A double point focusing solar energy collection apparatus of the present invention includes a heat collector, a secondary concentrator, and a bracket. The heat collector includes a primary concentrator and a heat collection tube, in which the primary concentrator has a focus point. The secondary concentrator has a focus point. The bracket supports the primary concentrator, the heat collection tube, and the secondary concentrator. The heat collection tube is located between the primary concentrator and the secondary concentrator and located on the focus points of the secondary concentrator and the primary concentrator. By adding the secondary concentrator, which is a rotating paraboloid reflector or circular Fresnel reflector, it can achieve low light loss and high heat collection efficiency, and erosion of the heat collection tube by sand, rain, and snow can be effectively prevented, thereby extending the lifetime of the heat collection tube effectively.

A double point focusing solar energy collection apparatus of the present invention includes a heat collector, a secondary concentrator, and a bracket. The heat collector includes a primary concentrator and a heat collection tube, in which the primary concentrator has a focus point. The secondary concentrator has a focus point. The bracket supports the primary concentrator, the heat collection tube, and the secondary concentrator. The heat collection tube is located between the primary concentrator and the secondary concentrator and located on the focus points of the secondary concentrator and the primary concentrator. By adding the secondary concentrator, which is a rotating paraboloid reflector or circular Fresnel reflector, it can achieve low light loss and high heat collection efficiency, and erosion of the heat collection tube by sand, rain, and snow can be effectively prevented, thereby extending the lifetime of the heat collection tube effectively.

The present invention relates to a solar collector (1) comprising a containment structure (6) with at least one face exposed to solar radiation, said containment structure (6) comprising a central housing recess (7) and an outer edge (8) that surrounds said central housing recess (7), inside said central recess (7) a primary conduit being arranged for the circulation of a primary heat transfer fluid, exposed to solar radiation, a secondary conduit for the circulation of a secondary fluid, and a heat exchange area between said primary and secondary conduit for the heat exchange between the primary heat transfer fluid and the secondary fluid, said solar collector (1) being characterized in that in at least one portion of said outer edge (8) of the containment structure (6) at least one dissipation conduit (9) is obtained in fluid communication with said primary conduit to dissipate the excess heat to outside said solar collector (1).

The present invention relates to a solar collector (1) comprising a containment structure (6) with at least one face exposed to solar radiation, said containment structure (6) comprising a central housing recess (7) and an outer edge (8) that surrounds said central housing recess (7), inside said central recess (7) a primary conduit being arranged for the circulation of a primary heat transfer fluid, exposed to solar radiation, a secondary conduit for the circulation of a secondary fluid, and a heat exchange area between said primary and secondary conduit for the heat exchange between the primary heat transfer fluid and the secondary fluid, said solar collector (1) being characterized in that in at least one portion of said outer edge (8) of the containment structure (6) at least one dissipation conduit (9) is obtained in fluid communication with said primary conduit to dissipate the excess heat to outside said solar collector (1).

Apparatuses and methods for using direct solar radiation. The apparatus may include a housing defining a window configured to transmit solar radiation and a secondary radiation source for transmitting a second radiation in response to the solar radiation via a non-transitory computer-readable medium having computer-readable instructions stored thereon and configured to be executed by a processor to measure the solar radiation and actuate the secondary radiation source.

Apparatuses and methods for using direct solar radiation. The apparatus may include a housing defining a window configured to transmit solar radiation and a secondary radiation source for transmitting a second radiation in response to the solar radiation via a non-transitory computer-readable medium having computer-readable instructions stored thereon and configured to be executed by a processor to measure the solar radiation and actuate the secondary radiation source.

A mobile solar charging facility. The present invention relates to power supply and charging techniques for a mobile electric apparatus during movement, and in particular to such a facility having a combined technique of a solar photovoltaic battery and solar thermal power generation, and matching techniques and extended applications related to light compensation, energy storage, etc. The present invention is aimed at solving the problem of charging an electric vehicle when traveling. A highly cost-effective solar power source is used for power supply. The technical solutions of a contact rail and a collector shoe are used for mobile power supply and charging. An arc extinction circuit and an energy storage super-capacitor are provided in a line, and a safety protection measure is provided. A condenser lens and a compensation lens which can increase a power generation amount and do not need to be tracked as provided for solar power generation.

Systems and methods for radiative cooling and heating are provided. For example, systems for radiative cooling can include a top layer including one or more polymers, where the top layer has high emissivity in at least a portion of the thermal spectrum and an electromagnetic extinction coefficient of approximately zero, absorptivity of approximately zero, and high transmittance in at least a portion of the solar spectrum, and further include a reflective layer including one or more metals, where the reflective layer has high reflectivity in at least a portion of the solar spectrum.

The invention relates to a device for anchoring an inflatable concentrator cushion, which has a light-permeable entry window for coupling in solar radiation and a reflector film, which sub-divides the concentrator cushion into at least two hollow spaces, for the concentration of solar radiation in an absorber, comprising a pivoting apparatus for pivoting the concentrator cushion, in particular about its longitudinal axis, and comprising an anchoring apparatus for the pivoting apparatus.

Inventive concentrated solar power systems using solar receivers, and related devices and methods, are generally described. Low pressure solar receivers are provided that function to convert solar radiation energy to thermal energy of a working fluid, e.g., a working fluid of a power generation or thermal storage system. In some embodiments, low pressure solar receivers are provided herein that are useful in conjunction with gas turbine based power generation systems.