Analysis of Thermal Loads and Specific Consumption of Thermal Energy in Apartment Buildings

An analysis of the contractual loads of heat-consumption objects connected to one of the boiler houses of the Fuel and Energy Complex of St. Petersburg is presented. The analysis was carried out on the basis of the results of processing the readings of heat-metering devices installed at the subscriber inputs of apartment buildings located on the territory of St. Petersburg. The analysis was carried out of the consumption of heat energy for heating during the heating period of 2018/2019, and a comparison was made of the calculated and contractual loads of heat-consumption objects located in the area of operation of the considered source of heat energy. Change in the specific indicators of thermal energy in apartment buildings for heating depending on the series/types of buildings, their number of stories (taking into account the number of entrances), construction periods, and their heated area is shown. Examples of determining the calculated heat load for heating- and hot-water supply of heat-consumption objects according to the data array of general house heat meters, including within the schedule for regulating the supply of heat at the source. The coefficients showing the ratio of the calculated heat load of heat consumption subscribers to the contractual load were obtained. The reserve of thermal power for existing consumers of thermal energy and the source to which these consumers are connected has been identified. The average value of the coefficient, which is the ratio of the calculated heat load for heating to the contractual one, is 0.66, the averaged value of the coefficient, which is the ratio of the calculated heat load for hot-water supply to the contractual one, is 0.82.