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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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- 학위논문
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- 2016
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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; 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; SOFC 54.09% / Hybrid System 65.31% to 65.46%.
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; 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; SOFC 54.09% / Hybrid System 65.31% to 65.46%.
목차
목 차List of TablesList of FiguresAbstract사용기호제 1 장 서론 11.1 연구 배경 11.2 연구 목적 41.3 연구 범위 6제 2 장 연료전지 및 고체산화물 연료전지의 원리 92.1 연료전지 원리 92.2 연료전지 셀 전압과 개방회로 전압 112.3 SOFC(고체산화물전지)의 작동 원리 및 구성 142.3.1 SOFC의 작동 원리 142.3.2 SOFC의 구성요소 162.3.2.1 전해질 162.3.2.2 연료극 162.3.2.3 공기극 172.3.3 SOFC System 18제 3 장 SOFC Hybrid System 213.1 DFDE System 213.2 DFDE + SOFC + Gas Turbine System 223.2.1 필요 전력 223.2.2 연료 공급 System 26제 4 장 SOFC 분석 및 Hybrid System 구성 284.1. SOFC Stack Modeling 284.2. SOFC Modeling 분석 324.2.1 Cathode Air 유량 영향 354.2.2 Cathode, Anode 온도 영향 364.2.3 Anode Fuel 유량 영향 374.2.4 Anode CH4, H2O 비율 영향 384.2.5 Cell 개수의 영향 394.2.6 수소 변환율의 영향 404.2.7 Cell 반응 면적의 영향 414.2.8 Modeling 분석 결과 424.2.9 System 적용 434.3 연료전지 BOP에 대한 Modeling 및 분석 444.3.1 Burner 444.3.1.1 Modeling 444.3.1.2 계산 조건 및 분석 454.3.1.3 System 적용 464.3.2 Turbine 474.3.2.1 Modeling 474.3.2.2 계산 조건 및 분석 484.3.2.3 System 적용 504.3.3 Air Compressor 514.3.3.1 Modeling 524.3.3.2 계산 조건 및 분석 534.3.3.3 System 적용 544.3.4 Fuel Compressor 554.3.4.1 Modeling 564.3.4.2 계산 조건 및 분석 574.3.4.3 System 적용 584.3.5 Water Pump 594.3.5.1 Modeling 604.3.5.2 계산 조건 및 분석 614.3.5.3 System 적용 624.3.6 Heat Exchanger 634.3.6.1 Modeling 634.3.6.2 계산 조건 및 분석 644.3.6.3 System 적용 654.3.7 3-Way Valve 664.3.7.1 Modeling 664.3.7.2 계산 조건 및 분석 674.3.7.3 System 적용 684.4 3,500kW급 SOFC + G/T Hybrid System Modeling 및 분석 694.4.1 System 구성 694.4.2 BOP System 분석 714.4.2.1 Fuel Compressor의 유량변화에 따른 영향 - I 734.4.2.2 Fuel Compressor의 유량변화에 따른 영향 - II 774.4.2.3 Water Pump의 유량변화에 따른 영향 804.4.2.4 Air Compressor의 유량변화에 따른 영향 834.4.2.5 BOP System Balance 864.4.2.6 3-Way Valve 조절 884.4.3 System Balance 결과 914.4.3.1 Air Compressor 입·출력 데이터 934.4.3.2 Fuel Compressor 입·출력 데이터 934.4.3.3 Water Pump 입·출력 데이터 944.4.3.4 연료전지 입·출력 데이터 954.4.3.5 Burner 입·출력 데이터 964.4.3.6 Turbine 입·출력 데이터 974.4.3.7 계산 결과 984.5 DFDE의 배기가스를 활용한 System Modeling 및 분석 1004.5.1 System 구성 1004.5.2 Modeling 결과 1034.5.3 System Balance 107제 5 장 결론 109참고문헌
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