Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1988-10-31
1990-10-09
Pellinen, A. D.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219365, F24H 112, F24H 306, F28F 2108
Patent
active
049622960
ABSTRACT:
In order to improve the transfer of heat within a heat exchanger, one or more tubes (11) for a heat transporting medium are embedded by casting into a block (12a) of an aluminum alloy or some other metal having a high heat-conducting capacity. The block is at its outward faces provided with surface-enlarging flanges (15), and is enclosed in a casing (13) which defines a passage for a second heat-transporting medium flowing around the block (12a). A block can be prismatic or annular, and a number of blocks can be fitted within the same casing. In one embodiment, electric resistance elements are provided within the embedded tubes as a first heat-transporting medium in order to obtain an electrically heated heat exchanger, with the second heat-transporting medium being for example oil.
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Evans G.
Pellinen A. D.
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