Larry J Carlson

US Patent:

H19, Feb 4, 1986

Filed:

Dec 21, 1983

Appl. No.:

6/564127

Inventors:

Larry W. Carlson - Oswego IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

F23D 1324
F23M 900

US Classification:

431 12

Abstract:

A fuel injection system and method provide for shaping a combustion plume within a combustion chamber to effectively recirculate hot combustion gases for stable combustion conditions while providing symmetrical combustion conditions. Char and molten slag are passed to the outer boundary layer to complete combustion of char while permitting initial substoichiometric combustion in a reductive atmosphere for reducing discharge of nitrogen oxides. Shaping of the plume is accomplished by an axially adjustable pintle which permits apportionment of driving pressure between elements which contribute tangential and those which contribute radial directional components to oxidant flow entering the combustion chamber.

US Patent:

44730365, Sep 25, 1984

Filed:

Dec 28, 1982

Appl. No.:

6/453980

Inventors:

Larry W. Carlson - Oswego IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

F22G 500

US Classification:

122479A

Abstract:

A liquid, in heat transfer contact with a surface heated to a temperature well above the vaporization temperature of the liquid, will undergo a multiphase (liquid-vapor) transformation from 0% vapor to 100% vapor. During this transition, the temperature driving force or heat flux and the coefficients of heat transfer across the fluid-solid interface, and the vapor percentage influence the type of heating of the fluid--starting as "feedwater" heating where no vapors are present, progressing to "nucleate" heating where vaporization begins and some vapors are present, and concluding with "film" heating where only vapors are present. Unstable heating between nucleate and film heating can occur, accompanied by possibly large and rapid temperature shifts in the structures. This invention provides for injecting into the region of potential unstable heating and proximate the heated surface superheated vapors in sufficient quantities operable to rapidly increase the vapor percentage of the multiphase mixture by perhaps 10-30% and thereby effectively shift the multiphase mixture beyond the unstable heating region and up to the stable film heating region.

US Patent:

45947937, Jun 17, 1986

Filed:

Aug 16, 1984

Appl. No.:

6/641222

Inventors:

Larry W. Carlson - Oswego IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

F26B 310

US Classification:

34 10

Abstract:

Apparatus for drying pulverized material utilizes a high enthalpy condensable vapor such as steam for removing moisture from the individual particles of the pulverized material. The initially wet particulate material is tangentially delivered by a carrier vapor flow to an upper portion of a generally vertical cylindrical separation drum. The lateral wall of the separation drum is provided with a plurality of flow guides for directing the vapor tangentially therein in the direction of particulate material flow. Positioned concentrically within the separation drum and along the longitudinal axis thereof is a water-cooled condensation cylinder which is provided with a plurality of collection plates, or fins, on the outer lateral surface thereof. The cooled collection fins are aligned counter to the flow of the pulverized material and high enthalpy vapor mixture to maximize water vapor condensation thereon. The condensed liquid which includes moisture removed from the pulverized material then flows downward along the outer surface of the coolant cylinder and is collected and removed.

US Patent:

48380350, Jun 13, 1989

Filed:

May 5, 1988

Appl. No.:

7/190567

Inventors:

Larry W. Carlson - Oswego IL
Harold Herman - Park Forest IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

B01D 800

US Classification:

62 555

Abstract:

An improved cryopump for the removal of gases from a high vacuum, comprising a cryopanel incorporating honeycomb structure, refrigerant means thermally connected to the cryopanel, and a rotatable channel moving azimuthally around an axis located near the center of the cryopanel, removing gases absorbed within the honeycomb structure by subliming them and conducting them outside the vacuum vessel.

US Patent:

47827700, Nov 8, 1988

Filed:

Jan 26, 1988

Appl. No.:

7/148513

Inventors:

Larry W. Carlson - Oswego IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

F23D 102

US Classification:

110264

Abstract:

A particulate coal combustor with two combustion chambers is provided. The first combustion chamber is toroidal; air and fuel are injected, mixed, circulated and partially combusted. The air to fuel ratio is controlled to avoid production of soot or nitrogen oxides. The mixture is then moved to a second combustion chamber by injection of additional air where combustion is completed and ash removed. Temperature in the second chamber is controlled by cooling and gas mixing. The clean stream of hot gas is then delivered to a prime mover.

US Patent:

46204938, Nov 4, 1986

Filed:

Aug 30, 1985

Appl. No.:

6/770907

Inventors:

Larry W. Carlson - Oswego IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

F23G 704

US Classification:

110346

Abstract:

A method and apparatus for reducing the moisture content of a moist sewage sludge having a moisture content of about 50% to 80% and formed of small cellular micro-organism bodies having internally confined water is provided. A hot liquid metal is circulated in a circulation loop and the moist sewage sludge is injected in the circulation loop under conditions of temperature and pressure such that the confined water vaporizes and ruptures the cellular bodies. The vapor produced, the dried sludge, and the liquid metal are then separated. Preferably, the moist sewage sludge is injected into the hot liquid metal adjacent the upstream side of a venturi which serves to thoroughly mix the hot liquid metal and the moist sewage sludge. The venturi and the drying zone after the venturi are preferably vertically oriented. The dried sewage sludge recovered is available as a fuel and is preferably used for heating the hot liquid metal.