Cheng Xu

US Patent:

20190066857, Feb 28, 2019

Filed:

Sep 4, 2018

Appl. No.:

16/121560

Inventors:

- Bellevue WA, US
Greg A. Vetterick - Seattle WA, US
Cheng Xu - Kirkland WA, US

Assignee:

TerraPower, LLC - Bellevue WA

International Classification:

G21F 1/08
C22C 38/02
C22C 38/32
B32B 15/01
B32B 1/02
G21F 5/015
C22C 38/22
C22C 38/28
C22C 38/26
C22C 38/00
G21C 3/20
C22C 27/02

Abstract:

This disclosure describes various configurations and components for bimetallic and trimetallic claddings for use as a wall element separating nuclear material from an external environment. The cladding materials are suitable for use as cladding for nuclear fuel elements, particularly for fuel elements that will be exposed to sodium or other coolants or environments with a propensity to react with the nuclear fuel.

US Patent:

20180233238, Aug 16, 2018

Filed:

Jul 17, 2017

Appl. No.:

15/651884

Inventors:

- Bellevue WA, US
Greg A. Vetterick - Seattle WA, US
Cheng Xu - Kirkland WA, US

Assignee:

TerraPower, LLC - Bellevue WA

International Classification:

G21C 3/07
C22C 27/02
C22C 38/32
C22C 38/28
C22C 38/26
C22C 38/24
C22C 38/22
C22C 38/02
C22C 38/00
B32B 1/02
B32B 15/01
B23K 20/02
C23C 30/00

Abstract:

This disclosure describes various configurations and components for bimetallic and trimetallic claddings for use as a wall element separating nuclear material from an external environment. The cladding materials are suitable for use as cladding for nuclear fuel elements, particularly for fuel elements that will be exposed to sodium or other coolants or environments with a propensity to react with the nuclear fuel.

US Patent:

20180233241, Aug 16, 2018

Filed:

Jun 14, 2017

Appl. No.:

15/623119

Inventors:

- Bellevue WA, US
Greg A. Vetterick - Seattle WA, US
Cheng Xu - Kirkland WA, US

Assignee:

TerraPower, LLC - Bellevue WA

International Classification:

G21F 1/08
C22C 27/02
C22C 38/32
C22C 38/28
C22C 38/26
C22C 38/22
C22C 38/02
C22C 38/00
B32B 15/01
B32B 1/02
G21F 5/015

Abstract:

This disclosure describes various configurations and components for bimetallic and trimetallic claddings for use as a wall element separating nuclear material from an external environment. The cladding materials are suitable for use as cladding for nuclear fuel elements, particularly for fuel elements that will be exposed to sodium or other coolants or environments with a propensity to react with the nuclear fuel.

US Patent:

20160379726, Dec 29, 2016

Filed:

Jan 26, 2015

Appl. No.:

14/605831

Inventors:

- Bellevue WA, US
Ryan Latta - Bellevue WA, US
Samuel J. Miller - Seattle WA, US
Gary Povirk - Niskayuna NY, US
Mark R. Werner - Bellevue WA, US
Cheng Xu - Kirkland WA, US

Assignee:

TERRAPOWER, LLC - Bellevue WA

International Classification:

G21D 3/00
G21C 3/04

Abstract:

A computerized system for modeling reactor fuel element and fuel design to determine the thermo-mechanical performance thereof includes a processor coupled to memory, the memory configuring the processor to execute a fuel element analysis and an output configured to communicate data that describes the thermo-mechanical performance of the fuel element and fuel design based on the fuel element performance analysis. The processor is configured to estimate the mechanical behavior of a fuel by creating separate variables for the open and closed porosity components, conducting a routine for the open and closed porosity components that processes the current state of the fuel and updates the current state and forces of each of the open and closed porosity components, and combining the updates for the current state and forces according to a weighting; and estimate the creep and swelling behavior of a cladding.