Volodymyr D. Autonomous Heat Supply Systems with Deep Heat Utilization of Boilers Disposal Gas

Thesis deals with the current task of manufacturing and research of energy efficient autonomous heat supply systems with deep heat utilization of disposal gases from boilers at private economy-class buildings, small greenhouse farming and enterprises. The expediency of recuperative film heat utilizers was proved. It is analytically proved that welded film ducts for a heat carrier have digonal shape. For viscous flow in digonal duct the velocity and temperature profiles, the hydraulic resistance (Darcy) coefficient and the limiting Nusselt number are determined. Heat transfer and pressure loss in the heat exchanger with polymer digonal channels are experimentally studied. Autonomous heating systems with single- and two-stage heat utilization of boilers disposal gases are proposed. Series and engineering calculation recommendations of film heat utilizers are proposed. A feasibility study of the proposed solutions was performed.