A system for cooling particulates includes a gasifier, a particulate cooler, an elongated shell, a shell side particulate inlet, a tube side fluid inlet, a tube bundle, a coolant outlet, one or more upper aeration nozzles, and one or more lower aeration nozzles. The tube bundle has a plurality of tubulars. The upper aeration nozzles are located within the shell and direct a first aeration gas toward the tube bundle and the lower aeration nozzles are disposed on a sidewall or a narrowing member or the shell and direct a second aeration gas toward a particulate outlet. A related method uses the described system.

Methods and devices for long-duration electricity storage using low-cost thermal energy storage and high-efficiency power cycle, are disclosed. In some embodiments it has the potential for superior long-duration, low-cost energy storage.

The present disclosure relates to particle-based thermal energy storage (TES) systems employed for the heating and cooling applications for residential and/or commercial buildings. Particle-based TES systems may store thermal energy in the particles during off-peak times (i.e., when electricity demand and/or costs are relatively low) and remove the stored thermal energy for heating or cooling applications for buildings during peak times (i.e., when electricity demand and/or costs are relatively high).

The present disclosure relates to particle-based thermal energy storage (TES) systems employed for the heating and cooling applications for residential and/or commercial buildings. Particle-based TES systems may store thermal energy in the particles during off-peak times (i.e., when electricity demand and/or costs are relatively low) and remove the stored thermal energy for heating or cooling applications for buildings during peak times (i.e., when electricity demand and/or costs are relatively high).

The present invention provides a tri-piece thermal energy body heat exchanger having multi-layer pipeline and transferring heat to exterior through outer periphery of pipeline, which is configured by multiple layers of pipelines sleeved with each other, the fluid in the outer layer pipeline covers the inner layer pipeline for exchanging heat with the fluid in the inner layer pipeline, and the fluid in the outer layer pipeline is further used for transferring heat to the solid or fluid state thermal energy body which is in contact with the outer periphery of the outer layer pipeline, thereby forming a three-layer annular tri-piece thermal energy body heat exchanger.

The present disclosure discloses a fluidized bed cooler with regional coordination enhancement, comprising a shell, a catalyst inlet, an interior of the shell is divided into a catalyst inlet influence region, a dilute phase region, a dense phase region and a gas distributor influence region; a catalyst inlet inclined tube is provided obliquely upward at the catalyst inlet, and a regional particle distributor is provided at the catalyst inlet; the dense phase region is provided with a plurality of dense phase baffle plates, and the dilute phase region is provided with a plurality of dilute phase baffle plates; and the gas distributor influence region is provided with double gas distributors. The fluidized bed cooler simultaneously well solves the low internal stability and the low heat exchange efficiency of the fluidized bed cooler, thereby realizing the stable and efficient operation of the fluidized bed cooler.

The present disclosure describes heat exchangers for converting thermal energy stored in solid particles to electricity. Electro-thermal energy storage converts off-peak electricity into heat for thermal energy storage, which may be converted back to electricity, for example during peak-hour power generation. The heat exchanger for converting thermal energy stored in solid particles to electricity enables the conversion of thermal energy into electrical energy for redistribution to the grid. In some embodiments, pressurized fluidized-bed heat exchangers may achieve efficient conversion of thermal energy to electricity by providing direct contact of the solid particles with a gas stream.

An apparatus for the accumulation and transfer of thermal energy is disclosed including a thermal energy charging device having a bed of fluidizable solid particles received within a casing and acting as heat accumulation means by being exposed to a thermal energy source, heat exchange means operating in counter-current, configured for an exchange of thermal energy between a heated vector mass of the bed particles and an operative fluid, transport means configured for feeding the vector mass of the bed particles from the device to the heat exchange means and for returning part of the vector mass, downstream the heat exchange means, to the device, and a control unit associated with parameter detecting means arranged selected locations of the apparatus to control the flow of the vector mass within the apparatus.

An apparatus for the accumulation and transfer of thermal energy is disclosed including a thermal energy charging device having a bed of fluidizable solid particles received within a casing and acting as heat accumulation means by being exposed to a thermal energy source, heat exchange means operating in counter-current, configured for an exchange of thermal energy between a heated vector mass of the bed particles and an operative fluid, transport means configured for feeding the vector mass of the bed particles from the device to the heat exchange means and for returning part of the vector mass, downstream the heat exchange means, to the device, and a control unit associated with parameter detecting means arranged selected locations of the apparatus to control the flow of the vector mass within the apparatus.

Methods and devices for long-duration electricity storage using low-cost thermal energy storage and high-efficiency power cycle, are disclosed. In some embodiments it has the potential for superior long-duration, low-cost energy storage.