WALL PART, HEAT BUFFER AND ENERGY EXCHANGE SYSTEM

Abstract

Heat buffer comprising at least mechanically coupled wall parts, wherein each of the wall parts comprises a substantially plate-like body; a liquid throughflow circuit incorporated in the body; one or more hydraulic couplings accessible from the outer side of the wall part for discharge and supply of liquid to the liquid throughflow circuit and configured for coupling to hydraulic couplings of a similar device; and is coupled at a mutual angle about a substantially vertical axis to a similar wall part, wherein the mechanically coupled devices are connected such that they enclose one space and wherein the heat buffer also comprises a floor and/or cover part for closing the enclosed space on an upper and/or underside.

Claims

1. A heat buffer, comprising coupled wall parts, wherein: each of the wall parts: comprises a body discrete from and configured to be connectable to another wall part; comprises a liquid throughflow circuit; comprises one or more hydraulic couplings externally accessible for discharge and supply of a heat exchange liquid to the liquid throughflow circuit; and is configured to be attached at a mutual angle about a substantially vertical axis to an adjacent wall part; the wall parts are connected such that they at least partially enclose a space; the heat buffer comprises a floor and/or cover part for closing the at least partially enclosed space on an upper and/or underside; and the at least partially enclosed space can hold a medium for storing thermal energy.

2. The heat buffer as claimed in claim 1, wherein the wall parts are configured to be attached mechanically, comprising a mechanical coupling provided on at least one of the wall parts for attaching the wall part to at least one adjacent wall part.

3. The heat buffer as claimed in claim 1 comprising a plurality of groups of coupled wall parts arranged around each other.

4. The heat buffer as claimed in claim 1, comprising a plurality of groups of coupled wall parts arranged one above another, wherein a thermal insulation is arranged between the wall parts arranged one above another.

5. The heat buffer as claimed in claim 1, wherein the heat buffer has a volume of between 15,000 m.sup.3 and 60,000 m.sup.3.

6. The heat buffer as claimed in claim 5, wherein the heat buffer has a volume of between 15,000 m.sup.3 and 25,000 m.sup.3.

7. A heat buffer as claimed in claim 1, wherein the medium for storing thermal energy comprises water.

8. The heat buffer as claimed in claim 1, further comprising an outer wall forming a cavity surrounding the wall parts.

9. The heat buffer as claimed in claim 8, wherein the outer wall comprises concrete.

10. The heat buffer as claimed in claim 8, wherein the cavity surrounding the wall parts is filled with an insulating material.

11. The heat buffer as claimed in claim 10, wherein the insulating material comprises water.

12. The heat buffer as claimed in claim 8, comprising a clamping means arranged at least partially in the cavity surrounding the wall parts for holding a wall part at a position relative to the outer wall.

13. The heat buffer as claimed in claim 1, wherein the connected wall parts are at least partially underground.

14. A wall part configured for forming a heat buffer, wherein the wall part: comprises a body discrete from and configured to be connectable to another wall part; comprises a liquid throughflow circuit; comprises one or more hydraulic couplings externally accessible for discharge and supply of a heat exchange liquid to the liquid throughflow circuit; and is configured to be attached at a mutual angle about a substantially vertical axis to an adjacent wall part.

15. The wall part as claimed in claim 14, having a width of between one and four meters, and a height of between ten and sixty meters.

16. The wall part as claimed in claim 14, wherein the wall part has a height of between ten and twenty-five meters.

17. The wall part as claimed in claim 14, wherein a wall part comprises prefabricated or poured concrete.

18. The wall part as claimed in claim 17, wherein the liquid throughflow circuit is cast into the concrete.

19. The wall part as claimed in claim 14, wherein the liquid throughflow circuit is arranged on the wall part.

20. A method of constructing a heat buffer, comprising: forming a cavity that at least partially encloses a space; forming an assembly of connected wall parts within the cavity, wherein each of the wall parts: comprises a body discrete from and configured to be connectable to another wall part; comprises a liquid throughflow circuit; comprises one or more hydraulic couplings externally accessible for discharge and supply of a heat exchange liquid to the liquid throughflow circuit; and is configured to be attached at a mutual angle about a substantially vertical axis to an adjacent wall part; hydraulically coupling the wall parts, such that the heat exchange liquid can circulate through the liquid throughflow circuits of the assembly of connected wall parts; and bringing the assembly into contact with a medium having a suitable heat capacity for storing thermal energy within the cavity.

21. The method of constructing a heat buffer as claimed in claim 20, wherein forming the cavity comprises creating a space below ground level.

22. The method of constructing a heat buffer as claimed in claim 20, wherein forming the cavity comprises arranging an outer wall prior to forming the assembly of connected wall parts.

23. The method of constructing a heat buffer as claimed in claim 20, wherein a wall part comprises a latticework body for holding a liquid throughflow circuit hose or tube, and forming the assembly of connected wall parts includes pouring concrete into the latticework.

24. The method of constructing a heat buffer as claimed in claim 20, wherein forming the assembly of connected wall parts comprises positioning a wall part and then fixing the wall part in its position.

25. The method of constructing a heat buffer as claimed in claim 20, wherein forming the assembly of connected wall parts comprises placing a second wall part adjacent to a first wall part in a substantially vertical direction that engages mechanical couplings between the first wall part and the second wall part.

26. The method of constructing a heat buffer as claimed in claim 20, wherein forming the assembly of connected wall parts comprises attaching a first wall part and a second wall part such that a contact surface between the two wall parts forms a liquid-tight seal.

27. The method of constructing a heat buffer as claimed in claim 20, wherein forming the assembly of connected wall parts comprises arranging wall parts around each other in concentric circles or polygons, or in a zigzag or meandering line.

28. The method of constructing a heat buffer as claimed in claim 20, wherein forming the assembly of connected wall parts comprises arranging wall parts one above another.

29. The method of constructing a heat buffer as claimed in claim 28, further comprising placing a substantially horizontal barrier between the wall parts arranged one above another.

30. The method of constructing a heat buffer as claimed in claim 20, wherein bringing the assembly into contact with a medium having a suitable heat capacity for storing thermal energy within the cavity comprises allowing water to enter the cavity.

Description

[0027] The invention will now be elucidated with reference to the following figures. Herein:

[0028] FIGS. 1a,b show a sectional view of a wall part according to the present invention;

[0029] FIG. 1c shows the protrusion and hook construction of FIGS. 1a and 1b in detail;

[0030] FIG. 2 shows a top view of a buffer according to the present invention;

[0031] FIGS. 3a-c show schematic views of the hydraulic system of an energy storage system according to the present invention;

[0032] FIG. 4 shows an example of a weighting of measuring points in a system according to the present invention; and

[0033] FIG. 5 shows a user interface of software for adjusting the control system according to the present invention.

[0034] FIG. 1a shows a sectional view 1 of a wall part 2 according to the present invention, comprising a substantially plate-like body 3 with a liquid throughflow circuit 4 incorporated in the body, and four hydraulic couplings 5, 6, 7, 8 accessible from the outer side of wall part 2 for discharge and supply of liquid to the liquid throughflow circuit 4 and configured for coupling to hydraulic couplings of a similar device. Also visible is a mechanical coupling 9, 10 provided on the wall part and comprising a protrusion 10 and a hook 9 for coupling wall part 2 to at least one similar wall part. Finally shown is a seal 12 for liquid-tight sealing of a contact surface of the two wall parts in the situation where they are coupled to a similar wall part. FIG. 1b shows a top view of an alternative embodiment 2A. Shown in protrusion 10A is a seal 11, and it can be clearly seen that the cross-section of this embodiment is a trapezium-shaped cross-section. It can also be seen that protrusions 10A and the associated hooks can be located on the outer side of a wall part as well as on an end surface. FIG. 1c shows the protrusion and hook construction of FIGS. 1a and 1b in detail.

[0035] FIG. 2 shows a top view 13 of a buffer according to the present invention, consisting of a plurality of preferably connected groups 14, 15, 16 of coupled wall parts 2 arranged around each other.

[0036] FIGS. 3a, b, c show schematic views 17, 18, 19 of the mutual hydraulic coupling of wall parts 20 according to the present invention in accordance with the Tichelmann principle.

[0037] FIG. 4 shows an example of a weighting of measuring points in a system according to the present invention, which adheres to the general guidelines according to the ISSO publication 29 pursuant to the Building Decree 2012, including amendments dated 17 Apr. 2012. The guidelines provided in the ISSO are based on the knowledge gathered from a literature search and experiments. The static and dynamic heat flows of installations have been simulated using computer models. The results of the simulation models have been verified by field measurements, which have contributed toward the final form of these models. For practical use a manual calculation method has been derived with which an installation can be designed in reliable manner on the basis of the building characteristics and comfort requirements. The calculation method consists of eight steps.

[0038] 1. determining the heat loss through outer walls;

[0039] 2. determining heat losses to adjacent buildings;

[0040] 3. determining the heat loss through the roof;

[0041] 4. determining the heat loss through the floor;

[0042] 5. determining infiltration or ventilation losses;

[0043] 6. determining the stationary heat losses;

[0044] 7. determining the heating-up surcharge;

[0045] 8. determining the total capacity to be installed.

[0046] The calculations of internal heat production and solar irradiation are taken into account here. Determining the capacity to be supplied from the tank consists of the eight steps listed above; six for determining the stationary heat demand, one for the heating-up surcharge and one for the capacity to be finally determined and supplied from the tank at a determined point in time. This capacity is determined every 30 minutes by calculating step 1 to 8 with addition or subtraction of information on the internal heat production and solar irradiation received from the building. An adaptive temperature limit value can in this way be provided in accordance with FIG. 5.

[0047] FIG. 5 shows a user interface of software for adjusting the control system according to the present invention.

[0048] In another embodiment, an outer wall is arranged around wall parts for the purpose of thus forming a cavity. Wall parts are held in place by clamping elements formed by bags, before being filled with a filler such as cement and after being filled with this filler.

[0049] The above stated figures are purely illustrative and in no way limit the scope of protection of the present invention as laid down in the following claims.