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1. WO1996038696 - THERMAL ENERGY STORAGE TANK CONTAINING SUBMERGED ICE MASS

Publication Number WO/1996/038696
Publication Date 05.12.1996
International Application No. PCT/US1996/008167
International Filing Date 31.05.1996
Chapter 2 Demand Filed 20.12.1996
IPC
C09K 5/06 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
5Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
02Materials undergoing a change of physical state when used
06the change of state being from liquid to solid or vice-versa
F25D 3/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
3Devices using other cold materials; Devices using cold-storage bodies
02using ice, e.g. ice-boxes
F28D 20/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEAT STORAGE PLANTS OR APPARATUS IN GENERAL
20Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/ or F28D19/119
02using latent heat
CPC
C09K 5/06
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
5Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
02Materials undergoing a change of physical state when used
06the change of state being from liquid to solid or vice versa
F25D 3/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
3Devices using other cold materials; Devices using cold-storage bodies
02using ice, e.g. ice-boxes
F28D 20/021
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
20Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
02using latent heat
021the latent heat storage material and the heat-exchanging means being enclosed in one container
Y02E 60/14
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage
14Thermal storage
Applicants
  • CAROLINA POWER & LIGHT COMPANY [US]/[US] (AllExceptUS)
  • DAVIS, Thomas, L. [US]/[US] (UsOnly)
  • HOBBS, Alexander, O. [US]/[US] (UsOnly)
  • ROBERTS, Barney, P., Jr. [US]/[US] (UsOnly)
Inventors
  • DAVIS, Thomas, L.
  • HOBBS, Alexander, O.
  • ROBERTS, Barney, P., Jr.
Agents
  • RICHARDS, John
Priority Data
08/459,77602.06.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) THERMAL ENERGY STORAGE TANK CONTAINING SUBMERGED ICE MASS
(FR) RESERVOIR DE STOCKAGE D'ENERGIE THERMIQUE CONTENANT UNE MASSE DE GLACE IMMERGEE
Abstract
(EN)
A flooded thermal energy storage tank (10) holds an agglomerated ice mass (14) that is fully submerged in water by a counterbuoyant top (18). The thermal energy stored in the tank is used to satisfy a cyclical thermal cooling load that is uncoupled from the power supply that produces the ice for the tank. A water supply loop (60, 62, 74A, 74D) for supplying cold water to the thermal load assures that the relatively colder water in the tank is supplied by withdrawing the water from an upper location within the ice mass. The supply loop also assures that water returned from the load to the tank is recooled by the ice mass in a thermodynamically efficient manner. The essential symmetry of the ice mass is retained during repetitive ice mass melting and rebuilding in an operational cycle to assure continual stability of the ice mass and tank top.
(FR)
Selon l'invention, un réservoir de stockage (10) d'énergie thermique, rempli d'eau, contient une masse de glace agglomérée (14) qui est complètement immergée dans l'eau, cela grâce à un plafond anti-remontée (18). L'énergie thermique stockée dans le réservoir est utilisée pour satisfaire une charge de refroidissement thermique cyclique qui est désaccouplée de l'alimentation en courant qui produit la glace destinée au réservoir. Une boucle d'alimentation en eau (60, 62, 74A, 74D) servant à alimenter en eau froide la charge thermique assure une alimentation du réservoir en une eau relativement plus froide par le fait que l'eau est retirée à partir d'un point plus élevé de la masse de glace. Grâce à ladite boucle d'alimentation, l'eau renvoyée de la charge au réservoir est de nouveau refroidie par la masse de glace d'une manière efficace sur le plan thermodynamique. La symétrie essentielle de la masse de glace est maintenue pendant les fontes et les reformations répétitives de la masse de glace, au cours d'un cycle de fonctionnement, ce qui garantit une stabilité continue de la masse de glace et du plafond du réservoir.
Also published as
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