S I Khamraev, U Kh Ibragimov and B I Kamolov

Karshi Engineering Economics Institute, Karshi, 180100, Uzbekistan

Abstract

This paper presents the results of an experimental study of the hydrodynamic process of a solar collector water-heated floor system. The water-heated floor system is designed to heat living rooms. Based on the analysis of the structures of the hot water floor, methods of their installation and the methodology of hydrodynamic calculation of the hot floor, experimental studies were conducted on the total pressure loss in the pipes of the hot water floor and the pump power used to transfer hot water from the pipes. Experimental studies were carried out in laminar and turbulent flow regimes at different diameters and different positioning steps of the water-heated floor pipe. The results of the hydrodynamic process study showed that the pressure drop and pump power were the highest at the pipe diameter and pipe pitch of 12 mm and 100 mm, i.e. 8 kPa and 18.5 W in the laminar mode and 14 kPa and 210 W in the turbulent mode. . Results obtained as the pressure loss and the power consumption of the pump decrease with increasing pipe diameter and positioning pitch Δ𝑃 = 𝑓(𝑅𝑒) and 𝑁 = 𝑓(𝑅𝑒) presented in the form of a dependency graph.