Abstract
Russia belongs to the countries with a harsh climate: cold winters and hot summers are typical for many regions. In this regard, an urgent actual problem is the seasonal accumulation of thermal energy in the summer for the winter period and the cold of winter for the summer period. The main task of this work is the research, design and creation of an underground accumulator for implementation in the existing heat supply system. There are two types of seasonal accumulator: thermal energy storage accumulator with an elevated temperature up to 60 ÷ 70 ℃ and an ice accumulator with energy storage at a temperature of 0 ÷ 30 ℃ in the liquid water phase and in the ice phase. A ready-made design solution has been developed for the introduction of two types of storage into the existing heat supply system of an energy- efficient house. The calculation of the accumulating capacity of the storages has been made. A test bench layout has been developed. The scheme of the test bench has been developed for accumulator.