US 11,994,291 B2
Performance factor for a combustion liner
Hiranya Nath, Bengaluru (IN); Ravindra Shankar Ganiger, Bengaluru (IN); Ajoy Patra, Bengaluru (IN); and Rajendra Wankhade, Bengaluru (IN)
Assigned to GENERAL ELECTRIC COMPANY, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Dec. 1, 2022, as Appl. No. 18/060,808.
Claims priority of application No. 202211041697 (IN), filed on Jul. 21, 2022.
Prior Publication US 2024/0027066 A1, Jan. 25, 2024
Int. Cl. F23R 3/00 (2006.01); F23R 3/16 (2006.01); F23R 3/46 (2006.01)
CPC F23R 3/002 (2013.01) [F23R 3/16 (2013.01); F23R 3/46 (2013.01); F05D 2220/32 (2013.01); F05D 2240/35 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An annular combustor comprising:
a combustion liner defining a combustion chamber, the combustion liner having an outer liner and an inner liner; and
a plurality of dimples in the combustion liner, the plurality of dimples having at least one outer liner dimple in the outer liner and at least one inner liner dimple in the inner liner,
wherein the combustion liner is characterized by a performance factor greater than or equal to one and less than or equal to seven, the performance factor defined by:

OG Complex Work Unit Math
where h′ is the radial distance between the at least one outer liner dimple and the at least one inner liner dimple,
h is the radial distance between the outer liner and the inner liner at the same axial location as the at least one outer liner dimple and the at least one inner liner dimple and at a different circumferential location with no dimple of the plurality of dimples,
Ø is a dimple angle of the dimple defined by a first radial axis extending through a first edge of the at least one outer liner dimple or the at least one inner liner dimple and a second radial axis extending through a second edge of the at least one outer liner dimple or the at least one inner liner dimple,
θ is a fuel nozzle angle, and

OG Complex Work Unit Math
is a working fluid pressure drop.