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.

There is herein described a phase change material (PCM) for use in energy storage systems. More particularly there is described a phase change material comprising Strontium Bromide and a Metal Halide that is optimal to storing heat in about the 76ºC to 88ºC temperature range.

There are herein described energy storage systems. More particularly there are provided thermal energy storage systems comprising battery assemblies containing phase change materials and a monitoring system therefor. In addition there are provided thermal stores comprising battery assemblies having integral con...

There are herein described phase change materialscontaining sodium acetate trihydrate having improved homogeneity, a process for the preparation of said materials, and their utility in phase change systems. More particularly, the present invention relates to the use of phase change compositions comprising sodium ace...

The present invention relates to phase-change materials (PCM) which store and release thermal energy by undergoing melt/crystallisation cycles. More particularly, there is described a thermal storage system where sub-cooled phase change material (PCM) is nucleated via a controlled thermal region(s). ...

The present invention describes a vapour compression apparatus wherein an intermediary located heat battery is capable of releasing charge (i.e. discharging) and/or charging and thereby controlling the temperature of a heat source or heat sink temperature in a vapour compression cycle. More particularly, the present...

There is disclosed herein metal nitrate hydrates as phase change materials(PCMs). More particularly, there is disclosed herein metal nitrate hydrate PCMs containing group II metal nitrates as nucleation agents. A further disclosure herein is the combination of multiple chemical species in the PCM formulation which a...

There is herein described phase change materials (PCMs) comprising at least one or a plurality (e.g. a mixture) of tetrafluoroborate salts that are capable of undergoing a solid to solid phase transition. In particular, there is described phase change materials (PCMs) comprising at least one or a plurality (e.g. a m...

The present invention provides an energy storage system (10) for a use with a boiler (20). The energy storage system (10) comprises a plurality of thermal energy storage banks (101, 102, 103, 104). Each thermal energy storage bank(101, 102, 103, 104) comprises phase changeable material having a predetermined ph...

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There is herein defined phase change material (PCM) battery designs which are heated. More particularly, there is described integrally and/or internally located heating devices (e.g. electrical heating devices) in a range of heat batteries containing PCM. In particular, there is described a PCM heat battery comprisi...

There is disclosed herein compositions of sub-zero salt-water eutectic phase change materials which exhibit two crystallisation processes on cooling. Furthermore, there is disclosed additives which can be used to alter the phase change transitions of one or more of these crystallisation processes. ...

There is herein described a kit for producing PCMs comprising one or more additives. There is also described a method of manufacturing a PCM, the method comprising using a kit as described herein and a latent heat storage material or precursor thereof. In particular, there is described a kit for producing PCMs compr...

The present invention discloses a system, apparatus and method for analysing the contents of a phase change material. More specifically, the present invention discloses an apparatus for analysing the compositions of PCMs, as well as blends of anhydrous salts and blends of organic PCMs by their refractive indices. ...

The present disclosure relates to a nucleation agent piece for a phase change material (PCM), specifically for nucleating a PCM. The present disclosure also relates to a method of preparing the nucleation agent piece, a composition comprising a PCM and the nucleation agent piece, a heat battery device comprising the...