| 摘要 |
The thermal store comprises a vessel 2 and a heat exchanger 10. The heat exchanger is mounted within the vessel and includes first and second fluid flow paths that are separate from one another. The vessel is adapted to receive a liquid phase change material and may include a lid 3 that forms a hermetic seal with the vessel. The heat exchanger may be removable from the vessel and comprise a plurality of laminar plates 11, wherein each plate includes a first and a second conduit on either side of the plate, the conduits being arranged in a spiral pattern and forming part of the first and second fluid flow paths. The plates may include connection elements 12 to interconnect the plates to form a modular heat exchanger. The heat exchanger may be submerged in the phase change material. The thermal store may be incorporated in a heating or cooling system, in which the first fluid flow path is used to charge the thermal store and the second fluid flow path to discharge the thermal store. A modular heat exchanger plate and method of installing a thermal energy store are also claimed.
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