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首页> 外文期刊>JSME International Journal. Series B, Fluids and Thermal Engineering >Cycle Analysis of Micro Gas Turbine-Molten Carbonate Fuel Cell Hybrid System
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Cycle Analysis of Micro Gas Turbine-Molten Carbonate Fuel Cell Hybrid System

机译:微型燃气轮机熔融碳酸盐燃料电池混合系统的循环分析

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摘要

A hybrid system based on a micro gas turbine (μGT) and a high-temperature fuel cell, i.e., molten carbonate fuel cell (MCFC) or solid oxide fuel cell (SOFC), is expected to achieve a much higher efficiency than conventional distributed power generation systems. In this study, a cycle analysis method and the performance evaluation of a μGT-MCFC hybrid system, of which the power output is 30 kW, are investigated to clarify its feasibility. We developed a general design strategy in which a low fuel input to a combustor and higher MCFC operating temperature result in a high power generation efficiency. A high recuperator temperature effectiveness and a moderate steam-carbon ratio are the requirements for obtaining a high material strength in a turbine. In addition, by employing a combustor for complete oxidation of MCFC effluents without additional fuel input, i.e., a catalytic combustor, the power generation efficiency of a μGT-MCFC is achieved at over 60% (LHV).
机译:基于微型燃气轮机(μGT)和高温燃料电池的混合系统,即熔融碳酸盐燃料电池(MCFC)或固体氧化物燃料电池(SOFC),有望实现比传统分布式电源更高的效率发电系统。在这项研究中,研究了功率输出为30 kW的μGT-MCFC混合系统的循环分析方法和性能评估,以阐明其可行性。我们制定了一种通用的设计策略,在该策略中,燃烧室的低燃料输入和较高的MCFC工作温度可提高发电效率。为了在涡轮机中获得高的材料强度,需要较高的换热器温度效率和适度的蒸汽碳比。另外,通过使用燃烧器来完全氧化MCFC流出物而无需额外的燃料输入,即催化燃烧器,μGT-MCFC的发电效率达到了超过60%(LHV)。

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