US 12,071,896 B2
Air-to-air heat exchanger potential in gas turbine engines
Eyitayo James Owoeye, Houston, TX (US); and Scott Alan Schimmels, Miamisburg, OH (US)
Assigned to General Electric Company, Cincinnati, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Nov. 2, 2023, as Appl. No. 18/500,546.
Application 18/500,546 is a continuation in part of application No. 17/706,814, filed on Mar. 29, 2022, granted, now 11,834,995.
Prior Publication US 2024/0077027 A1, Mar. 7, 2024
Int. Cl. F02C 7/18 (2006.01)
CPC F02C 7/18 (2013.01) [F05D 2260/213 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gas turbine engine, comprising:
a compressor section, a combustion section, and a turbine section in a serial flow arrangement; and
an air-to-air heat exchanger having an air-to-air heat exchanger potential defined by a product raised to a half power, the product being an effectiveness associated with the air-to-air heat exchanger multiplied by an airflow conductance factor associated with the gas turbine engine, and
wherein the air-to-air heat exchanger potential is between 0.028 and 0.067 for a bypass ratio associated with the gas turbine engine between 3 and 10 and the effectiveness being between 0.5 and 0.9 and is between 0.015 and 0.038 for a bypass ratio associated with the gas turbine engine between 10 and 20 and the effectiveness being between 0.3 and 0.9.