Fin and Tube Heat Exchanger

Abstract

The present application provides a fin and tube heat exchanger. The fin and tube heat exchanger may include a number of tubes with a number of fins positioned on each of the tubes. The tubes may include a first set of tubes and a second set of tubes with the first set of tubes including an offset position as compared to the second set of tubes.

1 . A fin and tube heat exchanger, comprising:
 a plurality of tubes; and   a plurality of fins positioned on each of the plurality of tubes;   the plurality of tubes comprising a first set of tubes and a second set of tubes;   wherein the first set of tubes comprises an offset position as compared to the second set of tubes.   
     
     
         2 . The fin and tube heat exchanger of  claim 1 , wherein the first set of tubes comprises a first row of tubes and a second row of tubes. 
     
     
         3 . The fin and tube heat exchanger of  claim 2 , wherein the first row of tubes and the second row of tubes comprise an inline position relative to a flow across the first row of tubes and the second row of tubes. 
     
     
         4 . The fin and tube heat exchanger of  claim 2 , wherein the second set of tubes comprises a third row of tubes and a fourth row of tubes. 
     
     
         5 . The fin and tube heat exchanger of  claim 1 , wherein the offset position comprises about a half of a fin length 
     
     
         6 . The fin and tube heat exchanger of  claim 1 , wherein the plurality of fins comprises a plurality of rectangular fins. 
     
     
         7 . The fin and tube heat exchanger of  claim 1 , wherein the plurality of fins comprises a plurality of vortex generators thereon. 
     
     
         8 . The fin and tube heat exchanger of  claim 7 , wherein the plurality of vortex generators comprises a substantially triangular shape. 
     
     
         9 . The fin and tube heat exchanger of  claim 7 , wherein the plurality of vortex generators comprises one or more upward angles and one or more downward angles. 
     
     
         10 . The fin and tube heat exchanger of  claim 1 , wherein the plurality of fins comprises a substantially eccentric position about each tube. 
     
     
         11 . The fin and tube heat exchanger of  claim 1 , wherein a first plurality of fins positioned on a first tube and a second plurality of fins positioned on a second tube comprise a gap therebetween. 
     
     
         12 . The fin and tube heat exchanger of  claim 1 , wherein the fin and tube heat exchanger comprises a heat recovery steam generator. 
     
     
         13 . A fin and tube heat exchanger, comprising:
 a plurality of tubes; and   a plurality of rectangular fins positioned on each of the plurality of tubes;   wherein the plurality of rectangular fins comprises one or more vortex generators thereon.   
     
     
         14 . The fin and tube heat exchanger of  claim 13 , wherein the one or more vortex generators comprise a substantially triangular shape. 
     
     
         15 . The fin and tube heat exchanger of  claim 13 , wherein the one or more vortex generators comprise one or more upward angles and one or more downward angles. 
     
     
         16 . The fin and tube heat exchanger of  claim 13 , wherein the one or more vortex generators comprise an opposed pair of upward angles and an opposed pair downward angles. 
     
     
         17 . The fin and tube heat exchanger of  claim 13 , wherein the plurality of rectangular fins comprises a substantially eccentric position about each tube. 
     
     
         18 . The fin and tube heat exchanger of  claim 13 , wherein a first plurality of rectangular fins positioned on a first tube and a second plurality of rectangular fins positioned on a second tube comprise a gap therebetween. 
     
     
         19 . The fin and tube heat exchanger of  claim 13 , wherein the plurality of tubes comprises a first set of tubes and a second set of tubes and wherein the first set of tubes comprises an offset position as compared to the second set of tubes. 
     
     
         20 . A fin and tube heat exchanger, comprising:
 a plurality of tubes   the plurality of tubes comprising a first set of tubes and a second set of tubes;   wherein the first set of tubes comprises an offset position as compared to the second set of tubes; and   a plurality of rectangular fins positioned on each of the plurality of tubes;   wherein the plurality of rectangular fins comprises a plurality of vortex generators thereon.