한국해양대학교

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LNG 운반선의 3,500kW급 고체산화물형 연료전지 System 성능평가 시뮬레이션

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dc.contributor.author 김시원 -
dc.date.accessioned 2017-02-22T02:23:31Z -
dc.date.available 2017-02-22T02:23:31Z -
dc.date.issued 2016 -
dc.date.submitted 2016-03-12 -
dc.identifier.uri http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002237038 ko_KR
dc.identifier.uri http://repository.kmou.ac.kr/handle/2014.oak/8324 -
dc.description.abstract Recently, regulations of air pollution are enhanced such as carbon dioxide, nitrogen oxide, sulfur oxide generated during operation vessel. According to the flow and the movement of using the fuel of the vessel to the LNG it is going active, which is evaluated for use as an alternative to traditional petroleum-based fuel that can be absorbed without a shock. Fuel cell are highlighted that high efficient, less air-pollution. It can be directly converted to the chemical energy into electrical energy through a oxidation-reduction reaction. Solid Oxide Fuel Cell(SOFC) system can be used H2 by reforming CH4 and made combined cycle with SOFC and Gas turbine designed to take advantage of the features. The objective is to evaluate by source Program named ‘Thermolib’ for simulation for the performance of Methane fueled SOFC with Gas Turbine(GT) system that adopted for 177K LNGC utilized by Ship’s Load analysis which is assumed to 3,500kW. It were designed Ship’s propulsion load power that is controlled by DF Diesel Engine’s governor and Ship’s base-load power is controlled by SOFC Hybrid System while applying. Fuel are supplied as both BOG(Boiled Off Gas) and Forcing generated gas to SOFC system. This system is analyzed that supplied Fuel, O2, BOP (Ballance of Plant) power consumption, characteristic of system temperature, stack's power and efficiency at this time. I was able to maintain system balance of 3,500kW SOFC Hybrid system by changing the flow condition of Fuel, Water, Air. Through the evaluation, found that system's efficiency which are variable depend on operation condition as follows -
dc.description.abstract SOFC 54.09% / Hybrid System 65.31% to 65.46%. -
dc.description.abstract SOFC 54.09% / Hybrid System 65.0%. In addition, can organize Hybrid system that make the best use of DFDE's Exh. Gas heat energy for additional heat source. Through the evaluation, found that system's efficiency which are variable depend on operation condition as follows -
dc.description.tableofcontents 목 차 List of Tables List of Figures Abstract 사용기호 제 1 장 서론 1 1.1 연구 배경 1 1.2 연구 목적 4 1.3 연구 범위 6 제 2 장 연료전지 및 고체산화물 연료전지의 원리 9 2.1 연료전지 원리 9 2.2 연료전지 셀 전압과 개방회로 전압 11 2.3 SOFC(고체산화물전지)의 작동 원리 및 구성 14 2.3.1 SOFC의 작동 원리 14 2.3.2 SOFC의 구성요소 16 2.3.2.1 전해질 16 2.3.2.2 연료극 16 2.3.2.3 공기극 17 2.3.3 SOFC System 18 제 3 장 SOFC Hybrid System 21 3.1 DFDE System 21 3.2 DFDE + SOFC + Gas Turbine System 22 3.2.1 필요 전력 22 3.2.2 연료 공급 System 26 제 4 장 SOFC 분석 및 Hybrid System 구성 28 4.1. SOFC Stack Modeling 28 4.2. SOFC Modeling 분석 32 4.2.1 Cathode Air 유량 영향 35 4.2.2 Cathode, Anode 온도 영향 36 4.2.3 Anode Fuel 유량 영향 37 4.2.4 Anode CH4, H2O 비율 영향 38 4.2.5 Cell 개수의 영향 39 4.2.6 수소 변환율의 영향 40 4.2.7 Cell 반응 면적의 영향 41 4.2.8 Modeling 분석 결과 42 4.2.9 System 적용 43 4.3 연료전지 BOP에 대한 Modeling 및 분석 44 4.3.1 Burner 44 4.3.1.1 Modeling 44 4.3.1.2 계산 조건 및 분석 45 4.3.1.3 System 적용 46 4.3.2 Turbine 47 4.3.2.1 Modeling 47 4.3.2.2 계산 조건 및 분석 48 4.3.2.3 System 적용 50 4.3.3 Air Compressor 51 4.3.3.1 Modeling 52 4.3.3.2 계산 조건 및 분석 53 4.3.3.3 System 적용 54 4.3.4 Fuel Compressor 55 4.3.4.1 Modeling 56 4.3.4.2 계산 조건 및 분석 57 4.3.4.3 System 적용 58 4.3.5 Water Pump 59 4.3.5.1 Modeling 60 4.3.5.2 계산 조건 및 분석 61 4.3.5.3 System 적용 62 4.3.6 Heat Exchanger 63 4.3.6.1 Modeling 63 4.3.6.2 계산 조건 및 분석 64 4.3.6.3 System 적용 65 4.3.7 3-Way Valve 66 4.3.7.1 Modeling 66 4.3.7.2 계산 조건 및 분석 67 4.3.7.3 System 적용 68 4.4 3,500kW급 SOFC + G/T Hybrid System Modeling 및 분석 69 4.4.1 System 구성 69 4.4.2 BOP System 분석 71 4.4.2.1 Fuel Compressor의 유량변화에 따른 영향 - I 73 4.4.2.2 Fuel Compressor의 유량변화에 따른 영향 - II 77 4.4.2.3 Water Pump의 유량변화에 따른 영향 80 4.4.2.4 Air Compressor의 유량변화에 따른 영향 83 4.4.2.5 BOP System Balance 86 4.4.2.6 3-Way Valve 조절 88 4.4.3 System Balance 결과 91 4.4.3.1 Air Compressor 입·출력 데이터 93 4.4.3.2 Fuel Compressor 입·출력 데이터 93 4.4.3.3 Water Pump 입·출력 데이터 94 4.4.3.4 연료전지 입·출력 데이터 95 4.4.3.5 Burner 입·출력 데이터 96 4.4.3.6 Turbine 입·출력 데이터 97 4.4.3.7 계산 결과 98 4.5 DFDE의 배기가스를 활용한 System Modeling 및 분석 100 4.5.1 System 구성 100 4.5.2 Modeling 결과 103 4.5.3 System Balance 107 제 5 장 결론 109 참고문헌 -
dc.language kor -
dc.publisher 한국해양대학교 대학원 -
dc.title LNG 운반선의 3,500kW급 고체산화물형 연료전지 System 성능평가 시뮬레이션 -
dc.title.alternative Performance Analysis of 3,5kW Solid-Oxide Fuel Cell -
dc.type Thesis -
dc.date.awarded 2016-02 -
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