CONTROLLING TRANSFER THROUGH ONE OR MORE TRANSFERRING ELEMENTS
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United States of America Patent
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Issued Date -
Sep 9, 2010
app pub date -
Oct 24, 2008
filing date -
Oct 26, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a method of controlling the transferral of heat, substance, radiation or the like to or from at least a first fluid in a device. The device comprises a stage with a transferring element (2) and a rotatable impeller (3), the impeller being arranged so that the first fluid flowing out of the impeller flows along a surface of the transferring element (2). The flow of the first fluid along the surface of the transferring element comprises a spiralling flow pattern having a radial velocity component (Vr) and a tangential velocity component (Vt), the device further comprises one or more throttling means for throttling the flow of the first fluid through the device. The rotational speed of the impeller and the throttling is mutually controlled so that: 1) the amount of transferral is a function of the radial velocity component (Vr) and a function of the tangential velocity component (Vt), and 2) the radial velocity component (Vr) and the tangential velocity component (Vt) are substantially independent.
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