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US 2019/0195519 A1Published application
Room space Cooling with Improved Thermal Storage
AssigneeTwyce Energy Ltd.
InventorsRajan Kapur, Vikram Murthy, Jay R Akhave
Life of this patent
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Abstract
A thermal storage system, capable of storing and releasing thermal energy, with a radiative heat exchange outer surface and a method of operating the device to cool a room-space without using a circulating refrigerant in the room cooling step
Claims19
A regenerative thermal storage system for cooling a room-space comprising
- a storage tank holding a phase change material and having an internal cooling coil and having a portion of the tank outer surface located such that within or proximate to the room-space wherein the said outer surface of the storage tank is the principal pathway for heat exchange between the room-space and the phase change material;
- and
- a refrigeration cycle unit outside the room-space to provide refrigerant circulation to the said coil for cooling the phase change material;
- and
- a control system to operate the said thermal storage system in CHARGING, DISCHARGING and MIXED modes.
2 more elements
An improved method of operating thermal energy storage to cool a room-space comprising
- (i) locating thermal storage tank proximate to or in the room-space,
- (ii) cooling the thermal storage in a CHARGING mode with heat transfer between the thermal storage and the outdoor air,
- (iii) cooling the room-space in a DISCHARGING mode with heat transfer between the room interior and the thermal storage via the external heat exchange surface of the energy storage device.
Dependencies are inferred from the claim text.