Optimal sizing of residential SOFC cogeneration system for power interchange operation in housing complex from energy-saving viewpoint

Tetsuya Wakui and Ryohei Yokoyama

Energy, 2012, vol. 41, issue 1, 65-74

Abstract: A power interchange operation, in which electric power generated by multiple residential solid oxide fuel cell cogeneration systems (R-FCGSs) is shared among residences in a housing complex with no reverse power flow to a commercial electric power system, has a high energy-saving effect as compared with a stand-alone operation of individual systems. To further improve its energy-saving effect, the optimal sizing of the R-FCGS for this power interchange operation is discussed from the energy-saving viewpoint by conducting optimal operational planning based on mixed-integer linear programming. The energy-saving effect of the power interchange operation is analyzed for 14 different scales of the R-FCGSs with the rated electric power output ranging from 0.2 to 1.5 kW per 0.1 kW. The analysis for a housing complex with 20 residences located in Japan reveals that the power interchange operation has an advantage over the stand-alone operation in terms of energy saving for any scale of the R-FCGS investigated in this study. Furthermore, it is found that the 0.6-kW R-FCGS is the optimal scale for the power interchange operation in terms of the energy saving and saves the annual primary energy consumption of 17% as compared with the conventional energy supply with no R-FCGS.

Keywords: Cogeneration; Solid oxide fuel cell; Power interchange; Optimal sizing; Optimization; Energy saving (search for similar items in EconPapers)
Date: 2012
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (19)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:41:y:2012:i:1:p:65-74

DOI: 10.1016/j.energy.2011.06.056

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