Refrigeration – Vortex tube – e.g. – ranque
Patent
1997-11-21
1999-06-15
Capossela, Ronald
Refrigeration
Vortex tube, e.g., ranque
62 87, 62401, F25B 902
Patent
active
059117400
ABSTRACT:
A method of heat transfer enhancement in the vortex tube harnessed in a system including a vortex tube with its slender tube plugged at the far end, fins attached to the slender tube's outer side and a shell and comprising the steps of: enclosing the finned vortex slender tube with the shell, thus forming an outer wall of the heat exchanger; connecting a vortex tube's inlet with the source of compressed gas and then discharging the gas flow through vortex tube's diaphragm, thus providing for the gas flow to undergo an energy separation in the vortex tube; and connecting a separate gas flow with the heat exchanger inlet and then discharging this flow from the heat exchanger outlet, thus providing for the vortex flow to cool down and for the heat exchanger's flow to heat up. The invention is also concerned with a method of heat transfer wherein the vortex tube operates with condensed in the chilled vortex flow gas mixture's components, and includes a preliminary heat exchanger, a separator, a vortex tube with its slender tube having a throttle valve at its far end, fins attached to the slender tube's outer side and the shell, and the steps include connecting a preliminary heat exchanger inlet with a source of the compressed gas; connecting a vortex tube's inlet with the outlet of the preliminary heat exchanger and then discharging the gas flow through vortex tube's diaphragm, thus providing for the gas flow to undergo an energy separation in the vortex tube; directing a portion of the gas flow exiting diaphragm discharge opening through an adjusting valve to the heat exchanger inlet and then discharging this flow from the heat exchanger, thus providing for the flow in the vortex tube gradually cool down; directing another portion of the gas flow exiting diaphragm discharge opening through an adjusting valve to the preliminary heat exchanger's inlet and then discharging this flow from the preliminary heat exchanger, thus also providing for the flow in the vortex tube gradually cool down; combining gas flows exiting both heat exchangers; and directing a gas flow downstream of the throttle valve to the separator to recover a condensed liquid.
REFERENCES:
patent: 3152475 (1964-10-01), Ford, Jr. et al.
patent: 3160490 (1964-12-01), Fabre et al.
patent: 3455117 (1969-07-01), Prelowski
patent: 4302949 (1981-12-01), Longhetto
patent: 4584838 (1986-04-01), AbuJudom II
Krasovitski Boris
Tunkel Lev
Capossela Ronald
Universal Vortex, Inc.
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