A method and apparatus for separating a separation component from a gas stream. One exemplary method includes: flowing the gas stream across a process surface of a compliant composite heat transfer wall, wherein: the gas stream has an initial concentration of the separation component, and the gas stream has a gas temperature; flowing a cooling fluid across a cooling surface of the wall, wherein: the cooling fluid has a fluid temperature, and the fluid temperature is less than the gas temperature; and producing an output gas stream, wherein: the output gas stream has an output concentration of the separation component, and the output concentration is less than the initial concentration. Another exemplary method includes separating at least a portion of the separation component from the gas stream by: accumulating the portion proximate the process surface; and delaminating the portion from the process surface with a flow of the gas stream.

A highly thermally conductive composition is provided, such composition comprising: (A) An organopolysiloxane composition; (B) a filler treating agent; (C) a thermal stabilizer; and (D) thermally conductive filler mixture, comprising: (D-1) a small-particulate thermally conductive filler having a mean size of up to 3 m, (D-2) spherical aluminum nitride having a mean size of from 50 to 150 m, (D-3) boron nitride having a mean size of from 20 to 200 m.

A highly thermally conductive composition is provided, such composition comprising: (A) An organopolysiloxane composition; (B) a filler treating agent; (C) a thermal stabilizer; and (D) thermally conductive filler mixture, comprising: (D-1) a small-particulate thermally conductive filler having a mean size of up to 3 m, (D-2) spherical aluminum nitride having a mean size of from 50 to 150 m, (D-3) boron nitride having a mean size of from 20 to 200 m.

A system for heat transfer including a compressor, a regolith inlet, a first storage hopper, and a load. The compressor is in fluid communication with a closed loop system. The regolith inlet is in fluid communication with the closed loop system. The first storage hopper is adapted to carry an amount of regolith and is in fluid communication with the regolith inlet. The load is in fluid communication with the closed loop system between a compressor inlet a compressor outlet.

A system for heat transfer including a compressor, a regolith inlet, a first storage hopper, and a load. The compressor is in fluid communication with a closed loop system. The regolith inlet is in fluid communication with the closed loop system. The first storage hopper is adapted to carry an amount of regolith and is in fluid communication with the regolith inlet. The load is in fluid communication with the closed loop system between a compressor inlet a compressor outlet.

The present disclosure generally provides an oscillating heat pipe, wherein the oscillating heat pipe comprises a 3-phase working fluid that includes at least one liquid phase portion, at least one vapor phase portion, and at least one solid phase portion, wherein in addition to a phase change between liquid and vapor, there is also a phase change from solid to liquid during a heat transfer process involving the oscillating heat pipe.

The present disclosure generally provides an oscillating heat pipe, wherein the oscillating heat pipe comprises a 3-phase working fluid that includes at least one liquid phase portion, at least one vapor phase portion, and at least one solid phase portion, wherein in addition to a phase change between liquid and vapor, there is also a phase change from solid to liquid during a heat transfer process involving the oscillating heat pipe.

A perfluorinated 1-alkoxypropene represented by general Formula (I), compositions that include such compounds, and methods and systems that include such compositions are provided, wherein Formula (I) is represented by: R.sub.fOCFCFCF.sub.3 wherein R.sub.f is a linear, branched, or cyclic perfluoroalkyl group having 2 to 10 carbon atoms and optionally further including 1 to 3 nitrogen and/or 1 to 4 oxygen catenary heteroatoms.

A perfluorinated 1-alkoxypropene represented by general Formula (I), compositions that include such compounds, and methods and systems that include such compositions are provided, wherein Formula (I) is represented by: R.sub.fOCFCFCF.sub.3 wherein R.sub.f is a linear, branched, or cyclic perfluoroalkyl group having 2 to 10 carbon atoms and optionally further including 1 to 3 nitrogen and/or 1 to 4 oxygen catenary heteroatoms.

Heat transfer/storage fluids that are resistant to oxidation in air at elevated temperatures, and systems that utilize such heat transfer/storage fluids, for example, as part of a concentrating solar power (CSP) system or other electricity-generating systems. The heat transfer/storage fluid is a molten chloride solution comprising two or more chlorides selected from the group consisting of CaCl.sub.2, SrCl.sub.2, BaCl.sub.2, NaCl, and KCl.