Influence of pipeline heat loss on thermal conditions of direct connected hot water heat-supply system

Analyses the thermal characteristics of heat source and heat consumer, and presents the pipe temperature drop expression and matrix equations of thermal condition calculation model based on the graph theory. By the model, studies the thermal condition of system operated in design flow rate condition with different heat insulation performences, and analyses the influence of heat insulation effect on heat supply quality of heat consumer. The results show that more severe thermal disorder results from poor heat insulation effect. Considering the characteristics of thermal disorder, presents the integrative flow regulation method.