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.

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.

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.

Heat exchanger presenting a first gas flow path containing a heat-regenerative packing and a separate second gas flow path containing a heat-conductive packing and use of same for heating a gas to be heated by means of heat recovered from a hot gas in a two-phase alternating heat-recovery process.

Provided is a heat storage tank including at least one chemically inert solid heat storage material containing at least calcium carbonate particles, in which the calcium carbonate particles have a size distribution with a diameter d50 of from 0.5 mm to 200 mm.

A method of pumping a heat transfer fluid in a thermal energy storage system comprising a first thermal energy storage tank connected to a second thermal energy storage tank via a bi-directional flow member. The first and second thermal energy storage tanks are associated with a pressure vessel system comprising a first and second pressure vessel each pressure vessel being partially fillable with an actuating liquid, wherein, the method for pumping comprises: displacing the actuating liquid from the first pressure vessel to the second pressure vessel, thereby creating a pressure difference in the first thermal energy storage tank with respect to the second thermal energy storage tank, and therein displacing the heat transfer fluid via the bi-directional flow member.

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).

A method for cooling a mixed beverage formed with one or more beverage components includes circulating a refrigerant through a heat exchanger having a phase change material to cool a beverage component and sensing a temperature of the refrigerant. The method further includes detecting a first instance when the sensed temperature of the refrigerant equals a threshold refrigerant temperature, detecting a second instance when the sensed temperature of the refrigerant equals the threshold refrigerant temperature, and stopping circulation of the refrigerant when the second instance is detected.

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.

Provided are a latent heat storage material having a melting point within a prescribed temperature range; a latent heat. The latent heat storage material includes a compound (A) represented by a formula (A), an inorganic salt (B) represented by a formula (B) and composed of a cation of an alkali metal and an anion of the same element as the anion of the quaternary alkyl salt, and water. The compound (A) is a material that forms a clathrate hydrate together with the water, the composition ratio of the compound (A) and water is a composition ratio that gives a congruent melting point of the clathrate hydrate, and the molar ratio of the inorganic salt (B) to the compound (A) is 0.1 or more and 10 or less.