Patent
Diffuser and exhaust system for turbine
TLDR
In this paper, a diffuser and exhaust system for a turbine comprises an axial-radial diffuser, where diffuser inner and outer flow guides (10, 12) extend from an inlet to an outlet, and the exhaust hood comprises two throats or flow passages between the diffuser outlet and an exhaust hood side wall.Abstract:
A diffuser and exhaust system (1) for a turbine comprises an axial-radial diffuser and an exhaust hood (8), where diffuser inner and outer flow guides (10, 12) extend from an inlet to an outlet, and the exhaust hood (8) comprises two throats or flow passages between the diffuser outlet and an exhaust hood side wall (11'). According to the invention, the outer flow guide (12) comprises a recess (14), at one of the said two flow passages. Said flow passage is positioned in relation to a point in the exhaust hood (8) in the direction of the tangential flow velocity vector, where said point in the exhaust hood (8) is farthest away from the exhaust hood outlet (22). The recess (14) prevents a re-acceleration of the flow within the exhaust hood (8) and effects an increase in the performance of the diffuser and exhaust hood system (1).read more
Citations
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Patent
Method and apparatus for radial exhaust gas turbine
TL;DR: In this paper, an involute type casing for a gas turbine engine that includes a radial exhaust diffuser is provided, which is configured to enclose the diffuser, and the top plate, bottom plate, substantially straight sidewalls, and substantially straight plates are engaged so that exhaust from the radial exhaust Diffuser exits the apparatus via an outlet side.
Patent
Hollow steam guide diffuser having increased pressure recovery
TL;DR: A steam turbine includes a diffuser (20) that has a bearing cone (22) and an inner plate (24) of a steam guide that defines a passage through which steam flows as discussed by the authors.
Patent
Exhaust diffuser for a gas turbine engine exhaust system
TL;DR: In this article, an exhaust diffuser for a gas turbine engine includes a diffuser inlet, diffuser exit, an inner diffuser wall, and an outer diffuser.
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Radial channel diffuser for steam turbine exhaust hood
TL;DR: In this paper, a radial channel is used to guide the exhaust steam flow in upper half of the exhaust hood in the flow momentum direction, which reduces vortex generation in upper exhaust hood and increases flow diffusion.
Patent
Gas turbine annular diffusor
Semiu A. Gbadebo,Yan Sheng Li +1 more
TL;DR: In this article, a gas turbine diffuser with a strut with a leading edge extending between a first wall portion and a second wall portion is described, where a first edge portion (304a) of the leading edge (304) is inclined towards a diffuser section outlet.
References
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Patent
Exhaust system for a turbomachine
TL;DR: In this article, an axial flow turbomachine is provided having a diffuser that directs the flow of working fluid from a turbine exit to an exhaust housing having a bottom opening, thereby turning the flow 90° from the axial to radial direction.
Patent
Flow by-pass system for use in steam turbine exhaust hoods
TL;DR: In this paper, a flow bypass system is provided in a downward-discharging exhaust hood of a steam turbine to bypass a small percentage of the total steam flow from the top portion of the exhaust hood to the vicinity of the condenser and to decrease energy loss caused by friction and thus to improve turbine efficiency.
Patent
Method of modifying a steam turbine
Lewis Gray,John C. Groenendaal +1 more
TL;DR: In this article, a steam turbine with improved stationary parts is described, in which a moisture removal slot is formed in a blade ring cylinder immediately upstream of the last row of rotating blades.
Patent
Diffuser and exhaust gas collector arrangement
TL;DR: In this article, a gas turbine engine having a diffuser provided downstream of the power section and composed of inner and outer diffuser wall members forming therebetween a diffusion chamber which is open into an exhaust gas collector chamber is provided with at least one flow guide member which extends on the generally frustoconical outer peripheral surface of the outer diffusor wall member and which is curved arcuately or circularly about the common center axis of the inner and external wall members for suppressing formation of vortices in the flow of combustion gases being exhausted through the collector chamber.