A device for heat exchange and positioning in a pipe. The device includes a central body containing a material for storing thermal energy by latent heat accumulation, to be placed in thermal exchange with a circulating surrounding fluid. The device also includes structure for positioning the central body in the volume. The positioning structure is connected to, and extends around, the central body The position structure is also connected to reserving passages that enable contact between the central body and the surrounding fluid and the circulation of the surrounding fluid.

The invention is directed to devices and methods to a heat storage capacity device having at least one body having an encapsulation made of one or more polymer layers defining a hollowed volume filled with PCM and at least one coaxial device surrounding the entire length of the at least one PCM filled body; and uses thereof.

A latent heat storage module includes a plurality of film packs configured to accommodate a phase change material configured to use phase change latent heat as a heat medium of room temperature (0 C. or more). A guide is configured to fix the plurality of film packs.

The present invention relates to a thermal battery having an enclosure (2) containing a bundle (3) comprising tubes (3) of encapsulated phase change material, the bundle (3) being formed by a stack of banks of tubes (3), said banks comprising tubes (3) placed parallel to one another and being connected by bracing and supporting bars (5), said bars (5) comprising, on at least one of their faces, individual housings separated from one another by a lateral wall, each housing being capable of receiving one tube (3).

A thermal energy storage unit is disclosed. The system comprising: a tube having at least one inlet and at least one outlet for a first fluid; a plurality of plate-shaped or box-shaped capsules having a second fluid therein, wherein the plurality of capsules is arranged inside the tube to form a plurality of stacks of capsules; wherein: the first fluid is a heat transfer fluid for exchanging heat with the second fluid; the second fluid is a phase-change medium; wherein a plurality of defined narrow flow paths for the first fluid is provided between the capsules. The defined flow paths increase the efficiency of the system.

An evaporative cooling system includes an indirect cooling coil containing a cooling fluid to be circulated and a blower assembly configured to generate an inlet air stream through the indirect cooling coil. The cooling fluid in the indirect cooling coil is a slurry of water and phase change material.

A storage device for thermal energy includes a thermo-vector unit, and a thermo-accumulator unit. The thermo-vector unit includes one or more flow ducts for a working fluid. The thermo-accumulator unit includes a thermal storage material configured to operate in a thermal exchange relationship with the working fluid and for storing and releasing thermal energy due to a thermal exchange with the working fluid. The thermo-accumulator unit has a thermal diffusivity comprised between 10 and 150 mm2/s.

A high temperature thermal energy storage includes a foundation comprising thermal insulation, at least one self-supported cassette arranged on the foundation. At least one cassette is a self-supporting frame or assembled structure with respect to transport and installation, containing a number of concrete thermal energy storage elements, some or all of the elements include heat exchangers embedded in the concrete of the elements. A pipe system includes an inlet and an outlet for thermal input to and output from the storage, respectively. The pipe system is fluidly coupled to the heat exchangers for circulating fluid through the heat exchangers for thermal energy input to or output from the elements and thermal insulation around and on top of the at least one self-supported cassette containing concrete thermal energy storage elements.

A solar concentrator (100) comprising: a base (190); a framework (170), the framework (170) being hingedly joined to the base (190) such that the framework (170) can be rotated relative to the base (190); and a plurality of mirrors (110) arranged relative to a first axis (200) of the framework (170), such that all of the mirrors (110) are located on one side of a plane which contains the first axis (200), each mirror being fixed to the framework (170) and each mirror being arranged to reflect light travelling parallel to the first axis (200) towards a common focus which lies on the first axis (200).

There is provided a heat storage system including: an indoor space; a heat storage space which is adjacent to the indoor space and in which a latent heat storage material having a melting point or a freezing point in a range of 5 C. or higher and 30 C. or lower is installed; and a natural ventilator controlling introduction and blocking of outside air to the heat storage space, in which a heat resistance between the heat storage space and the outside air is set to be greater than a heat resistance between the heat storage space and the indoor space.