DETERMINATION OF FLOW VELOCITY UNDER FREE CIRCULATION OF HEAT CARRIER IN SOLAR WATER HEATING SYSTEMS

• Дата: 2025
• Автори та афіліації: V. Golovko — National Technical University of Ukraine «Ihor Sikorsky Kyiv Polytechnic Institute»; Kyiv, Ukraine. Institute of Renewable Energy NAS Ukraine, Kyiv, Ukraine; V. Volodarskyi — Institute of Renewable Energy NAS Ukraine, Kyiv, Ukraine
• Ключові слова: keywords
• Автори: Golovko , V., Volodarskyi , V.
• Формат: Стаття
• Мова: Українська
• Опубліковано: Institute of Renewable Energy National Academy of Sciences of Ukraine 2025
• Теми: renewable energy sources; solar radiation energy; natural circulation; solar water heater; flow rate; temperature head.
• Онлайн доступ: https://ve.org.ua/index.php/journal/article/view/553
• Назва журналу: Vidnovluvana energetika

An analytical model for the flow of heat carrier in natural-circulation (thermosiphon) solar water heaters is presented. A differential equation for the flow velocity   is derived, accounting for the gravitational driving head due to density differences between hot and cold...