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.

122 practice, flat PCM packs are hung like curtains or attached to walls; in animal facilities, protected casings with air circulation prevent damage by livestock [4]. Fig.1 [5] Example of PCM module placement on the interior wall of a solar greenhouse. Reflective packets filled with PCM (paraffin-based mixture) absorb solar heat during the day and reduce heat loss through the wall at night, thereby increasing nighttime air temperature. Benefits of Paraffin-Based PCM Systems in Agriculture:  Passive and autonomous operation: No electronics or active control required. Thermal regulation occurs automatically through phase change.  Energy efficiency: Free solar heat or surplus energy is stored and reused at night, reducing fuel or electricity demand.  Improved thermal comfort: PCMs buffer daily temperature extremes, enhancing plant growth and animal health.  Safety and environmental friendliness: Paraffin is inert, non-toxic, and stable across many thermal cycles. It does not emit harmful substances and is recyclable.  No pressure hazards: Unlike water-based systems, paraffin expands slightly and can be safely sealed in lightweight containers.