The present invention relates to a method of manufacturing a cooling device using a heat pipe in which, using casting, the heat pipe is embedded inside a housing, and the method includes a filling step in which a predetermined support member is filled inside a pipe to prevent deformation of the pipe by a pressure of a melt being injected into a cavity of a mold that is closeable, a pipe seating step in which the pipe filled with the predetermined support member is seated in the cavity, a melt injecting step in which the melt is injected into the cavity to surround the pipe, a cooling and withdrawing step in which the injected melt is cooled and a molded product is withdrawn, an injecting step in which a working fluid is injected into the pipe through an injection end, and a finishing step in which, after the injecting step, the pipe is sealed.

A system and method for inductive heating of dispersed metallic particles is provided. The method includes: providing a particle-laden flow comprising a carrier phase comprising a carrier fluid and a dispersed phase comprising the dispersed metallic particles; exposing the dispersed metallic particles to a magnetic field for heating the dispersed metallic particles via at least one of hysteresis and Joules heating mechanisms; inductively heating the dispersed metallic particles in the particle-laden flow via the magnetic field; and controlling a flow configuration of the particle-laden flow by adjusting a flow parameter, the flow parameter being any one or more of an induction heating timescale, a particle thermal timescale, a heat diffusion in the carrier phase, and a particle clustering of the dispersed metallic particles.

An integrated wind and solar solution is provided, including a solar energy collection assembly (100) and a vertical axis wind turbine (400), combined to provide an integrated power output. In preferred embodiments, the vertical axis wind turbine is positioned above the solar energy collection assembly. Concentrating solar mirror collectors (116) are used to direct sunlight to a heat engine (250), which converts the collected heat energy into rotary motion. Rotary motion from the heat engine and from the vertical axis wind turbine preferably are on the same rotating axis (600), to facilitate load sharing between these two sources. A dual axis azimuth-altitude solar panel alignment tracking system is used in order to boost the energy conversion capability of the solar energy collectors.

A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.

A complex energy generation device includes: a heat storage tube having an inlet portion into which heat medium oil flows, and an outlet portion from which the heat medium oil is discharged, the heat storage tube having a slit; a heat-exchange plate having a plurality of insertion holes formed on a lower surface thereof along a longitudinal direction thereof; a plurality of solar modules each including a solar panel having a plurality of solar cells on a front surface of the solar panel, and a heat-exchange panel laminated on a rear surface of the solar panel; and a plurality of heat collection modules each including a heat-exchange block and a heat collection tube.

A solar collector has an opaque cover heated by solar energy. Heat flows from the opaque cover by conduction, convection, and infrared emittance across a gap within an at least substantially airtight enclosure to an absorber containing a working fluid. The exterior surface of the opaque cover has high solar energy absorptance and the interior surface has high infrared emittance. The exterior surface preferably has low infrared emittance. In one embodiment, fully wetted surface geometry permits direct and reflected infrared absorption by the absorber. The opaque cover eliminates the weight, cost and other shortcomings of glass. A hollow continuous side wall with rounded corners provides an embodiment that is robust yet economical, that is easy to manufacture and seal, that permits a reduced thickness of the opaque cover and mitigates the destructive potential of severe winds, and that can withstand the compressive forces experienced by an evacuated solar collector.

Solar thermal units and methods of operating solar thermal units for the conversion of solar insolation to thermal energy are provided. In some examples, solar thermal units have an inlet, and a split flow of heat absorbing fluid to either side of the solar thermal unit, along a first fluid flow path and a second fluid flow path. Optionally, one or more photovoltaic panels can be provided as part of the solar thermal unit, which may convert solar insolation to electric power that may be used by a system connected to the solar thermal unit.

The invention provides a light-concentrating anti-frost anti-heave heat gathering device and subgrade thereof. The device comprises a light concentrator mounted outside a subgrade; and a heat gathering tube comprising a heat absorption section and a heat release section in communication, the heat absorption section is inserted inside the light concentrator for transferring absorbed heat to the heat release section, the heat release section is inserted inside the subgrade for heating the subgrade, the light concentrator is configured to focus sunlight to and heat the heat absorption section. The heat gathering device herein takes advantage of solar energy resources, by smoothly heating the ground temperature field of the subgrade, and regulating the frost-heaving portions of the subgrade, balanced and smooth heating of the subgrade can be achieved and engineering diseases such as frost heave and uneven fluctuation of the subgrade in the seasonally frozen ground region can be effectively avoided.

The invention provides an unpowered anti-frost anti-heave heat gathering device and subgrade thereof, comprising a solar heat absorber, a circulating tube, a transducer, and a heat gathering tube, wherein the solar heat absorber and the transducer are connected by the circulating tube to form a circulation loop, through which a liquid state circulating working medium flows, the solar heat absorber is configured to absorb solar energy and transfer heat to the transducer through the liquid state circulating working medium, the heat gathering tube comprises a heat absorption section and a heat release section in communication, the heat absorption section is inserted into the transducer for absorbing heat from the transducer and transferring heat to the heat release section, and the heat release section is inserted into a subgrade for heating the subgrade.

An air self-circulation unpowered heating device includes a heat collection header mounted outside a subgrade, a solar heat absorption box having one end inserted into the heat collection header for absorbing solar energy and transferring heat to the heat collection header, and a heat gathering tube comprising a heat absorption section and a heat release section in communication. The heat absorption section is inserted into the heat collection header for absorbing heat of the heat collection header and transferring heat to the heat release section, and the heat release section is inserted into the subgrade for heating the subgrade.