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Solar energy photo-thermal photoelectric frequency division using system

A photothermal photovoltaic, solar energy technology, applied in solar heating systems, solar thermal power generation, solar thermal energy and other directions, can solve the problems of limited temperature of solar thermal units, low temperature waste heat, etc., to improve photothermal conversion efficiency, reduce area, reduce cost effect

Inactive Publication Date: 2015-05-20
TONGJI UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the temperature of the photothermal unit is limited by the photoelectric unit, and only low-temperature waste heat can be generated.

Method used

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  • Solar energy photo-thermal photoelectric frequency division using system

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0026] The present invention proposes a solar thermal photoelectric frequency division utilization system, figure 1 A schematic diagram of the optical path of the system, figure 2 A schematic diagram of the waterway of the system. The system includes a direction control unit, a photothermal unit, a preheating unit, a photoelectric unit, a concentrating unit and a heat recovery unit. The photothermal unit absorbs the thermal energy of sunlight; the photoelectric unit performs photoelectric conversion on sunlight; the preheating unit recycles the heat generated by the photoelectric unit and preheats the photothermal unit; the concentrating unit gathers sunlight; The heat absorbed by the heat unit is recycled; the direction control unit connects the photovoltaic unit, the photothermal unit and the light concentrating unit to control their direc...

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Abstract

The invention provides a solar energy photo-thermal photoelectric frequency division using system and belongs to the technical field of solar energy thermoelectricity coupling. The system comprises a photo-thermal unit, a photoelectric unit, a preheating unit and a light condensation unit for focusing sunlight. The photo-thermal unit, the preheating unit, the photoelectric unit and the light condensation unit are arranged in sequence from top to bottom in the direction of sunlight. The preheating unit and the photo-thermal unit are provided with inner passages and are communicated through the inner passages. Frequency division fluid which flows from the preheating unit to the photo-thermal unit is contained in the inner passages. The photoelectric unit adheres to the lower portion of the preheating unit, so that heat exchanging with the frequency division fluid in the inner passages of the preheating unit is carried out. The light condensation unit is a reflecting type light condensation unit, sunlight which penetrates through the photoelectric unit is gathered, and the gathered sunlight is reflected to the photoelectric unit. The solar energy photo-thermal photoelectric frequency division using system is low in cost, solar energy total converting efficiency is high, and high-grade thermal energy can be obtained.

Description

technical field [0001] The invention belongs to the technical field of combined use of solar heat and electricity, and relates to a solar energy utilization system, in particular to a solar thermal photoelectricity frequency division utilization system. Background technique [0002] As an ideal renewable energy source, solar energy has the advantages of "inexhaustible and inexhaustible", which is not only clean and environmentally friendly, but also safe and reliable. With the intensification of the dual problems of global energy crisis and environmental protection, governments of various countries have formulated relevant regulations and encouraging policies to promote the development of the solar energy industry. [0003] At present, the conversion methods of solar energy are mainly divided into photothermal conversion, photoelectric conversion, photobiological conversion, photochemical conversion and other methods, but the efficiency of a single utilization method is limi...

Claims

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Application Information

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IPC IPC(8): F24J2/05F24J2/24F24J2/46H02S40/42H02S40/22F24S10/40F24S10/70
CPCY02E10/44Y02E10/52
Inventor 张洁安巍
Owner TONGJI UNIV
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