ScholarWorks@숙명여자대학교

초록

This study proposes an integrated operation model for a microthermal grid that combines building and greenhouse demands near existing district heating networks. Unlike previous studies that have focused on urban buildings, the present study addresses rural communities with greenhouse loads, which are characterized by high seasonal variability. The simulation results indicate that seasonal thermal energy storage combined with solar heat can reduce primary energy consumption by up to 48%, depending on the solar collector area. Furthermore, integration of district heating return water-based heat pumps provides an additional 5–8% reduction, demonstrating the potential of the model as a low-carbon alternative for rural energy systems. The findings highlight the technical feasibility and policy relevance of interconnected thermal grids in rural areas.

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