Thermal energy storage systems with an energy emitting surface
AssigneeRondo Energy, Inc.
InventorsJohn Setel O'Donnell, Yusef Desjardins Ferhani
Life of this patent
Estimating the term…
Abstract
An energy storage system (TES) converts variable renewable electricity (VRE) to continuous heat at over 900° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. Heat may be delivered by radiation from one or more emitting surfaces of the solid medium. The delivered heat may be used for processes including power generation, cogeneration, or an industrial process.
Claims29
An electrically heated thermal energy storage (TES) system including:
- a TES medium having at least one radiant energy emitting surface;
- a heater for providing thermal energy to the TES medium for storage;
- at least one radiant energy receiving structure configured to receive radiant energy from the emitting surface;
- and
- a heat extraction system for directing a fluid through the TES medium and towards the emitting surface configured to reheat the emitting surface to a temperature within a set temperature range,
- wherein the TES system is configured to maintain the emitting surface in predetermined temperature range during operation by delivering heat via a combination of convection and radiation heat transfer from the TES medium to the emitting surface, and
- a heat exchanger configured to receive a flow of fluid that has contributed heat to the emitting surface.
An electrically heated thermal energy storage (TES) system including:
- a TES medium having at least one radiant energy emitting surface;
- a heater for providing thermal energy to the TES medium for storage;
- at least one radiant energy receiving structure configured to receive radiant energy from the emitting surface;
- and
- a heat extraction system for directing a fluid through the TES medium and towards the emitting surface configured to reheat the emitting surface to a temperature within a set temperature range,
- wherein the TES system is configured to maintain the emitting surface is in a predetermined temperature range during operation by delivering heat via a combination of convection and radiation heat transfer from the TESstorage medium to the emitting surface, and
- a heat exchanger configured to receive a flow of fluid that has contributed heat to the emitting surface;
- wherein the at least one radiant energy receiving structure includes a thermal photovoltaic device.
A method for an electrically heated thermal energy storage (TES) system including:
- providing a TES medium having at least one radiant energy emitting surface;
- using a heater to deliver thermal energy to the TES medium for storage;
- using at least one radiant energy receiving structure to receive the radiant energy from the emitting surface;
- using a heat extraction system to direct a fluid through the TES medium and towards the emitting surface configured to reheat the emitting surface to a temperature within a set temperature range;
- maintaining the emitting surface of the TES medium in a predetermined temperature range during operation by delivering heat via a combination of convection and radiation heat transfer through the TES medium to the emitting surface, and
- using a heat exchanger to receive a flow of fluid that has contributed heat to the emitting surface.
Dependencies are inferred from the claim text.