PERFORMANCE ASSESSMENT OF SOLAR THERMAL HEAT STORAGE

Milena Mančić, Miomir Raos, Milena Medenica, Milan Protić, Marjan Popović, Marko Mančić

DOI Number
https://doi.org/10.22190/FUWLEP240410007M
First page
077
Last page
086

Abstract


Over the past thirty years, there has been a notable increase in electricity usage within the residential sector of Europe. Final energy consumption in the EU residential sector has risen by 26.3%, with heating systems/electric boilers accounting for a substantial portion at 19.1% of final energy usage. Additionally, the combined utilization of solar energy for heating and cooling presents an opportunity to elevate solar thermal energy from primarily providing domestic hot water to becoming a major energy source for buildings, complete with hot water storage buffers. This study presents a model of a solar thermal system with heat storage, simulated using TRNSYS software, based on typical meteorological conditions in Nis, Serbia. The system is designed for heating domestic hot water, and scenario analysis is conducted to assess the advantages of solar thermal applications compared to electric hot water heaters. The findings suggest significant savings in electricity usage and costs are possible, although careful consideration is needed when sizing solar thermal systems to prevent stagnation during the summer months.


Keywords

heat storage, solar thermal, household energy balance

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DOI: https://doi.org/10.22190/FUWLEP240410007M

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