Combustion liner seal with heat transfer augmentation

Details Combustion liner seal with heat transfer augmentation Combustion liner seal with heat transfer augmentation

2006-03-07

2006-03-07

Gartenberg, Ehud (Department: 3746)

Power plants

Combustion products used as motive fluid

Combustion products generator

C060S039370

Reexamination Certificate

active

07007482

ABSTRACT:
A gas turbine combustion liner is disclosed having an alternate interface region between it and a transition duct where the cooling effectiveness and heat transfer along the aft end of the combustion liner is improved, resulting in extended component life. The region of the combustion liner proximate its second end comprises a plurality of first feed holes, a plurality of spring seals that seal against a transition duct, a cooling ring having a plurality of second feed holes, that with the first feed holes pass a cooling fluid into an annulus formed between the cooling ring and combustion liner. The cooling fluid passes over a means for augmenting the heat transfer proximate the combustion liner second end, wherein the heat transfer augmentation preferably comprises a plurality of raised ridges that increases the surface area of the outer liner wall to turbulate the cooling fluid and maximize the cooling effectiveness.

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