10.9713/kcer.2018.56.3.421 Epub 4 June 2018
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Abstract
본 연구에서는 100 kW급 연료전지 시스템의 운영을 위한 공정 및 CFD 모델링을 진행하였다. 공정 모델링을 통해 연료전지 각 단위 공정에 유입되는 유량을 도출하였으며 수소로 전환되지 않는 디젤의 환류량을 도출하였다. 디젤의 환류를 고려한 새로운 유입 유량 조건을 이용해 CFD 해석을 진행한 결과, 환류 디젤이 없는 것으로 가정한 이전 연구 결과에 비해 더 짧은 유입시간과 비슷한 시간의 처리시간을 가지는 이점이 있음을 확인하였다. 6기의 탈황 반응기를 이용해 100 kW급 연료전지를 가동시키는데 필요한 TSA 탈황 시스템 구성을 완료하였으며 전체 TSA 공정 운영을 위한 운용 방안을 도출하였다. 반응기 사이의 열 전달 해석을 통해 저온의 탈황공정과 고온의 재생공정 간의 열 간섭이 크지 않음을 확인하였다. 본 연구결과는 연료전지 시스템의 효율화에 기여할 것이며, 도출된 탈황모듈의 설계는 연료 전지 시스템뿐만 아니라 청정 석유화학산업의 기초가 될 것으로 기대된다.
We performed process and CFD simulations of a 100 kW fuel cell system. By process simulation, we derived the input flow rate of each unit process and the recycle diesel flow rate. Through CFD simulation considering the recycle diesel flow, more efficient operational condition was found. Using 6 desulfurize reactors, a TSA process for a 100 kW fuel cell system was successfully constructed. Heat interference between reactors was found to be negligible. These results will contribute to increasing the efficiency of fuel cell system and the developed desulfurizing module design will contribute to the clean petrochemical technology as well as fuel cell systems.
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Permatasari A, Fasahati P, Ryu JH, Liu JJ, Korean J. Chem. Eng., 33(12), 3381 (2016)
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Cutillo A, Specchia S, Antonini M, Saracco G, Specchia V, J. Power Sources, 154(2), 379 (2006)
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Lei M, Vallieres C, Grevillot G, Latifi MA, Ind. Eng. Chem. Res., 52(22), 7526 (2013)
