| 摘要 |
A power generation system (10). Stationary and rotatable blades (34, 37) are positioned about a rotor (8) to receive exhaust gas (46) from a combustor (6) and to impart an axial velocity component. A section of ductwork (48) is positioned to receive the exhaust gas and has a central transition portion (80t) into which the rotor extends. A spiral portion (80s) of the ductwork comprises a helically shaped flow section (80) extending outwardly from the central portion to provide a helical section of the flow path to carry the exhaust gas away from the central portion. A portion of the flow path along the helically shaped flow section may have an area in cross section which increases as a function of position along the flow path. The spiral portion is positioned to redirect the exhaust in a direction orthogonal to the rotor. |
