Study of thermal properties in an annular heat pipe

Based on the results of research conducted on the annular heat pipe, this article analyzes the processes of heat and mass exchange occurring within it, as well as its economic and environmental indicators. The research findings indicate that the efficiency of the annular heat pipe ranges from 25% to 32%, depending on environmental conditions. The payback period of the equipment varies between 2.5 and 8 years, while the annual reduction of harmful gas emissions into the atmosphere is estimated at 111 kg. When the proposed heat pipe is installed on building walls, the heat transfer coefficient of the walls can increase by up to 3.2 times, depending on the level of thermal insulation.