DOUGLAS JAMES DEVAULT
Pilots at Stroup Rd, Rootstown, OH
License number
Ohio A4983247
Issued Date
Nov 2016
Expiration Date
Nov 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
3786 Stroup Rd, Rootstown, OH 44272
Professional information
Ammonia Absorption Refrigeration Cycle For Combined Cycle Power Plant
US Patent:
5555738, Sep 17, 1996
Filed:
Sep 27, 1994
Appl. No.:
8/313699
Inventors:
Douglas J. DeVault - Rootstown OH
Assignee:
The Babcock & Wilcox Company - New Orleans LA
International Classification:
F25B 2700, F02C 100, F02G 300
US Classification:
622383
Abstract:
A power plant utilizing combined mode steam and gas turbines runs a refrigeration cycle powered by the energy in the rejected heat from the steam turbines and/or other waste heat source to cool the ambient inlet air to the gas turbines to have them operate more efficiently.
Hanger Assembly For Lagging Panel
US Patent:
5701711, Dec 30, 1997
Filed:
Jul 22, 1996
Appl. No.:
8/681188
Inventors:
Gary John Bases - Copley OH
Roger A. Detzel - Norton OH
Douglas James Devault - Rootstown OH
William Joseph Ferkile - St. Petersburg FL
Roger A. Detzel - Norton OH
Douglas James Devault - Rootstown OH
William Joseph Ferkile - St. Petersburg FL
Assignee:
The Babcock & Wilcox Company - New Orleans LA
International Classification:
E04B 230, E04B 174
US Classification:
5250603
Abstract:
A means of attaching and supporting lagging that integrates attachment and support for both insulation and lagging. Angle irons are welded to the hot surface. Insulation pins are also welded to the hot surface at two different levels in a pattern that will support the insulation. The insulation is impaled on the insulation pins. A first subgirt is placed on the angle irons and welded at one end only to an angle iron. The insulation pins are received and extend through bores in the first subgirt. A second subgirt is received on insulation pins at a different level. A fastener is installed oil the end of each insulation pin to hold the subgirts against the outer surface of the insulation. The end of each pin is bent to retain the fasteners in place. The lagging panels are bolted to the subgirts.
Process For Controlling The Moisture Concentration Of A Combustion Flue Gas
US Patent:
7585476, Sep 8, 2009
Filed:
Apr 11, 2007
Appl. No.:
11/733942
Inventors:
William Downs - Stark City OH, US
Douglas J. Devault - Rootstown OH, US
Dennis K. McDonald - Massillon OH, US
Hamid Farzan - Stark County OH, US
Douglas J. Devault - Rootstown OH, US
Dennis K. McDonald - Massillon OH, US
Hamid Farzan - Stark County OH, US
Assignee:
Babcock & Wilcox Power Generation Group Inc. - Barberton OH
International Classification:
B01D 53/34, B01D 53/50, B01D 53/62
US Classification:
423210, 423228, 4232421, 42324301, 431 2, 431 5
Abstract:
The present invention is related to a system for removal of moisture and contaminants from recirculated flue gas. The system includes a spray tower for spraying the flue gas with a liquid reagent to remove contaminants from the flue gas. A heat exchanger, integrally connected to the spray tower, cools the liquid reagent before the reagent is sprayed onto the flue gas stream. Cooled liquid reagent improves the condensation of the water vapor in the flue gas during the spraying process and provides a lower moisture content flue gas exiting the system. Combustion process efficiency improves as flue gas redirected to the burner for combustion contains.
Integrated Flue Gas Dehumidification And Wet Cooling Tower System
US Patent:
8518148, Aug 27, 2013
Filed:
Jul 8, 2011
Appl. No.:
13/178576
Inventors:
Dennis K. McDonald - Massillon OH, US
Douglas J. DeVault - Rootstown OH, US
Paul J. Williams - Akron OH, US
Douglas J. DeVault - Rootstown OH, US
Paul J. Williams - Akron OH, US
Assignee:
Babcock & Wilcox Power Generation Group, Inc. - Barberton OH
International Classification:
B01D 47/00
US Classification:
95 36, 95229, 95231, 95235, 95236, 96242, 96266
Abstract:
A method and system for dehumidifying flue gas from a flue gas-generating process that supplies the flue gas to a wet flue gas processor. A wet cooling tower supplies water to a wet flue gas processor to condense water from the flue gas and form a liquid mixture in the wet flue gas processor.
Integrated Flue Gas Dehumidification And Wet Cooling Tower System
US Patent:
7993615, Aug 9, 2011
Filed:
Jul 6, 2010
Appl. No.:
12/830850
Inventors:
Dennis K. McDonald - Massillon OH, US
Douglas J. Devault - Rootstown OH, US
Vladimir Vaysman - Cumru PA, US
Douglas J. Devault - Rootstown OH, US
Vladimir Vaysman - Cumru PA, US
Assignee:
Babcock & Wilcox Power Generation Group, Inc. - Barberton OH
International Classification:
B01D 53/34, B01D 53/74
US Classification:
423210, 422168, 422187, 95229, 95231
Abstract:
A method and system for dehumidifying flue gas from a flue gas generating. Water is supplied from a cooling tower to a heat exchanger in the liquid in the lower end of a wet flue gas processor for cooling the liquid in the lower end of the wet flue gas processor to condense water from the flue gas into the liquid in the wet flue gas processor. Returning water from the heat exchanger to the cooling tower cools the water and the liquid with the condensed water is supplied from the wet flue gas processor to the cooling tower as make-up water for the cooling tower to reduce or eliminate the need for fresh make-up water.
Pressure Measurement Tap For A Pressurized Fluidized Bed
US Patent:
5596149, Jan 21, 1997
Filed:
Oct 23, 1995
Appl. No.:
8/547007
Inventors:
Douglas J. DeVault - Rootstown OH
Assignee:
The Babcock & Wilcox Company - New Orleans LA
International Classification:
G01L 700
US Classification:
73756
Abstract:
A pressure measurement tap for use in a pressurized fluidized bed for preventing a flow of particulate matter into the measurement tap opening. The pressure measurement tap has an inner pipe for providing purge air through the pressure measurement tap which carries the purge air past a pressure gauge conduit and provides for greater accuracy in measurements. A second embodiment has a constant source of purge air provided to the inner pipe.
Cyclone Furnace For Oxygen Fired Boilers With Flue Gas Recirculation
US Patent:
2006020, Sep 14, 2006
Filed:
Mar 10, 2005
Appl. No.:
11/077062
Inventors:
Douglas Devault - Rootstown OH, US
Dennis McDonald - Massillon OH, US
Dennis McDonald - Massillon OH, US
International Classification:
F23D 1/00
US Classification:
110266000, 110347000
Abstract:
A cyclone furnace and method uses a cyclone burner having a cyclone barrel with a re-entrant throat connected to a main furnace for passing combustion products including flue gas that is rich in carbon dioxide. Crushed coal and oxygen are supplied the cyclone burner and at least some of the flue gas from the main furnace is recirculated to the cyclone barrel.