Jason H Marshall

US Patent:

20130118477, May 16, 2013

Filed:

Nov 15, 2012

Appl. No.:

13/677499

Inventors:

Babcock & Wilcox Power Generation Group, Inc. - Barberton OH, US
Jason M. Marshall - Wadsworth OH, US
Justin A. Persinger - Norton OH, US
Thanneeru D. Rao - Copley OH, US
David T. Wasyluk - Mogadore OH, US
Andrew G. Heap - Pasadena CA, US
Phani Meduri - Mountain View CA, US
James E. Pacheco - Sierra Madre CA, US
Gaurav Soni - Pasadena CA, US

Assignee:

BABCOCK & WILCOX POWER GENERATION GROUP, INC. - Barberton OH

International Classification:

F24J 2/46
F24J 2/04

US Classification:

126609, 126646

Abstract:

A solar receiver has an arrangement of heat transfer surfaces and a heat transfer fluid phase separator, such as a vertical steam/water separator, fluidly interconnected thereto. The receiver includes a plurality of heat transfer fluid filled components, and at least one alternate heat source. When various temperature measurements indicate freezing or solidification of the fluid is possible, the alternate heat source is activated to maintain a temperature of the fluid greater than the freezing/solidification point of the fluid. The application of the alternate heat source further induces natural circulation of the fluid within the components, further providing freeze/solidification protection to the receiver. A controller may be configured to receive sensed temperatures of the fluid, components, ambient air, etc., and use these temperatures relative to a threshold temperature to activate, vary output, and deactivate one or more alternate heat sources.

US Patent:

20130118480, May 16, 2013

Filed:

Nov 15, 2012

Appl. No.:

13/677519

Inventors:

Babcock & Wilcox Power Generation Group, Inc. - Barberton OH, US
David T. Wasluk - Mogadore OH, US
Jusin A. Persinger - Norton OH, US
Jason M. Marshall - Wadsworth OH, US

Assignee:

Babcock & Wilcox Power Generation Group, Inc. - Barberton OH

International Classification:

F24J 2/24

US Classification:

126663, 126604

Abstract:

A dual-exposure heat absorption panel is disclosed, which can be used in a solar receiver design. Generally, the heat absorption panel includes a tube panel through which a heat transfer fluid is flowed to absorb solar energy from heliostats that are focused on the tube panel. A structural support frame surrounds the tube panel. A stiffener structure runs across the exposed faces of the tube panel. The headers and other support structures on the periphery are protected by use of a heat shield. Different tube couplings are possible with this structure, as well as different stiffening structures at the headers. The heat shield can be shaped to create an open space, permitting focusing of sunlight on the edge tubes as well. A curtain can be used as an additional heat shield in certain scenarios.

US Patent:

20130118481, May 16, 2013

Filed:

Nov 15, 2012

Appl. No.:

13/677545

Inventors:

Babcock & Wilcox Power Generation Group, Inc. - Barberton OH, US
David L. Kraft - Massillon OH, US
Justin A. Persinger - Norton OH, US
Jason M. Marshall - Wadsworth OH, US
Melvin J. Albrecht - Homeworth OH, US

Assignee:

BABCOCK & WILCOX POWER GENERATION GROUP, INC. - Barberton OH

International Classification:

F24J 2/24

US Classification:

126663, 126704

Abstract:

A dual-exposure heat absorption panel is disclosed, which can be used in a solar receiver design. Generally, the heat absorption panel includes a tube panel through which a heat transfer fluid is flowed to absorb solar energy from heliostats that are focused on the tube panel. A structural support frame surrounds the tube panel. A stiffener structure runs across the exposed faces of the tube panel. The headers and other support structures on the periphery are protected by use of a heat shield.

US Patent:

20130118482, May 16, 2013

Filed:

Nov 15, 2012

Appl. No.:

13/678320

Inventors:

Babcock & Wilcox Power Generation Group, Inc. - Barberton OH, US
Kiplin C. Alexander - Wadsworth OH, US
Steven P. Iannacchione - Canal Fulton OH, US
Jason M. Marshall - Wadsworth OH, US
Justin A. Persinger - Norton OH, US
David T. Wasyluk - Mogadore OH, US

Assignee:

Babcock & Wilcox Power Generation Group, Inc. - Barberton OH

International Classification:

F24J 2/07
F24J 2/52
F24J 2/24

US Classification:

126663, 126704

Abstract:

A solar receiver includes a multi-sided central assembly with wing assemblies extending from corners thereof. The central assembly includes one-sided heat absorption panels, while the wing assemblies use two-sided heat absorption panels. Stiffener structures run across the exposed faces of the various heat absorption panels.

US Patent:

20130192586, Aug 1, 2013

Filed:

Jul 27, 2012

Appl. No.:

13/560347

Inventors:

David T. Wasyluk - Mogadore OH, US
David L. Kraft - Massillon OH, US
Jason M. Marshall - Wadsworth OH, US
Ruth E. Irwin - Jeannette PA, US

International Classification:

F24J 2/10
F24J 2/34
F24J 2/30
F24J 2/24

US Classification:

126619, 126663, 126684, 126643

Abstract:

A solar receiver is disclosed. The solar receiver is modular, has multiple tube panels in a rectangular/square/polygonal/circular configuration, and is designed for use with molten salt or another heat transfer fluid. The heat transfer fluid flows in a vertical serpentine path through the sides (facets) of the solar receiver. The solar receiver can be shop assembled and can be used with a support tower to form a solar power system.

US Patent:

20200400305, Dec 24, 2020

Filed:

Jun 19, 2019

Appl. No.:

16/445721

Inventors:

- Barberton OH, US
Jason M. MARSHALL - Wadsworth OH, US
Jeremy L. REMUS - Uniontown OH, US

International Classification:

F22B 1/22
F22G 7/14
F22B 21/34

Abstract:

A boiler includes an upper steam drum, an optional intermediate drum, and a lower drum. Each drum is divided by an internal divider into a clean section and a concentrated section. Downcomers connect the upper steam drum to the lower drum, and tubes are connected to convey a heated steam-water mixture from the lower drum into the upper steam drum (through the optional intermediate drum, if provided). An optional superheater has an input terminal connected to receive steam from the clean section of the upper steam drum. An attemperator may be provided to attemperate superheated steam output from an output terminal of the superheater, and the attemperation fluid may optionally be provided from the concentrated side of the upper steam drum.

US Patent:

20200256556, Aug 13, 2020

Filed:

Feb 3, 2020

Appl. No.:

16/779750

Inventors:

- Akron OH, US
Jason M. MARSHALL - Wadsworth OH, US
Jonathan B. FORD - Amory MS, US
Jeremy L. REMUS - Uniontown OH, US

International Classification:

F22D 11/00
E21B 43/24

Abstract:

A boiler includes a steam drum, an intermediate drum, and a lower drum. Each drum is divided into a clean section and a concentrated section. A channel that is fluidly connected to the clean section also runs down one side of the concentrated section in the intermediate drum and the lower drum. The presence of the channels permits low-quality feedwater tubes and high-quality feedwater tubes to be arranged in parallel rows next to each other.

US Patent:

20160097376, Apr 7, 2016

Filed:

Oct 5, 2015

Appl. No.:

14/875122

Inventors:

- Barberton OH, US
Kiplin C. Alexander - Wadsworth OH, US
Kenneth L. Santelmann - Seville OH, US
Jason M. Marshall - Wadsworth OH, US

International Classification:

F03G 6/06
F24J 2/34
F24J 2/46
F24J 2/10

Abstract:

Methods of arranging and operating a molten salt solar thermal energy system are disclosed. Molten salt flows from a set of cold storage tanks to solar receivers which heat the molten salt to a maximum temperature of about 850 F. The heated molten salt is sent to a set of hot storage tanks. The heated molten salt is then pumped to a steam generation system to produce steam for process and/or power generation. Lower salt temperatures are useful in processes that use lower steam temperatures, such as thermal desalination. Lower salt temperatures and low chloride molten salt reduce the corrosion potential, permitting the use of lower cost alloys for the solar receivers, hot storage tanks, salt pumps, piping and instrumentation and steam generation system. Multiple sets of modular, shop assembled storage tanks are also used to reduce the amount of salt piping, simplify draining, and reduce field assembly and plant cost.