James C Bellows

US Patent:

6804964, Oct 19, 2004

Filed:

Sep 19, 2002

Appl. No.:

10/247163

Inventors:

James C. Bellows - Maitland FL
Eugene John Barsness - Parkesburg PA
Michael Scot Briesch - Orlando FL

Assignee:

Siemens Westinghouse Power Corporation - Orlando FL

International Classification:

F02C 700

US Classification:

60772, 60 395

Abstract:

A combustion turbine power plant ( ) incorporating a water recovery apparatus ( ). A sulfur stripper portion of the water recovery apparatus uses water ( ) to remove suffer from the exhaust ( ) of the combustion turbine ( ) and to produce a reasonably high concentration of sulfuric acid for subsequent recovery of the sulfur. A water stripper portion ( ) of the water recovery apparatus uses an aqueous solution of a desiccant ( ) to absorb water from the exhaust gas. The wet desiccant may then be heated or exposed to a sub-atmospheric pressure in a regenerator ( ) to recover the water. A sub-atmospheric regenerator may be maintained at a sufficiently high temperature by transferring waste heat from the exhaust gas. The resulting moisture content of the exhaust gas may be below that which can be achieved using traditional cooling heat exchangers.

US Patent:

6872308, Mar 29, 2005

Filed:

Dec 13, 2003

Appl. No.:

10/734821

Inventors:

James C. Bellows - Maitland FL, US

Assignee:

Siemens Westinghouse Power Corporation - Orlando FL

International Classification:

C02F001/42
C02F009/00

US Classification:

210284, 210290

Abstract:

The present invention provides for a condensate polisher system that comprises a feed water flow that enters one or more deep bed condensate polishers. These deep bed condensate polishers contain ion resin beads that exchange a single ion type, typically cation resin for power generation systems. The feed water passing through the deep bed condensate polishers has a substantial portion, and even all of the cations in solution removed. This produces a semi-purified water flow that is then fed into one or more powdered resin polishers. The powdered resin polishers, which contain mixed powdered ion exchange resins or single type powdered resins depending on the nature of the semi-purified water flow, then finish the purification process on the water, producing a purified water flow.

US Patent:

7017330, Mar 28, 2006

Filed:

Oct 6, 2004

Appl. No.:

10/959533

Inventors:

James C. Bellows - Maitland FL, US

Assignee:

Siemens Westinghouse Power Corporation - Orlando FL

International Classification:

F02C 7/00

US Classification:

60 395, 60801

Abstract:

A combustion turbine power plant () incorporating a desiccating scrubber () for simultaneously removing water and sulfur from a flue gas () of the power plant (). The desiccating scrubber () may include an inlet nozzle () for spraying an aqueous solution () containing a desiccant and a base into flue gas () so the aqueous solution () makes direct contact with flue gas (). A filter () may be provided to collect sulfur compounds downstream of the desiccating scrubber () and a regenerator () may be provided for recovering water. A controller () may control a base supply () and a desiccant supply () to regulate the respective amounts of each introduced into the aqueous solution (). Controller () may be responsive to sensors () measuring the water and sulfur content of flue gas () exhausted to atmosphere (). The desiccating scrubber () may include a demister () to entrain carryover droplets from a sprayed aqueous solution ().

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:

7337613, Mar 4, 2008

Filed:

Jan 28, 2005

Appl. No.:

11/045712

Inventors:

James C Bellows - Maitland FL, US

Assignee:

Siemens Power Generation, Inc. - Orlando FL

International Classification:

F01K 13/02

US Classification:

60660, 60670

Abstract:

The present invention involves a system for controlling the electric charge within the exhaust hood and condenser of a steam turbine by using shaft current as an indirect measurement of exhaust charge, and then adjusting the pH accordingly. The present invention uses the turbine-generator shaft instead of a probe, and therefore measures the potential of the current in the shaft to the ground. This measurement is then fed into a control unit which adjusts the chemical feed to the feedwater supply of the steam turbine system.

US Patent:

7431757, Oct 7, 2008

Filed:

Oct 18, 2005

Appl. No.:

11/252954

Inventors:

James C. Bellows - Maitland FL, US

Assignee:

Siemens Power Generation, Inc. - Orlando FL

International Classification:

B01D 53/14
B01D 53/26

US Classification:

96244, 96295, 60310, 42324301

Abstract:

A combustion turbine power plant () incorporating a desiccating scrubber () for simultaneously removing water and sulfur from a flue gas () of the power plant (). The desiccating scrubber () may include an inlet nozzle () for spraying an aqueous solution () containing a desiccant and a base into flue gas () so the aqueous solution () makes direct contact with flue gas (). A filter () may be provided to collect sulfur compounds downstream of the desiccating scrubber () and a regenerator () may be provided for recovering water. A controller () may control a base supply () and a desiccant supply () to regulate the respective amounts of each introduced into the aqueous solution (). Controller () may be responsive to sensors () measuring the water and sulfur content of flue gas () exhausted to atmosphere (). The desiccating scrubber () may include a demister () to entrain carryover droplets from a sprayed aqueous solution ().

US Patent:

7640724, Jan 5, 2010

Filed:

Jan 25, 2006

Appl. No.:

11/339720

Inventors:

James C. Bellows - Maitland FL, US
Abol H. Moulavi - Oviedo FL, US

Assignee:

Siemens Energy, Inc. - Orlando FL

International Classification:

F02C 6/00

US Classification:

60 39182, 60775, 60 3953

Abstract:

A steam cycle power plant () is provided that may include a steam source generating steam (), a steam turbine () receiving the generated steam and discharging an exhaust steam, a condenser () receiving the exhaust steam and an atomizer () for injecting water into the exhaust steam downstream of the steam turbine () and upstream of a cooling surface of the condenser () effective to reduce a backpressure on the steam turbine () and improve a heat rate of the steam turbine (). The atomizer () may include a plurality of symmetrical spaced fluid connections () and a plurality of atomizing nozzles () affixed proximate at least one exhaust end of the steam turbine (). The power plant () may be a combined cycle power plant including a heat recovery steam generator () and a gas turbine engine ().

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.

Author:

James G. Bellows

ISBN #:

0090863704

Author:

James G. Bellows

ISBN #:

0740719017