Abstract 1,027,719. Heat-transfer devices. UNITED STATES ATOMIC ENERGY COMMISSION. Nov. 25, 1964 [Dec. 2, 1963], No. 47900/64. Headings F4S and F4U. A heat-transfer device operating in the manner of a Perkins tube comprises a sealed container in which vapour flows by virtue of the vapour pressure gradient between a region of high temperature 1 and a region of lower temperature 2 where the vapour condenses, the condensate being re-circulated to the high temperature region along a capillary path of glass frit or wire mesh 3. Various combinations of heat transfer fluid and container material suggested are water and heat-resistant glass; lithium and a niobium zirconium alloy; silver and tantalum; sodium and stainless steel. The container may be heated at one end and the vapour condensed at the other or alternatively the container may be heated somewhere along its length and the vapour condensed at both ends.
A HEAT TRANSFER DEVICE COMPRISING A CONTAINER HAVING CONDENSER AND EVAPORATOR REGIONS COMPOSED OF NIOBIUM1% ZIRCONIUM ALLOY, SAID CONTAINER ENCLOSING A CONDENSABLE VAPOR CONSISTING OF LITHIUM, CAPILLARY MEANS, SAID CAPILLARY MEANS COVERING THE ENTIRE INNER SURFACE OF THE CONTAINER EXCEPT FOR A PORTION OF THE CONDENSING REGION, THE QUANTITY OF CONDENSABLE VAPOR PRESENT BEING JUST SUFFICIENT TO SATURATE THE CAPILLARY MEANS WHEN CONDENSED AND PROVIDE A SMALL EXCESS, SAID CAPILLARY MEANS CAPABLE OF CAUSING THE TRANSPORT OF THE CONDENSED VAPOR FROM THE COOLER AREA OF THE CONTAINER TO THE HOTTER AREA.
Claim 2
Dependent Claim
91 words
A HEAT TRANSFER DEVICE COMPRISING A CONTAINER HAVING CONDENSER AND EVAPORATOR REGIONS COMPOSED OF NIOBIUM1% ZIRCONIUM ALLOY, SAID CONTAINER ENCLOSING A CONDENSABLE VAPOR CONSISTING OF LITHIUM, CAPILLARY MEANS, SAID CAPILLARY MEANS COVERING THE ENTIRE INNER SURFACE OF THE CONTAINER EXCEPT FOR A PORTION OF THE CONDENSING REGION, THE QUANTITY OF CONDENSABLE VAPOR PRESENT BEING JUST SUFFICIENT TO SATURATE THE CAPILLARY MEANS WHEN CONDENSED AND PROVIDE A SMALL EXCESS, SAID CAPILLARY MEANS CAPABLE OF CAUSING THE TRANSPORT OF THE CONDENSED VAPOR FROM THE COOLER AREA OF THE CONTAINER TO THE HOTTER AREA.