Proceedings of the International scientific and practical conference ―Multidisciplinary approaches in science, technology and culture‖ (September 5-7, 2025) / Publisher website: www.naukainfo.com. – Oxford, United Kingdom, 2025. - 124 p.

121 recommended [3]. Despite limitations, such PCM modules can significantly reduce nighttime heat loss in agricultural environments. APPLICATION OF PARAFFIN-BASED THERMAL ACCUMULATORS IN GREENHOUSES AND LIVESTOCK BUILDINGS The practical implementation of phase change thermal storage systems in agriculture can vary widely depending on the facility type and thermal needs. Greenhouses: Paraffin-based PCM modules can be installed along the sunlit southern walls or perimeter, using dark-colored tubes or panels to enhance solar absorption. During the day, the sun heats the modules, melting the paraffin; at night, the stored heat is released back into the greenhouse. Modules may also be suspended under the roof or embedded in the soil near plant roots [2, 3]. Hybrid systems combining water barrels and paraffin capsules offer both sensible and latent heat storage. Poultry and Pig Houses: In animal housing, where indoor temperatures are maintained above 0 °C (15– 25 °C for young animals), PCMs can buffer daily fluctuations. Paraffin units can be mounted under the ceiling or in upper wall zones to absorb daytime heat and passively release it overnight. For piglets, underfloor modules provide localized nighttime heating. However, for these conditions, PCMs with lower melting points (25–30 °C) are more suitable. Paraffin T3 (melting at ~50 °C) may require supplemental heating via solar collectors or electric heaters during the day [2, 3]. Grain Storage and Agricultural Warehouses: Paraffin modules installed under the roof can mitigate daytime overheating and nighttime overcooling, stabilizing temperature and humidity for stored produce. This helps reduce energy use for ventilation or heating [3, 4]. Design considerations: PCM form factors may include tubes, panels, pouches, or pellets. The larger the heat exchange surface, the more efficient the charging/discharging process. In