공공수영장 열공급을 위한 연료전지 배열활용 사업의 실증 운영성과 분석

초록

This study evaluates a 4.2 MW solid oxide fuel cell (SOFC)-based waste heat supply system for a public swimming pool in Bukpyeong, Donghae, Korea. Design-stage feasibility results and operating data from 2024 to 2025 were analyzed to compare predicted and actual performance. The design-stage analysis estimated 1,853.6 MWh of annual recoverable waste heat against an annual heating demand of 746.53 MWh. Actual operation achieved annual energy- cost savings of KRW 141.6 million in 2024 and KRW 148.1 million in 2025. Although heat supply was maintained, system utilization declined because of equipment degradation, increased balance-of-plant (BOP) maintenance, field replaceable unit (FRU) replacement needs, and corrective maintenance following system trips. The results confirm the suitability of public swimming pools for fuel-cell waste heat utilization and emphasize the importance of equipment reliability and preventive maintenance.

키워드