Title: Chemical looping fluidized-bed concentrating solar power system and method

Abstract

A concentrated solar power (CSP) plant comprises a receiver configured to contain a chemical substance for a chemical reaction and an array of heliostats. Each heliostat is configured to direct sunlight toward the receiver. The receiver is configured to transfer thermal energy from the sunlight to the chemical substance in a reduction reaction. The CSP plant further comprises a first storage container configured to store solid state particles produced by the reduction reaction and a heat exchanger configured to combine the solid state particles and gas through an oxidation reaction. The heat exchanger is configured to transfer heat produced in the oxidation reaction to a working fluid to heat the working fluid. The CSP plant further comprises a power turbine coupled to the heat exchanger, such that the heated working fluid turns the power turbine, and a generator coupled to and driven by the power turbine to generate electricity.

Inventors:

Ma, Zhiwen

Issue Date:

2017-07-11

Research Org.:

National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1369222

Patent Number(s):

9702348

Application Number:

14/243,775

Assignee:

Alliance for Sustainable Energy, LLC

Patent Classifications (CPCs):

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01K - STEAM ENGINE PLANTS

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C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B13/08 - from air with the aid of metal oxides, e.g. barium oxide, manganese oxide {

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01K - STEAM ENGINE PLANTS

F01K23/06 - combustion heat from one cycle heating the fluid in another cycle

F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03G - SPRING, WEIGHT, INERTIA OR LIKE MOTORS

F03G6/064 - {having a gas turbine cycle, i.e. compressor and gas turbine combination}
F03G6/067 - {using an intermediate fluid for heat transfer}

F - MECHANICAL ENGINEERING F24 - HEATING F24S - SOLAR HEAT COLLECTORS

F24S20/20 - Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants

F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT

F28D20/003 - {using thermochemical reactions}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E10/40 - Solar thermal energy
Y02E10/46 - Conversion of thermal power into mechanical power, e.g. Rankine, Stirling solar thermal engines
Y02E20/16 - Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Y02E60/14 - Thermal storage
Y02E70/30 - Systems combining energy storage with energy generation of non-fossil origin

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

Y02P20/133 - Renewable energy sources

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DOE Contract Number:  

AC36-08GO28308

Resource Type:

Patent

Resource Relation:

Patent File Date: 2014 Apr 02

Country of Publication:

United States

Language:

English

Subject:

14 SOLAR ENERGY