(19)
(11) EP 0 145 867 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.12.1985 Bulletin 1985/50

(43) Date of publication A2:
26.06.1985 Bulletin 1985/26

(21) Application number: 84111657

(22) Date of filing: 28.09.1984
(84) Designated Contracting States:
BE DE FR GB IT NL SE

(30) Priority: 21.12.1983 US 563906

(71) Applicant: AIR PRODUCTS AND CHEMICALS, INC.
 ()

(72) Inventors:
  • Kalb, Charles Edward
     ()
  • Newton, Charles Leo
     ()

   


(54) Ultra-low fin heat exchanger with enhanced heat transfer


(57) The present invention is directed to apparatus and a process for heat exchanging wherein ultra-low fins are affixed to the outside of a tubular conduit to enhance heat transfer. The invention has particular application to base load natural gas liquefaction coil-wound heat exchangers.





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