Method, system, and apparatus for the thermal storage of nuclear reactor generated energy

Patent metadata

Field	Value
Publication number	US-11205523-B2
Application number	US-202016741307-A
Country	US
Kind code	B2
Filing date	Jan 13, 2020
Priority date	Feb 18, 2010
Publication date	Dec 21, 2021
Grant date	Dec 21, 2021

Abstract

A method, system, and apparatus for the thermal storage of nuclear reactor generated energy including diverting a selected portion of energy from a portion of a nuclear reactor system to an auxiliary thermal reservoir and, responsive to a shutdown event, supplying a portion of the diverted selected portion of energy to an energy conversion system of the nuclear reactor system.

First claim

The invention claimed is:

1. A method, comprising:
providing a first portion of energy from at least one nuclear reactor of a nuclear reactor system to at least one energy conversion system;
diverting a selected portion of energy from the at least one nuclear reactor to at least one auxiliary thermal reservoir, the selected portion of energy exceeding operational demand of the at least one energy conversion system; and
storing the diverted selected portion of energy in the at least one auxiliary thermal reservoir in the form of a phase change in at least one heat storage material of the at least one auxiliary thermal reservoir.

2. The method of claim 1 , further comprising responsive to a signal regarding a shutdown event, supplying at least a portion of the diverted selected portion of energy to the at least one energy conversion system.

3. The method of claim 1 , wherein the diverting the selected portion of energy from the portion of the at least one nuclear reactor is performed while operating the nuclear reactor at operating temperature.

4. The method of claim 1 , further comprising:
determining that energy production by the at least one energy conversion system exceeds current grid demand;
converting excess electrical power to thermal energy; and
storing the thermal energy in the at least one auxiliary thermal reservoir in the form of a temperature change or a phase change in the at least one heat storage material of the at least one auxiliary thermal reservoir.

5. The method of claim 1 , further comprising providing at least a portion of the diverted selected portion of energy in the at least one auxiliary thermal reservoir to the at least one energy conversion system when the diverted selected portion of energy does not exceed operational demand of the at least one energy conversion system.

6. The method of claim 1 , further comprising supplementing the at least one auxiliary thermal reservoir with an additional portion of energy from at least one additional energy source.

7. The method of claim 6 , wherein supplementing the at least one auxiliary thermal reservoir with an additional portion of energy from at least one additional energy source comprises increasing a temperature of the heat storage material.

8. The method of claim 1 , wherein the diverting the selected portion of energy from the at least one nuclear reactor comprises responsive to at least one condition, diverting the selected portion of energy from the at least one nuclear reactor to the at least one thermal reservoir.

9. The method of claim 8 , wherein the responsive to at least one condition, diverting the selected portion of energy from the at least one nuclear reactor to the at least one auxiliary thermal reservoir comprises in response to a determination of excess capacity of the at least one nuclear reactor system, diverting the selected portion of energy from the at least one nuclear reactor to the at least one auxiliary thermal reservoir.

10. The method of claim 8 , wherein the responsive to at least one condition, diverting the selected portion of energy from the at least one nuclear reactor to the at least one auxiliary thermal reservoir comprises in response to at least one reservoir operation system of the at least one auxiliary thermal reservoir, diverting the selected portion of energy from the at least one nuclear reactor to the at least one auxiliary thermal reservoir.

11. The method of claim 8 , wherein the responsive to at least one condition, diverting the selected portion of energy from the at least one nuclear reactor to the at least one auxiliary thermal reservoir comprises in response to at least one signal from an operation system of the at least one reservoir of the at least one auxiliary thermal reservoir, diverting the selected portion of energy from the portion of the at least one nuclear reactor to the at least one auxiliary thermal reservoir.

12. The method of claim 1 , wherein the diverting the selection portion of energy from the at least one nuclear reactor to the at least one auxiliary thermal reservoir is in response to a signal from a reservoir operation system of the auxiliary thermal reservoir.

13. The method of claim 1 , wherein the operational demand of the at least one nuclear reactor is reduced in response to a signal from the at least one energy conversion system.

Assignees

• Terrapower Llc

Inventors

• Hyde Roderick A
• Ishikawa Muriel Y
• Tegreene Clarence T
• Walter Joshua C
• Wood Jr Lowell L
• Wood Victoria Y H

Classifications

• F28D20/0056

  using solid heat storage material (F28D20/0052 takes precedence) · CPC title

• F01K3/181

  using nuclear heat (F01K3/26 takes precedence) · CPC title

• F01K3/00

  Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein (regenerating exhaust steam F01K19/00) · CPC title

• G21D3/001 Primary

  Computer implemented control · CPC title

• F28D20/00

  Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 · CPC title