Fred W Shoemaker

US Patent:

7306653, Dec 11, 2007

Filed:

Oct 22, 2004

Appl. No.:

10/971184

Inventors:

James C. Bellows - Maitland FL, US
Fred W. Shoemaker - Longwood FL, US

Assignee:

Siemens Power Generation, Inc. - Orlando FL

International Classification:

B01D 47/00

US Classification:

95210, 95288, 96272, 96290, 96325, 96327

Abstract:

The present invention comprises an apparatus and method for efficiently venting impurities from a heat recovery steam generator system by concentrating the impurities in a condensing deaerating vent line and then venting a proportionately small amount of steam with a proportionately high concentration of impurities. The condensing deaerating vent line is attached to a low pressure drum , and feed water may be added to the upper portion of the condensing deaerating vent line to improve condensation and conserve thermal energy.

US Patent:

7689515, Mar 30, 2010

Filed:

Dec 10, 2004

Appl. No.:

11/008899

Inventors:

James C. Bellows - Maitland FL, US
Fred W. Shoemaker - Longwood FL, US

Assignee:

Siemens Energy, Inc. - Orlando FL

International Classification:

G06Q 20/00
G01R 11/56
G01N 19/00
C06D 5/06
F02P 3/02
B63H 23/24

US Classification:

705 80, 705412, 738659, 60205, 323371, 363178

Abstract:

A method of evaluating a power plant having a design life based on operating the plant within an allowable chemical exposure range includes accumulating a history of a chemical exposure of a steam generating portion of the power plant. The method also includes determining a remaining life of the plant based on the history of the chemical exposure and assuming continued operation of the plant within the allowable chemical exposure range. The method may also include evaluating an economic value of operating the plant based on the remaining life of the plant.

US Patent:

7976621, Jul 12, 2011

Filed:

Mar 1, 2010

Appl. No.:

12/714721

Inventors:

Fred W. Shoemaker - Longwood FL, US
Michael S. Briesch - Orlando FL, US
Philip G. Deen - Enterprise FL, US
Terrence B. Sullivan - Orlando FL, US

Assignee:

Siemens Energy, Inc. - Orlando FL

International Classification:

B01D 53/14

US Classification:

96234, 95 36, 95194, 95205, 95209, 95227, 95228, 95231, 96240, 96242

Abstract:

A power plant may include a combustion apparatus () producing an exhaust gas (), an absorber () receiving the exhaust gas (), the absorber () including a desiccant and producing a first stream of desiccant solution containing water and a first concentration of desiccant, and an apparatus () for dehydrating the first stream of desiccant solution while maintaining the water in a liquid phase. The apparatus () may include a heat exchanger (), a crystallizing heat exchanger (), a separator () and a flash tank () for dehydrating the desiccant solution while maintaining water in a liquid phase and subsequently recovering water from the solution.

US Patent:

20070175333, Aug 2, 2007

Filed:

Feb 2, 2006

Appl. No.:

11/345724

Inventors:

Fred Shoemaker - Longwood FL, US
Michael Briesch - Orlando FL, US
Philip Deen - Enterprise FL, US
Terrence Sullivan - Orlando FL, US

International Classification:

B01D 53/14

US Classification:

096243000

Abstract:

A power plant may include a combustion apparatus () producing an exhaust gas (), an absorber () receiving the exhaust gas (), the absorber () including a desiccant and producing a first stream of desiccant solution containing water and a first concentration of desiccant, and an apparatus () for dehydrating the first stream of desiccant solution while maintaining the water in a liquid phase. The apparatus () may include one or more reverse osmosis apparatus () that receive the first stream of desiccant solution and produce a second stream of desiccant solution containing a second concentration of desiccant greater than the first concentration of desiccant. The apparatus () may include a heat exchanger (), a crystallizing heat exchanger (), a separator () and a flash tank () for dehydrating the desiccant solution while maintaining water in a liquid phase and subsequently recovering water from the solution.