Improved combustor durability - Segmented approach with advanced cooling techniquesDurability characteristics of current combustor liners severely limit liner life requirements of advanced gas turbine engines. This paper summarizes the development of a design which employed an advanced cooling technique and a segmented construction approach as a means to reduce cooling air and improve life through hoop stress reduction. Segmenting enables utilization of alloys with high temperature strength which offers a potential for a four-fold improvement in life relative to hoop construction with conventional materials. Fabrication techniques and results of tests conducted at high inlet pressure and temperature (P = 28 atm. and T = 811 K) are also presented.
Document ID
19810056432
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tanrikut, S. (Pratt and Whitney Aircraft Group East Hartford, CT, United States)
Marshall, R. L. (United Technologies Corp. Pratt and Whitney Aircraft Group, East Hartford, CT, United States)
Sokolowski, D. E. (NASA Lewis Research Center Cleveland, OH, United States)