Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1977-12-09
1979-06-19
Cohan, Alan
Heat exchange
Movable heating or cooling surface
Rotary drum
165107R, F28D 1300
Patent
active
041583850
ABSTRACT:
A waste heat recovery and storage system is provided which utilizes a first reactor, a second reactor, and an insulated storage device disposed between the first and second reactors. In the preferred embodiment, particulate material to be heated is supplied to pass through the first reactor. In addition, hot waste gases are circulated through the first reactor so that the particulate material passing through the first reactor thermally interacts with and receives heat energy from the hot waste gases. The heated particulate material is then transferred from the first reactor to an insulated storage device which operates to store the heated particulate material and to utilize same as it is needed to supply heat energy to a working fluid. When there is a demand for such heat energy, the heated particulate material is transferred from the insulated storage device to a second reactor to pass therethrough. At the same time, a working fluid to be heated is circulated through the second reactor and thermally interacts with and receives heat energy from the heated particulate material. The heated working fluid is then supplied to a utilization point. After the particulate material has passed through the second reactor and has given up its heat energy to the working fluid, the cooled particulate material is returned from the second reactor to the first reactor so that it can be recycled and reused. In an alternative embodiment, the particulate material may be cooled in the first reactor to cool the working fluid in the second reactor.
REFERENCES:
patent: 3444048 (1969-05-01), Schmeling
patent: 3488042 (1970-01-01), Brzozowski
patent: 3908632 (1975-09-01), Poulsen
patent: 3981355 (1976-09-01), Squires
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