Systems and methods for preventing flashback in a combustor assembly

摘要

Embodiments of the present application include a combustor assembly. The combustor assembly may include a combustion chamber, a first plenum, a second plenum, and one or more elongate air/fuel premixing injection tubes. Each of the elongate air/fuel premixing injection tubes may include a first length at least partially disposed within the first plenum and configured to receive a first fluid from the first plenum. Moreover, each of the elongate air/fuel premixing injection tubes may include a second length disposed downstream of the first length and at least partially disposed within the second plenum. The second length may be formed of a porous wall configured to allow a second fluid from the second plenum to enter the second length and create a boundary layer about the porous wall.

主权项

1. A combustor assembly, comprising:
a combustion chamber; a first plenum; a second plenum; and one or more elongate air/fuel premixing injection tubes, each of the one or more elongate air/fuel premixing injection tubes comprising:
a first length at least partially disposed within the first plenum and configured to receive a first fluid from the first plenum, wherein the first length is defined between a forward plate and a mid-plate; anda second length disposed downstream of the first length and at least partially disposed within the second plenum, wherein the second length is defined between the mid-plate and an aft plate, wherein the second length is formed of a porous wall comprising a dense open cell material configured to allow a second fluid from the second plenum to uniformly effuse along the second length and create a boundary layer about the porous wall.