A solar system is provided comprising a light receiving surface, a condensation subassembly, a water collection subassembly, and a cleaning subassembly. The expansion chamber of the condensation subassembly is thermally coupled to the light receiving surface and thermally insulated from the ambient such that expansion of compressed air in the expansion chamber, as controlled by the compressed air expansion valve, encourages humidity condensation on the light receiving surface by reducing the temperature of the light receiving surface. The water collection subassembly comprises a water collection vessel and water direction hardware positioned to direct condensed water on the light receiving surface to the water collection vessel. The cleaning subassembly comprises a water dispensing unit positioned to dispense water from the water collection vessel over the light receiving surface of the solar system.

According to one embodiment, a substrate treatment device includes a placement stand configured to rotate a substrate, a cooling part configured to supply a cooling gas into a space between the placement stand and the substrate, a liquid supplier configured to supply a liquid on a surface of the substrate opposite to the placement stand side, a detector configured to detect a state of the liquid on the surface of the substrate, and a controller controlling at least one of a rotation speed of the substrate, a flow rate of the cooling gas, or a supply amount of the liquid. The controller sets the liquid on the surface of the substrate to be in a supercooled state, obtains a temperature of the liquid in the supercooled state at a start of freezing, and is configured to calculate a removal ratio of a contamination.

A method for cleaning a food waste recycling bin of a food waste recycling appliance includes maintaining between a lower portion and an upper portion of the food waste recycling bin a temperature differential sufficient such that water vapor is emitted from waste located in the lower portion of the food waste recycling bin.

According to one embodiment, a method for cleaning a substrate includes first cleaning process and second cleaning process. The first cleaning process subjects a substrate to a first cleaning method. The second cleaning process subjects the substrate to a second cleaning method that is different from the first cleaning method and is subsequent to the first cleaning process. The first cleaning method includes at least one of acidic cleaning or alkaline cleaning. The second cleaning method includes freeze cleaning.

A substrate treatment device according to an embodiment includes a placement portion on which a substrate is placed and rotated, a liquid supply portion which supplies a liquid to a surface on an opposite side to the placement portion of the substrate, a cooling portion which supplies a cooling gas to a surface on a side of the placement portion of the substrate, and a control portion which controls at least one of a rotation speed of the substrate, a supply amount of the liquid, and a flow rate of the cooling gas. The control portion brings the liquid present on a surface of the substrate into a supercooled state and causes at least a part of the liquid brought into the supercooled state to freeze.

A method for cleaning a food waste recycling bin of a food waste recycling appliance includes maintaining between a lower portion and an upper portion of the food waste recycling bin a temperature differential sufficient such that water vapor is emitted from waste located in the lower portion of the food waste recycling bin.

Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, and in particular, relate to an apparatus and method for scanning the microelectronic substrate through a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. In one embodiment, the process conditions may be varied between subsequent treatments of a single substrate to target different types of particles with each treatment.

A cleaning appliance for blasting surfaces to be treated with a mixed stream of a pressurized gas and CO.sub.2 pellets is disclosed and includes an apparatus for producing CO.sub.2 pellets from liquid or gaseous CO.sub.2, wherein the apparatus includes a compressing device for compressing CO.sub.2 snow to form the CO.sub.2 pellets, wherein the compressing device includes an expansion device for creating CO.sub.2 snow by expanding liquid or pressurized CO.sub.2, wherein the expansion device includes an expansion chamber with an expansion chamber inlet, wherein the cleaning appliance includes a CO.sub.2 connection line that is fluidically connected to the expansion chamber inlet for supplying the liquid or gaseous CO.sub.2 to the expansion device, and wherein the cleaning appliance includes a cooling device for cooling the CO.sub.2 connection line.

A pulse jet liquid gas cleaning system has an ultrasonic transducer operable to transform a high-pressure stream of cryogenic fluid from a cryogenic fluid supply into pulsed jets of individual cryogenic fluid slugs.

The invention relates to an apparatus for producing CO.sub.2 pellets from CO.sub.2 snow, in particular, for a cleaning device for spraying surfaces to be treated with a mixed stream of a pressurized gas and CO.sub.2 pellets, includes a compressor device for compressing CO.sub.2 snow to form CO.sub.2 pellets. The compressor device includes a gear compressor. The gear compressor includes at least one compressor wheel which is mounted rotatable about a first rotation axis and has a plurality of compressing elements, and includes at least one intake wheel which has a plurality of snow intakes for accepting CO.sub.2 snow. The snow intakes are configured corresponding to the compressing elements. The intake wheel is mounted rotatable about a second rotation axis and cooperates with the at least one compressor wheel. The intake wheel includes an intake wheel sleeve with an intake wheel sleeve wall.