Development and Field Test Results of Residential SOFC CHP System

Suzuki, Minoru; Iwata, Shin; Higaki, Katsuki; Inoue, Shuich; Shigehisa, Takashi; Miyachi, Itaru; Nakabayashi, Hidenori; Shimazu, Kenji

doi:10.1149/1.3205519

Cited by 28 publications

(10 citation statements)

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“…As SOFC fuel cells are one of the most popular types of fuel cells, there have been many studies and publications on combining these fuel cells into systems for the simultaneous generation of electricity and heat. Basic information on such systems can be found in [215][216][217][218][219][220].…”

Section: Fuel Cellsmentioning

confidence: 99%

Modern Small and Microcogeneration Systems—A Review

2021

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Small and micro energy sources are becoming increasingly important in the current environmental conditions. Especially, the production of electricity and heat in so-called cogeneration systems allows for significant primary energy savings thanks to their high generation efficiency (up to 90%). This article provides an overview of the currently used and developed technologies applied in small and micro cogeneration systems i.e., Stirling engines, gas and steam microturbines, various types of volumetric expanders (vane, lobe, screw, piston, Wankel, gerotor) and fuel cells. Their basic features, power ranges and examples of implemented installations based on these technologies are presented in this paper.

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Section: Fuel Cellsmentioning

confidence: 99%

Modern Small and Microcogeneration Systems—A Review

2021

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“…ENE-FARM type S, the residential solid oxide fuel cell (SOFC) CHP system, is an excellent system for building a sustainable low-carbon society. [1][2][3][4][5] As shown in Fig. 1, (d) ENE-FARM type S consists of (a) flat-tube type SOFC cells connected physically and electrically in series by (b) coated interconnector to form a (c) SOFC stack.…”

Section: Introductionmentioning

confidence: 99%

Interface Design Development for High Durability of SOFC Interconnectors Using Electrodeposition Coating

Nakao¹,

Saito²,

Nishimura³

et al. 2023

ECS Trans.

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Solid Oxide fuel cell (SOFC) mounted in ENE-FARM type S has been commercialized since 2012. For further market expansion of ENE-FARM type, higher efficiency, higher durability, and lower cost of SOFC stacks are required. A key technology to advance its performance is a coating on SOFC metallic interconnector for the long-term durability of SOFC stacks. We achieved significant reduction in resistance and improved durability by improving the highly mass producible electrodeposition coating method. In this research, the coating technology of the SOFC interconnector has been developed. Long-term durability was confirmed through high-temperature acceleration evaluation, and the electrodeposition coating on the SOFC interconnector was installed in the ENE-FARM type S.

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“…By improving cell performance and durability, we have reduced the number of cells and achieved compactness during model changes from (a) 2012 to (b) 2016 and (c) 2020 (Figure 1). [1][2][3][4] The SOFC stack was manufactured by Kyocera, composed of a flat-tube type cell and comb-shaped stainless steel with a two-row cell stack that is physically and electrically connected in series by the SOFC interconnector (Figure 2). We have been working on improving the power generation efficiency, reducing costs, and making them more compact by considering that market expansion and cost reduction are critical for the continued market spread of ENE-FARM type S. However, there is a trade-off between cost reduction and performance improvement and issues related to achieving both have emerged during the development process.…”

Section: Introductionmentioning

confidence: 99%