Heat transfer and storage system

Details Heat transfer and storage system Heat transfer and storage system

1981-08-17

1988-03-01

Davis, Jr., Albert W.

Heat exchange

Regenerator

Checker brick structure

16510417, 165111, 165 84, F28C 314, F28D 1902

Patent

active

047279303

ABSTRACT:
An energy storage and conversion system utilizes unique heat exchange media for storing and transferring heat. In one embodiment, a refractory material is heated to the molten state by a solar furnace. The refractory material is stored in its molten form and metered to a direct-contact heat exchanger. It is fed into the heat exchanger in a plurality of streams that break into a plurality of droplets. The droplets flow through the heat exchanger in countercurrent relationship with a relatively inert gas such as argon or nitrogen. The gas is heated and expanded through an expansion engine to convert the thermal energy to mechanical energy which in turn can be utilized to produce electricity, for example. The refractory can be sufficiently cooled in the heat exchanger to fuse into beads, which can be easily recycled to the solar furnace.

REFERENCES:
patent: 3185457 (1965-05-01), Boll et al.
Nichols, M. C. et al., Direct Contact Heat Exchange for Latent Heat-of-Fusion Energy Storage Systems, Proceedings of Miami International Conference on Alternative Energy Sources, Miami Beach Fla., pp. 3939-3958, 1978.
Fouda, A. E. et al., Solar Storage Systems Using Salt Hydrate Latent Heat and Direct Contact Heat Exchange-1, Solar Energy, vol. 25, pp. 437-444, 1980.

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