Efficiency of Extended Temperature Schedules for Regulation of Heating Networks with Different Shares of Hot Water Supply Load

The aim of this work is to study the efficiency of extended temperature schedules for regulating heat supply systems in a wide range of changes in the share of the HWS load. To achieve this aim, the following tasks were solved: initial and extended temperature schedules were calculated and con-structed; calculations of the operating modes of a model CHPP were performed and its energy effi-ciency indicators were determined for both the initial and extended temperature schedules; an analy-sis of the identified dependencies was performed both in a degree-by-degree representation and inte-grally for the entire heating period. The most significant results of the work are the following: for all variants of the calculated parameters, the specific electricity generation with extended schedules is higher than with the initial ones; for any share of the HWS load, the use of extended regulation schedules reduces the specific consumption of equivalent fuel for electricity supply by approximately 1% compared to the initial schedules; the best result for any share of the DHS load is the use of a reduced temperature schedule with a design temperature of delivery water of 110℃. The calculations carried out confirm that for any share of the DHS load, the transition to extended temperature schedules ensures a significant increase in the efficiency of the heat supply system. The significance of the results of the work lies in their applicability for setting and solving problems of ensuring max-imum energy efficiency of heat supply systems based on CHPPs.