A transient cooling system includes a first phase change material (PCM) element and a second PCM element. The first PCM element includes a first PCM, a first surface, and a second surface, the first surface complementary to a surface to be cooled. The second PCM element includes a second PCM and a third surface in thermal contact with the second surface. The first PCM and the second PCM may have different thermal characteristics.

The invention relates to a device for heat exchange and positioning in a pipe, the device comprising: 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, and a structure for positioning the central body in the volume, the positioning structure being connected to the central body around which it extends and reserving passages enabling contact between the central body and the surrounding fluid and the circulation of said fluid.

A heat storage device (1) of the present disclosure includes: a heat storage container (10) having an inlet (2) and an outlet (3) for a heat medium; a plate-like heat storage body (4) disposed in the heat storage container (10) and having a heat storage material (4a) and an envelope (4b) containing the heat storage material (4a); a plate-like spacer (6) placed on the heat storage body (4) in the heat storage container (10) and having a plurality of contact portions (6a) that are in contact with the heat storage body (4) and a plurality of non-contact portions (6b) that are spaced from the heat storage body (4), the contact portions (6a) and the non-contact portions (6b) being alternately formed in a specific direction; and a plurality of flow paths (5) for leading the heat medium from the inlet (2) to the outlet (3), the flow paths being formed by a surface of the heat storage body (4) and the non-contact portions (6b) and extending in a direction intersecting the specific direction. Thereby, the heat transfer characteristics between the heat storage material and the heat medium are good.

A thermal transfer blanket includes a flexible container comprising a thermally insulating material. A thermal energy storage media is disposed within the flexible container.

Latent heat storage devices are disclosed, such as latent heat storage devices comprising a phase change material encapsulated in sufficiently conductive tubes, wherein the tubes are arrayed in a hexagonal-packed pattern. The devices herein can be used, for example, in residential and/or commercial HVAC systems.

This relates to a unit for storing and releasing thermal energy including a plurality of blocks (3) each having a body (330) the lateral walls of which delimit a chamber (7) suited to receiving storage and release elements (13) of PCM type, to be placed in heat exchange relationship with a refrigerating or heat-transfer fluid (9) circulating between the chambers via passages; and elements (19) for the thermal management of the chambers arranged around said chambers and at least some of which include a thermally insulating material and others a PCM.

A method and apparatus for storing thermal energy by flowing a heat transfer medium horizontally over and between a plurality of relatively thin concrete plates in parallel flow paths.

A thermal energy storage system utilizes a high temperature storage segment having flow passages extending through the storage segment whereby a working fluid can extract energy from the storage system for powering conventional downstream equipment. A mixing manifold cooperates with an outlet manifold for reducing the temperature of the working fluid to a temperature safe for the downstream equipment. The mixing manifold, an outlet manifold, an inlet manifold and a support base for the high temperature storage segment, are all of a high temperature tolerant material allowing the high temperature storage segment to operate at temperatures in excess of 1000? C. and preferably to temperatures above 1400? C. The temperature of the working fluid provided to the conventional equipment can be managed to be below a maximum temperature which in many cases may be about 700? C.

Provided is a chemical heat storage apparatus that includes a reactor that exchanges heat with a heating object and includes a reaction material generating heat via chemical reaction with a reaction medium, the reaction medium being desorbed from the reaction material when heat is given, a reservoir storing the reaction medium, a reaction medium flow system allowing the reaction medium to flow between the reactor and the reservoir, a heat generation control unit controlling the reaction medium flow system, and an exhaust gas utilization unit desorbing the reaction medium from the reaction material via heat of exhaust gas discharged from an internal combustion engine and heating the heating object via the heat of the exhaust gas when a temperature of the exhaust gas reaches a predetermined temperature or more.

According to an embodiment of the disclosure, an encapsulated phase change material (PCM) heat sink is provided. The encapsulated PCM heat sink includes a lower shell, an upper shell, an encapsulated phase change material, and an internal matrix. The internal matrix includes a space that is configured to receive the encapsulated phase change material. Thermal energy is transferrable between the encapsulated phase change material and at least one of the lower shell and the upper shell. For a particular embodiment, the upper shell is coupled to the lower shell at room temperature and room pressure.