Low-Temperature, Low-Metal Consumptıon Thermosıphone Heatıng Devıce wıth Intermedıate Heat Carrıer for Solar Heatıng Systems

Abstract

This study focuses on the development of a low-temperature, low-metal consumption self-regulating thermosiphon heating device with an intermediate heat carrier for solar heating systems aimed at improving energy efficiency and reducing material consumption. The research involves analysis of modern heating device designs, theoretical and experimental investigation of single- and two-phase heat exchange processes, and the development of mathematical models describing evaporation and condensation under natural thermosiphon circulation conditions. The proposed design consists of a hermetic housing divided into evaporation and condensation chambers equipped with steam confusors, ejectors, and a thermoregulating valve, which intensify heat transfer by increasing steam velocity and enhancing mixing in the condensation zone. Hydraulic separation from the main heating system reduces internal pressure and wall thickness, lowering metal consumption while maintaining structural reliability. The results show that the developed device improves heat transfer efficiency and enables 3–4% heat savings through self-regulation, making it suitable for application in solar heating systems and modern energy-saving technologies.