NASA NTRS · 19820025517
The CF6 Jet Engine Performance Improvement - Low Pressure Turbine Active Clearance Control
Abstract
A low pressure turbine (LPT) active clearance control (ACC) cooling system was developed to reduce the fuel consumption of current CF6-50 turbofan engines for wide bodied commercial aircraft. The program performance improvement goal of 0.3% delta sfc was determined to be achievable with an improved impingement cooling system. The technology enables the design of an optimized manifold and piping system which is capable of a performance gain of 0.45% delta sfc.
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Beck, B. D., Fasching, W. A.. 1982-06-01. The CF6 Jet Engine Performance Improvement - Low Pressure Turbine Active Clearance Control. https://ntrs.nasa.gov/citations/19820025517
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