Stoves and furnaces – Heaters – Chemical
Patent
1995-04-25
1997-11-18
Price, Carl D.
Stoves and furnaces
Heaters
Chemical
126400, 16510417, 165902, F24H 700, F28D 2000
Patent
active
056877064
ABSTRACT:
A storage heater for storing heat and for heating a fluid, such as water, has an enclosure defining a chamber therein. The chamber has a lower portion and an upper portion with a heating element being disposed within the enclosure. A tube through which the fluid flows has an inlet and an outlet, both being disposed outside of the enclosure, and has a portion interconnecting the inlet and the outlet that passes through the enclosure. A densely packed bed of phase change material pellets is disposed within the enclosure and is surrounded by a viscous liquid, such as propylene glycol. The viscous liquid is in thermal communication with the heating element, the phase change material pellets, and the tube and transfers heat from the heating element to the pellets and from the pellets to the tube. The viscous fluid has a viscosity so that the frictional pressure drop of the fluid in contact with the phase change material pellets substantially reduces vertical thermal convection in the fluid. As the fluid flows through the tube heat is transferred from the viscous liquid to the fluid flowing through the tube, thereby heating the fluid.
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Goswami D. Yogi
Hsieh Chung K.
Jotshi Chand K.
Klausner James F.
Price Carl D.
University of Florida
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