Provided are solar collection energy storage and energy conversion or chemical conversion systems. Also provided are tubing components, such as for solar receivers, including Mo and having a MoSiB coating on an external surface. The systems can include a solar receiver containing a heat transfer material or chemically reacting material and can operate at temperatures of 700° C. or higher. The solar receiver can include tubing components selected from a Mo tubing component, a MAX phase material tubing component, a MoSiB composite tubing component, or a combination thereof. The Mo component, when present, can include a coating on surfaces of the Mo component that operate above 700° C.

Provided are solar collection energy storage and energy conversion or chemical conversion systems. Also provided are tubing components, such as for solar receivers, including Mo and having a MoSiB coating on an external surface. The systems can include a solar receiver containing a heat transfer material or chemically reacting material and can operate at temperatures of 700° C. or higher. The solar receiver can include tubing components selected from a Mo tubing component, a MAX phase material tubing component, a MoSiB composite tubing component, or a combination thereof. The Mo component, when present, can include a coating on surfaces of the Mo component that operate above 700° C.

The solar thermal collection and radiant heating system for a spa comprising upper and lower absorber members having fluid passageways and in thermal communication, a skin member encasing said upper and lower absorber members and an insulative member located therebetween the upper and lower members and a solar collection device located on the skin member.

The present disclosure is directed to systems and methods to control particle mass flow rate in solar receivers and associated heat exchangers based on feedback from one or more temperatures of particles in the system.

Disclosed is a device with a heat exchanger having a first flow through which a first gaseous heat transfer medium passes and a second flow through which a second gaseous heat transfer medium passes. Upstream of the first flow, there is a combustion chamber, which optionally extends into the first flow. Two feed lines are attached to the first flow, of which the first feed line is connected to a thermal solar installation and the second feed line is connected to a source for a combustible gas-air mixture or for a non-combustible gas, in particular an oxygen-containing gas, such as air.

Disclosed is a device with a heat exchanger having a first flow through which a first gaseous heat transfer medium passes and a second flow through which a second gaseous heat transfer medium passes. Upstream of the first flow, there is a combustion chamber, which optionally extends into the first flow. Two feed lines are attached to the first flow, of which the first feed line is connected to a thermal solar installation and the second feed line is connected to a source for a combustible gas-air mixture or for a non-combustible gas, in particular an oxygen-containing gas, such as air.

The present invention relates to a solar collector (1) comprising a containment structure (6) with at least one face exposed to solar radiation, said containment structure (6) comprising a central housing recess (7) and an outer edge (8) that surrounds said central housing recess (7), inside said central recess (7) a primary conduit being arranged for the circulation of a primary heat transfer fluid, exposed to solar radiation, a secondary conduit for the circulation of a secondary fluid, and a heat exchange area between said primary and secondary conduit for the heat exchange between the primary heat transfer fluid and the secondary fluid, said solar collector (1) being characterized in that in at least one portion of said outer edge (8) of the containment structure (6) at least one dissipation conduit (9) is obtained in fluid communication with said primary conduit to dissipate the excess heat to outside said solar collector (1).

The present invention relates to a solar collector (1) comprising a containment structure (6) with at least one face exposed to solar radiation, said containment structure (6) comprising a central housing recess (7) and an outer edge (8) that surrounds said central housing recess (7), inside said central recess (7) a primary conduit being arranged for the circulation of a primary heat transfer fluid, exposed to solar radiation, a secondary conduit for the circulation of a secondary fluid, and a heat exchange area between said primary and secondary conduit for the heat exchange between the primary heat transfer fluid and the secondary fluid, said solar collector (1) being characterized in that in at least one portion of said outer edge (8) of the containment structure (6) at least one dissipation conduit (9) is obtained in fluid communication with said primary conduit to dissipate the excess heat to outside said solar collector (1).

A liquid-gas heat exchanger for use in a heat exchange system using solar energy has an insulated chamber adapted to allow hot air to pass therethrough. A coil member extends through the insulated chamber and is adapted to allow a heat transfer liquid to pass into and then out of the insulated chamber. The spacing between the windings of the coil are predefined and the coil is in a predetermined position inside the insulated chamber, so as to force the air to pass in between the coil windings and increase the air contact with the coil and provide a large heat exchange. Several baffle members are placed each side of the coil member and an interior area of the insulated chamber and force air to circulate multiple times through the coil member, thereby allowing for an efficient exchange from the hot air to the heat transfer liquid. The insulated containe contains the heat exchanger which is comprised of a plurality of chambers, wherein each the plurality of chambers has a repeating pattern of shapes wherein each of the chamber of th plurality of charribers consists of one deflector which deflector being opposite to another deflector, which other deflector is a mirror image of its opposite deflector but shifted approximately half a the wall length. Each of the deflectors is defined by a specific sequence of components starting with a rounded wall from which extends a shear barrier and the wall is terminated by a diverter.

A liquid-gas heat exchanger for use in a heat exchange system using solar energy has an insulated chamber adapted to allow hot air to pass therethrough. A coil member extends through the insulated chamber and is adapted to allow a heat transfer liquid to pass into and then out of the insulated chamber. The spacing between the windings of the coil are predefined and the coil is in a predetermined position inside the insulated chamber, so as to force the air to pass in between the coil windings and increase the air contact with the coil and provide a large heat exchange. Several baffle members are placed each side of the coil member and an interior area of the insulated chamber and force air to circulate multiple times through the coil member, thereby allowing for an efficient exchange from the hot air to the heat transfer liquid. The insulated containe contains the heat exchanger which is comprised of a plurality of chambers, wherein each the plurality of chambers has a repeating pattern of shapes wherein each of the chamber of th plurality of charribers consists of one deflector which deflector being opposite to another deflector, which other deflector is a mirror image of its opposite deflector but shifted approximately half a the wall length. Each of the deflectors is defined by a specific sequence of components starting with a rounded wall from which extends a shear barrier and the wall is terminated by a diverter.