Alstom Technology Limited

General Electric Technology Gmbh

Ian J Perrin

Wesley Paul Bauver, Ii

Donald William Bairley

Glenn T Selby

Christoph Bernhard Ruchti

Rahul Jayant Terdalkar

Francois Droux

François Droux

Thomas W Sambor

Edward Martin Ortman

Falk Ruecker

Aaron Yeaton

Alan C Hazelton

Robert Livermore

William C Balcezak

Christoph Ruchti

Wesley P Ii Bauver

Ii Wesley P Bauver

Wesley P Bauver Ii

A heat recovery steam generator ('HRSG'), which is closely coupled to a gas turbine, includes a flow controls structural arraydisposed upstream of the tubesof the HRSG. The structural arrayis formed of a plurality of grate-like panelssecured to horizontal supportsmounted to the support structure of the HRSG. The structural arraydiffuses the high velocity exhaust streamexiting the gas turbine and redistributes the gas flow evenly throughout the HRSG. The structural arrayreduces wear and damage of the tubes

Apparatus and method for close coupling of heat recovery steam generators with gas turbines

In a nozzle and a nozzle assembly, for use in a pressure vessel, stress analysis is used to determine areas of stress concentration. The nozzle is configured to reduce these stress concentrations.

Nozzle and nozzle assembly configured to minimize combined thermal and pressure stress during transients

A heat recovery steam generator that includes a first steam drum for receiving a flow of water and steam from an evaporator. The first steam drum is adapted to provide the flow of water and steam to a second steam drum. The second steam drum is in fluid communication with the first steam drum and receives the flow of water and steam from the first steam drum and separates steam from the flow of water and steam to form a separated steam. There is a steam flow outlet positioned in the second steam drum, the steam flow outlet adapted to release the separated steam from the second steam drum.

Method and configuration to reduce fatigue in steam drums

A radial nozzle assembly for use in a pressure vessel to enable fluid flow through the vessel wall is provided. The radial nozzle assembly has a nozzle and a cup-shaped flange extending from one end of the nozzle. The nozzle has a bore disposed therethrough along its length to permit fluid flow through the wall of the pressure vessel. The flange is defined by a generally cup or dome-shaped wall having an open end. The nozzle assembly is secured to the wall of the vessel such that the nozzle is disposed in a radial orientation to the flange and possibly in a horizontal orientation.

Radial nozzle assembly for a pressure vessel

An evaporator for steam generation is presented. The evaporator includes a plurality of primary evaporator stages and a secondary evaporator stage. Each primary stage includes one or more primary arrays of heat transfer tubes, an outlet manifold coupled to the arrays, and a downcomer coupled to the manifold. Each of the primary arrays has an inlet for receiving a fluid and is arranged transverse to a flow of gas through the evaporator. The gas heats the fluid flowing through the arrays to form a two phase flow. The outlet manifold receives the two phase flow from the arrays and the downcomer distributes the flow as a component of a primary stage flow. One or more of the plurality of primary evaporator stages selectively form the primary stage flow from respective components of the two phase flow, and provide the primary stage flow to inlets of the secondary evaporator stage.

Once-through vertical evaporators for wide range of operating temperatures

Disclosed herein is a shape optimized header comprising a shell that is operative for collecting a fluid; wherein an internal diameter and/or a wall thickness of the shell vary with a change in pressure and/or a change in a fluid flow rate in the shell; and tubes; wherein the tubes are in communication with the shell and are operative to transfer fluid into the shell. Disclosed herein is a method comprising fixedly attaching tubes to a shell; wherein the shell is operative for collecting a fluid; wherein an internal diameter and/or a wall thickness of the shell vary with a change in pressure and/or a change in a fluid flow rate in the shell; and wherein the tubes are in communication with the shell and are operative to transfer fluid into the shell.

Shape optimized headers and methods of manufacture thereof

Growing community of inventors

North Granby, CT, United States of America

Ian J Perrin