Heat accumulator using ground as sink - has primary and secondary pipe circuits with coils in insulating casing

摘要

The unit uses the ground as the heat sink, and introduces thermal energy into it from an energy receiver. A primary pipe circuit (20) connected to the receiver and incorporating a coil is passed through the ground, while a second pipe circuit (22) is connected to the consumer unit. This likewise incorporates a coil at a short distance from the first one and passed through the ground. A heat-insulating casing (16) encloses the coils, beign clear of them both in the sideways and upwards directions. The two coils can be mounted on a support of metal or plastic, in mat, cloth or mesh form.