Technologies are disclosed herein for a thin heat exchanger through which coolant may be pumped. The heat exchanger may include an envelope and a heat conduction layer provided over the envelope. The envelope may include one or more channels formed therein. The channels formed between the envelope and the conduction layer may extend the length of the heat exchange layer and be configured to carry coolant therethrough. The heat exchange layer may include an inlet manifold on a first end and an outlet manifold on another end opposing the first end. The inlet manifold may allow the flow of coolant into the heat exchange layer and the outlet manifold may allow the removal of the coolant from the heat exchange layer. Coolant flow may be controlled by a suction pump operating under computer control based at least in part on sensor data.

A cladding panel that collects and/or emits thermal energy, which includes: a first panel; a second panel with an extrados adhered to an intrados of the first panel, forming a leaktight seal, with a low-relief channel, the channel being attached to the intrados of the first panel to form a conduit; an inlet connector for heat-conducting fluid, connected to a first end of the channel; and an outlet connector for heat-conducting fluid, connected to a second end of the channel, wherein the first panel is made of calibrated laminated ceramic with a flat, smooth intrados and a flat, smooth extrados and has a uniform thickness of 3-6 mm, and the second panel is made of waterproof heat-insulating plastic that is stable up to 120 C.

A solar thermal energy device is provided. Also provided is a method of making a solar thermal energy device.

A solar thermal energy device is provided. Also provided is a method of making a solar thermal energy device.

The present invention relates to a solar selective coating for a metal substrate comprising at least one absorber layer and at least one semi-absorber layer selected from the structures of AlTiN and AlTiSiN. In preferred embodiments, the solar selective coating according to the present invention is a double layer coating with AlTiN-AlTiN or AlTiSiN-AlTiSiN formation. The process for producing the coating includes a step of treatment of the metal substrate with a reactive magnetron sputtering system.

A method of manufacturing a solar heat collection pipe includes an inner circumferential film forming step of forming an antireflection film on an inner surface of a glass pipe and an outer circumferential film forming step of forming an antireflection film on an outer surface of the glass pipe. These film forming steps are performed so that a part of a coating film through which a coating material is flowed when the coating material is discharged from the glass pipe in a coating material discharging step of the inner circumferential film forming step and a part of a coating film with which the coating material is in contact when the glass pipe is lifted from the coating material in a lifting step of the outer circumferential film forming step are positioned within a half circumference of the glass pipe in a circumferential direction of the glass pipe.

A method of manufacturing a solar heat collection pipe includes an inner circumferential film forming step of forming an antireflection film on an inner surface of a glass pipe and an outer circumferential film forming step of forming an antireflection film on an outer surface of the glass pipe. These film forming steps are performed so that a part of a coating film through which a coating material is flowed when the coating material is discharged from the glass pipe in a coating material discharging step of the inner circumferential film forming step and a part of a coating film with which the coating material is in contact when the glass pipe is lifted from the coating material in a lifting step of the outer circumferential film forming step are positioned within a half circumference of the glass pipe in a circumferential direction of the glass pipe.

The present disclosure provides a solution-processed selective solar absorption coating and a process for the preparation thereof.

The present disclosure provides a solution-processed selective solar absorption coating and a process for the preparation thereof.

The invention relates to a method for forming a layer of single-phase oxide (30) (Fe, Cr).sub.2O.sub.3 with a rhombohedral structure on a steel or super alloy substrate (10), comprising the following successive steps: a) supplying a steel or super alloy substrate (10) covered with a surface layer, the steel comprising at least 2 wt.-% chromium; b) removing the surface layer in an atomsphere containing at least 0.2 atm dioxygen, creating a level of micro-deformation in the crystal lattice of the steel or super alloy that is greater than 1.0.10.sup.3, and a heating at a heating rate higher than 400 C./s, such as to form a layer of rhombohedral oxide (30) (Fe, Cr).sub.2O.sub.3, c) carrying out a thermal treatment, in the presence of air, at a water partial pressure of less than 10.000 ppm, and at a temperature varying between 400 C. and 1000 C., such as to grow the layer of rhombohedral oxide formed in step (b) to a thickness from 70 nm to 150 nm.