It is an object of the present invention to provide a novel cold storage material composition allowing for temperature maintenance of a temperature control target article in various controlled temperature ranges in a range of −75° C. to −30° C., a method of using the cold storage material composition, a cold storage material including the cold storage material composition, and a transport container including the cold storage material. Provided is a cold storage material composition including a multicomponent eutectic which is composed of water and two or more kinds of compounds and having a melting temperature in a range of −75° C. to −30° C.

A first system herein may include: (i) a pumped-heat energy storage system (“PHES system”), wherein the PHES system is operable in a generation mode to convert at least a portion of stored thermal energy into electricity, wherein the PHES system includes a working fluid path circulating a working fluid through, in sequence, at least a compressor system, a hot-side heat exchanger system, a turbine system, a cold-side heat exchanger system, and back to the compressor system; and (ii) a fluid path directing a first fluid through an intercooler and to a power generation plant, and wherein the working fluid path through the compressor system includes circulating the working fluid through, in sequence, at least a first compressor, the intercooler, and a second compressor, and wherein the intercooler thermally contacts the working fluid with the first fluid, transferring heat from the working fluid to the first fluid.

Thermal store, wherein the thermal store includes a basic framework (14) of the thermal store, wherein the basic framework (14) has the form of a three-dimensional grid having a plurality of cells, wherein boundary surfaces between adjacent cells are surrounded by grid lines of the grid, wherein at least one, preferably a plurality, of the boundary surfaces between adjacent cells is permeable to a fluid in order to form a flow path from cell to cell for the fluid.

There is provided a system and a method for transferring energy, the method comprising the steps of: a)feeding a material comprising an absorbed fluid into a tube, b) heating the tube so that the fluid is desorbed in gas phase from the material, so that a fluid flow is created by the desorbed fluid in the tube, causing a flow of the material present as particles, and c) performing one of i) separating the material from the fluid so that a charged material is obtained, and ii)cooling the material and fluid so that the fluid is absorbed by the material whereby heat is released. An advantage is that no active transport means such as pumps are needed to transport the material during charging.

A system including: a pumped-heat energy storage system (“PHES system”), wherein the PHES system is operable in a charge mode to convert electricity into stored thermal energy, wherein the PHES system comprises a working fluid path circulating a working fluid through, in sequence, at least a compressor system, a hot-side heat exchanger system, a turbine system, a cold-side heat exchanger system, and back to the compressor system; and (ii) a fluid path directing a hot fluid from a heat source external to the PHES system through a reheater, wherein a portion of the working fluid path through the turbine system comprises circulating the working fluid through a first turbine, the reheater, and a second turbine, and wherein the working fluid thermally contacts the hot fluid in the reheater, thereby transferring heat from the hot fluid to the working fluid.

The invention is a portable heater assembly for retaining a disposable heating element within and further providing a means for controlling heat output therefrom.

There is herein described energy storage systems. More particularly, there is herein described thermal energy storage systems and use of energy storable material such as phase change material in the provision of heating and/or cooling systems in, for example, domestic dwellings.

It is an object of the present invention to provide a novel cold storage material composition allowing for temperature maintenance of a temperature control target article in various controlled temperature ranges in a range of 75 C. to 30 C., a method of using the cold storage material composition, a cold storage material including the cold storage material composition, and a transport container including the cold storage material. Provided is a cold storage material composition including a multicomponent eutectic which is composed of water and two or more kinds of compounds and having a melting temperature in a range of 75 C. to 30 C.

A packaging system for transporting a payload while maintaining the payload within an acceptable temperature range. The payload is cooled by two sets of U-shaped heat pipes within the payload compartment. A set of cold heat pipes is cooled by a layer of phase change material located above the payload, while a set of warm heat pipes is cooled by a layer of phase change material located below the payload.

A thermal battery includes a heat sink material that remains solid across an operating temperature range (i.e., for all operating modes) of the battery, and a heat conductive material in direct heat transfer relationship with the solid heat sink material. The heat conductive material has a melting point below that of the heat sink material so that in use the heat conductive material is a fluid, for example molten when the heat conductive material is a metal, in the operating temperature range of the battery.