Karšto vandens tiekimo decentralizavimo techninių ir ekonominių rodiklių analizė

Abstract

Decentralization of hot water supply started several years ago by removal of hot water preparing stations, used for hot water supply to the group of buildings throw hot water pipelines. On the basis of technical and consumption data, accumulated in Vilnius DH company it was possible to make more realistic estimation of the modernization effect to both: consumers and DH company. Mathematical models used in the analysis allowed resuming changes in heat consumption and network losses, evaluating actual hot water and heat consumption data. The results of analysis allowed making unambiguous conclusion that implementation of modernization project reduced heat losses and power needs of DH company. Due to automatic control, heat consumption in different buildings became more uniform. Investment into the new substations for each building made by DH company repays less than in two years due to avoided heat and hot water distribution costs.