A solar energy collector includes: a solar energy collection tube having an absorption medium flow path for allowing an absorption medium to flow therethrough; a lens configured to concentrate solar energy on the solar energy collection tube; and an actuator configured to move the solar energy collection tube or the lens based on an incidence angle of the solar energy so that the solar energy is focused on the solar energy collection tube.

A solar collector 1 for the temporary storage of heat from solar radiation comprising a radiation conductor 8, 9 for conducting the solar radiation, and lens means 7 for concentrating solar radiation onto a first extremity of the radiation conductor. A thermally-insulated core 2 is provided on an opposite second extremity of the radiation conductor 8, 9 in order to be heated by the solar radiation released from the radiation conductor and temporarily storing the heat. For this purpose, the core is provided with an insulated casing 4, virtually completely enveloping the core, which insulated casing 4 comprises a layer of porous ceramic material.

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.

An air curtain control system for a solar thermal receiver comprising: at least one air jet (505) arranged to produce a continuous planar air curtain (507) over at least a portion of a receiver aperture 509 of a solar thermal receiver, an air flow control device (517) for controlling a speed of air flow out of the air jet (505), at least one angular control device (503) for controlling an angle of the air curtain (507) relative to the receiver aperture 509, and a system controller (501) arranged to control the air flow control device (517) and angular control device (503) to isolate the receiver aperture (509) from ambient elements external to the receiver aperture (509).

A device for thermal separation between a conditioned environment and at least one external environment, which comprises a wall that has at least a first active layer-like region toward the conditioned environment, a second active layer-like region toward the external environment with respect to the first active layer-like region, a first insulating layer-like region, which is interposed between the active layer-like regions, a second insulating layer-like region, which is interposed between the second active layer-like region and the external environment. The active layer-like regions accommodate channels for the outflow of heat transfer fluids, which have, during the operation of the thermal separation device, temperatures that on average are different through the thickness of the wall.

A solar thermal collector and an accessory structure of a building are provided. The solar thermal collector includes at least one heat absorbing plate and at least one heat insulating plate. Each of the heat absorbing plate includes at least one first slab and first engaging parts connected with the first slab. Each of the heat insulating plate includes at least one second slab and second engaging parts connected with the second slab. The first engaging parts are respectively engaged with the second engaging parts, and a gap is maintained between the first slab and the second slab to define a heat collecting channel, through which a heat transfer fluid flows between the heat absorbing plate and the heat insulating plate. A heat conductivity of the heat absorbing plate is at least 30 times greater than a heat conductivity of the heat insulating plate.

The present invention relates to SNS-595 and methods of treating cancer using the same.

A solar collector is provided. The collector comprises a monolithic flow control component to direct a flow of the heat transfer fluid between an inlet and outlet; and a solar absorber supported by the monolithic flow control component. The monolithic flow control component is able to support the solar absorber without any additional structural components to lend mechanical strength to the monolithic flow control component.

A solar collector is provided. The collector comprises a monolithic flow control component to direct a flow of the heat transfer fluid between an inlet and outlet; and a solar absorber supported by the monolithic flow control component. The monolithic flow control component is able to support the solar absorber without any additional structural components to lend mechanical strength to the monolithic flow control component.

A hardened solar thermal energy collector (STEC) system that is adapted to withstand a nuclear detonation or other powerful explosion in the vicinity. The STEC system comprises a plurality of collector tubes arranged side by side in an array that carry and circulate a working fluid, each of the plurality of collecting tubes having an upper radiation collection surface having a diffractive optical structure and a bottom surface, a supporting tray upon which each of the collector tubes is securely mounted, an insulated housing set beneath a ground surface level enclosing the plurality of collector rubes and supporting trays, and a secured underground geothermal storage unit fluidly coupled to the array of collector tubes. The housing, the plurality of collector tubes, and the tray are positioned such that topmost portions thereof are at the ground surface level or below.