' Heat storage (heat storage heater)' is a heater operating on a 220V or 380V mains (depending on power consumption), the distinguishing feature of which is the ability to accumulate heat using magnesite blocks located inside the heat storage and to transfer stored heat over time. Heat accumulation occurs on average in 8 hours, while heat transfer can reach 20 hours or more in time, which makes it convenient and cost-effective to use this device by the population and legal entities at night during the operation of the reduced tariff for electricity consumption.
Content
Application
Such devices were widely used in the 70s. 20th century in Germany. It was noted that the use of these devices makes it possible to even out the load schedule of the regional energy systems and provides a reduction in losses in the generation and transmission of electricity. In the future, similar systems with heat storage began to be used in other European countries.
Heat stores can be used for their intended purpose for heating various types of premises - country houses, cottages, cottages, office and warehouse premises, premises for economic or industrial purposes, in public catering facilities, apartment buildings.
Job Description
Inside the heat accumulator, heat-storage magnesite blocks are located, and tubular electric heaters pass between them. In order to prevent uncontrolled heat transfer, the heating core should be insulated from the external environment with heat-insulating plates. And to facilitate maintenance and preventive maintenance, the heat accumulator is equipped with quick-detachable elements (usually these are the front and side panels). The air in the heat carrier is heated, passing through special air channels located between the storage units. Heated air enters the exhaust grille, from where it is sent to the external environment using the built-in fan.
The composition of the heating system
The composition of the heating system using heat accumulators may include:
- The required number of heat accumulators, depending on the type of the heated room, its characteristics and other conditions (room volume, heat-insulating properties of the materials from which the room is made, the required level of maintained temperature, etc.);
- The required number of room thermostats. Their number depends not only on the number of heated rooms, but also on the total area of ββthe room (if we are talking about large rooms with a heterogeneous structure of thermal insulation - for example, the presence of entrance doors in one part of the room and their absence in the other);
- Nodes of two tariff or multi-tariff electricity metering and switching equipment.
The heating system may also include control units with weather sensors to control the level of charge and energy consumption of the heat accumulator. The use of control units as part of the heating system is justified when using several heat stores at the same time (more than 5-7). An alternative to control units is usually pressure gauge thermostats, which are located on one side of the body of the heat accumulator.