US2012097373A1PendingUtilityA1

Methods for improving pool boiling and apparatuses thereof

46
Individually held — no corporate assignee on recordPriority: Oct 25, 2010Filed: Oct 25, 2010Published: Apr 26, 2012
Est. expiryOct 25, 2030(~4.3 yrs left)· nominal 20-yr term from priority
Inventors:Satish G. Kandlikar
F28F 3/02F28D 15/0266F28F 13/06F28F 3/022F28F 13/187
46
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Claims

Abstract

A method and apparatus for pool boiling includes introducing a fluid into a chamber of a housing which has one or more protruding features. One or more diverters extend at least partially across the one or more protruding features in the chamber. One or more bubbles are formed in the fluid in the chamber as a result of bubble nucleation. At least one of growth and motion of the one or more of the bubbles are diverted with the one or more diverters to generate additional localized motion of the fluid along at least one of the one or more protruding features and other surfaces in the chamber of the housing to at least one of transfer additional heat to the liquid and increase the critical heat flux limit.

Claims

exact text as granted — not AI-modified
1 . A method for pool boiling, the method comprising:
 introducing a liquid into a chamber of a housing which has one or more protruding features and one or more diverters extending at least partially across the one or more features in the chamber;   forming one or more bubbles in the liquid in the chamber as a result of bubble nucleation; and   diverting one or more of the bubbles from the boiling with the one or more diverters which are arranged to generate additional localized motion of the liquid along at least one of the one or more protruding features and other surfaces in the chamber of the housing to at least one of transfer additional heat to the liquid and increase the critical heat flux limit.   
     
     
         2 . The method as set forth in  claim 1  further comprising arranging the one or more diverters to divert at least one of growth and motion of one or more of the bubbles in a selected direction to facilitate heat transfer. 
     
     
         3 . The method as set forth in  claim 1  wherein at least one of the one or more diverters comprises an asymmetric shaped structure with at least one loped surface arranged to divert at least one of growth and motion of one or more of the bubbles in a selected direction to facilitate heat transfer. 
     
     
         4 . The method as set forth in  claim 1  wherein at least one of the one or more diverters comprises a structure with at least a partially triangular shape configured to divert at least one of growth and motion of one or more of the bubbles in a selected direction to facilitate heat transfer. 
     
     
         5 . The method as set forth in  claim 1  wherein at least one of the one or more diverters comprises a structure with at least a partially rounded shape configured to divert at least one of growth and motion of one or more of the bubbles in a selected direction to facilitate heat transfer. 
     
     
         6 . The method as set forth in  claim 1  wherein at least one of the one or more diverters comprises a structure with at least a quadrilateral shape configured to divert at least one of growth and motion of one or more of the bubbles in a selected direction to facilitate heat transfer 
     
     
         7 . The method as set forth in  claim 1  wherein the one or more protruding features comprise one or more fins. 
     
     
         8 . The method as set forth in  claim 7  wherein the one or more fins are in an offset arrangement in the chamber. 
     
     
         9 . The method as set forth in  claim 1  wherein the one or more protruding features comprise one or more pins. 
     
     
         10 . The method as set forth in  claim 1  wherein the forming one or more bubbles further comprises triggering the bubble nucleation in the chamber of the housing to form the one or more bubbles. 
     
     
         11 . A pool boiling apparatus comprising:
 a housing with a chamber;   one or more protruding features in the chamber of the housing;   one or more diverters extending at least partially across the one or more protruding features in the chamber, the chamber of the housing with the one or more protruding features and the one or more diverters configured to form one or more bubbles as a result of bubble nucleation to transfer heat and to divert one or more of the bubbles with the one or more diverters to generate additional localized motion of the liquid along at least one of the one or more protruding features and other surfaces in the chamber of the housing to at least one of transfer additional heat to the liquid and increase the critical heat flux limit.   
     
     
         12 . The apparatus as set forth in  claim 11  wherein the one or more diverters are arranged to divert at least one of growth and motion of one or more of the bubbles in a selected direction to facilitate heat transfer. 
     
     
         13 . The apparatus as set forth in  claim 11  wherein at least one of the one or more diverters comprises an asymmetric shaped structure with at least one loped surface arranged to divert at least one of growth and motion of one or more of the bubbles in a selected direction to facilitate heat transfer. 
     
     
         14 . The apparatus as set forth in  claim 11  wherein at least one of the one or more diverters comprises a structure with at least a partially triangular shape configured to divert at least one of growth and motion of one or more of the bubbles in a selected direction to facilitate heat transfer. 
     
     
         15 . The apparatus as set forth in  claim 11  wherein at least one of the one or more diverters comprises a structure with at least a partially rounded shape configured to divert at least one of growth and motion of one or more of the bubbles in a selected direction to facilitate heat transfer. 
     
     
         16 . The apparatus as set forth in  claim 11  wherein at least one of the one or more diverters comprises a structure with at least a quadrilateral shape configured to divert at least one of growth and motion of one or more of the bubbles in a selected direction to facilitate heat transfer 
     
     
         17 . The apparatus as set forth in  claim 11  wherein the one or more protruding features comprise one or more fins. 
     
     
         18 . The apparatus as set forth in  claim 17  wherein the one or more fins are in an offset arrangement in the chamber. 
     
     
         19 . The apparatus as set forth in  claim 11  wherein the one or more protruding features comprise one or more pins. 
     
     
         20 . The apparatus as set forth in  claim 11  wherein at least one of the chamber of the housing with the one or more protruding features and the one or more diverters configured to is configured to trigger the bubble nucleation in the chamber of the housing to form the one or more bubbles.

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