Thermodynamic analysis and assessment of an integrated hydrogen fuel cell system for ships |
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| Affiliation: | 1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daehak-ro 291, Daejeon, Yuseong-gu, 34141, Republic of Korea;2. Plant Engineering Center, Institute for Advanced Engineering, 175-28, Goan-ro 51 Beon-gil, Baegam-myeon, Cheoin-gu, Yongin, Gyeonggi-do, 17180, Republic of Korea;3. Environment and Energy Systems Research Division, Korea Institute of Machinery and Materials, Gajeongbuk-ro 156, Daejeon, Yuseong-gu, 34103, Republic of Korea;4. Hyundai Heavy Industries, 17-10, Mabuk-ro 240, Giheung-gu, Yongin, Gyeonggi-do, 16891, Republic of Korea;5. Copenhagen School of Marine Engineering and Technology Management, Solvænget 5, Hundested, 3390, Denmark;1. Department of Electro-Optical and Energy Engineering, MingDao University, Taiwan;2. Materials and Electro-Optics Research Division, Chung-Shan Institute of Science and Technology, Taiwan;1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daehak-ro 291, Yuseong-gu, Daejeon 34141, Republic of Korea;2. Plant Engineering Center, Institute for Advanced Engineering, 175-28, Goan-ro 51 Beon-gil, Baegam-myeon, Cheoin-gu, Yongin, Gyeonggi-do 449-863, Republic of Korea;1. Fluid Structure Interactions Group, University of Southampton, Boldrewood Innovation Campus, SO16 7QF, UK;2. Naval Architecture and Marine Engineering Department, Faculty of Engineering, Port Said University, Port Fouad, Egypt;3. National Oceanography Centre, Natural Environment Research Council, UK;1. Korea Institute of Machinery & Materials (KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 34103, South Korea;2. Korea Shipbuilding and Offshore Engineering (KSOE), 75 Yulgok-ro, Jongno-gu, Seoul 03058, South Korea;3. University of Science and Technology (UST), KIMM Campus, 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 34103, South Korea |
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| Abstract: | In this thermodynamic investigation, an integrated energy system based on hydrogen fuel is developed and studied energetically and exergetically. The liquefied hydrogen fueled solid oxide fuel cell (SOFC) based system is then integrated with a steam producing cycle to supply electricity and potable water to ships. The first heat recovery system, after the fuel cells provide thrust for the ship, is by means of a turbine while the second heat recovery system drives the ship's refrigeration cycle. This study includes energy and exergy performance evaluations of SOFC, refrigeration cycle and ship thrust engine systems. Furthermore, the effectiveness of SOFCs and a hydrogen fueled engine in reducing greenhouse gas emissions are assessed parametrically through a case study. The main propulsion, power generation from the solid oxide fuel cells, absorption chiller, and steam bottoming cycle systems together have the overall energy and exergy efficiencies of 41.53% and 37.13%, respectively. |
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| Keywords: | Hydrogen Solid oxide fuel cell Ship Integrated system Exergy Energy efficiency |
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