A heat storage sheet includes a resin matrix and a heat storage material that is dispersed in the resin matrix. The heat storage sheet has a tensile strength of 0.1 MPa or more and a tensile elongation at break of 10% or more, as measured in accordance with the method of JIS K6251.

A heat exchanger includes: a first flow path through which a first fluid can flow; and a second flow path through which a second fluid can flow, the second flow path having an annular flow path portion extending along an axial direction of the first flow path on an outer peripheral side of the first flow path. A honeycomb structure having an outer peripheral wall and partition walls disposed on an inner side of the outer peripheral wall, the partition walls defining a plurality of cells each extending from a first end face to a second end face, is housed in the first flow path. A heat storage material is retained in some of the cells of the honeycomb structure.

A body for cooling and heating formed from a mixture of a porous medium and a phase change material whereby at least some of the phase change material is absorbed within the pore structure of the porous medium.

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.

Example heat exchangers and methods of use are described herein. An example heat exchanger includes a lattice structure including a plurality of conduits defining a plurality of interstitial voids between the plurality of conduits. Each of the plurality of conduits includes an inlet and an outlet, and the plurality of conduits are arranged such that, between the inlet and the outlet, each of the conduits intersects at least one other conduit to enable flow between the intersecting conduits. The example heat exchanger also includes a first manifold formed unitarily with the lattice structure, the first manifold comprising a first plurality of openings in fluid communication with each inlet of the plurality of conduits. The example heat exchanger further includes a phase change material (PCM) disposed within and substantially filling the plurality of interstitial voids.

A heat transfer system comprises a solid-liquid phase change material (PCM) encapsulated in a plurality of capsules movable through a closed loop circuit by a transfer mechanism.

A heat store for storing at least 100 MWh of thermal energy of a relatively warmer gas in a charging state and for giving off thermal energy to a relatively colder gas in a discharging state is provided. In the charging state, the heat store has at least one inflow surface, provided with inflow openings, for introducing the gas, and at least one outflow surface, provided with outflow openings, for discharging the gas after giving off heat to a granular heat storage medium, wherein the inflow surface is formed at least in certain portions into a channel which is surrounded, in particular completely, by the outflow surface, and wherein an intermediate space in which the granular heat storage medium is arranged is defined between the inflow surface and the outflow surface.

A heat exchange system with at least one heat exchange chamber with heat exchange chamber boundaries which surround at least one heat exchange chamber interior of the heat exchange chamber is provided. The heat exchange chamber boundaries include at least one first opening for guiding in an inflow of at least one heat transfer fluid into the heat exchange chamber interior and at least one second opening for guiding out an outflow of the heat transfer fluid out of the heat exchange chamber interior. At least one heat storage material is arranged in the heat exchange chamber interior such that a heat exchange flow of the heat transfer fluid through the heat exchange chamber interior causes a heat exchange between the heat storage material and the heat transfer fluid.

Systems and methods for energy storage and energy recovery are provided. An electrical-to-electrical energy storage system includes a thermochemical energy storage device, a blower, a compressor, a turbine, and an electrical generator. The TCES device includes a vessel, a porous bed, and a heater. The porous bed is disposed within an interior volume of the vessel. The porous bed comprises a reactive material. The reactive material is configured to release oxygen upon being heated to a reduction temperature, and generate heat when exposed to oxygen. The heater is in thermal contact with the reactive material. The blower is configured to remove oxygen from the interior volume. The compressor is configured to flow oxygen into the interior volume. The turbine is configured to receive a heated, oxygen-depleted gas from the interior volume. The generator is configured to be powered by the turbine to generate electricity.

A heat and moisture exchanger includes: a heat and moisture exchanger material formed by coiling a strip-shaped porous body, the porous body having a plurality of slits formed therein that are arranged along the lengthwise direction, into a spirally-wound shape with the slits facing radially outwardly; and a housing that accommodates the heat and moisture exchanger material. Such a structure for an HME makes it possible to reduce pressure loss and improve moisture retention capabilities by means of a relatively simple structure, thereby allowing the inexpensive provision of an HME that lowers the burden on a patient.