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System and method for enabling solar concentrating photovoltaic and medium-and low-temperature thermochemistry to jointly generate energy by using spectral frequency division

A solar concentrating and concentrating photovoltaic technology, applied in the field of full spectrum of solar energy, can solve the problems of increasing technical difficulties and costs, and achieve the effect of ensuring normal operation

Inactive Publication Date: 2018-01-26
HARBIN INST OF TECH AT WEIHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in order to obtain a higher temperature working fluid, high temperature resistant concentrator photovoltaic cells have to be used, which virtually increases technical difficulties and costs

Method used

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  • System and method for enabling solar concentrating photovoltaic and medium-and low-temperature thermochemistry to jointly generate energy by using spectral frequency division
  • System and method for enabling solar concentrating photovoltaic and medium-and low-temperature thermochemistry to jointly generate energy by using spectral frequency division

Examples

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Embodiment 1

[0020] Example 1: Combining figure 1 with figure 2 To illustrate, a combined production system of solar concentrated photovoltaics and medium-low temperature thermochemistry through spectral frequency division, and a combined production system of solar concentrated photovoltaics and medium-low temperature thermochemical through spectral frequency division, including Fresnel lenses 1, Spectral frequency divider 2, medium and low temperature thermochemical reaction device 3, concentrator photovoltaic cell 4 and low temperature heat exchanger 7; Spectral frequency divider 2 is set directly below the Fresnel lens 1; Spectral frequency divider 2 pairs of different Spectral solar energy redistribution, which separates the solar spectrum at a wavelength of 1200nm, so that sunlight with a wavelength smaller than the 1200nm wavelength is delivered to the surface of the concentrated photovoltaic cell and converted into electrical energy, and the sunlight with a wavelength greater than ...

Embodiment 2

[0021] Example 2: Combining figure 1 with figure 2 To illustrate, this embodiment provides a method for realizing the combined production capacity of solar concentrated photovoltaics and medium-low temperature thermochemistry through spectral frequency division. This method is realized by relying on the system described in Embodiment 1; the specific steps of the method are:

[0022]The sunlight is irradiated on the Fresnel lens 1 to concentrate the sunlight, and the spectral frequency divider 2 is used to redistribute the concentrated solar energy of different spectra, and the sunlight in the spectral response band of the concentrated photovoltaic cell in the solar spectrum is transported to the concentrated photovoltaic On the surface of the battery, the spectral response band of the concentrated photovoltaic is less than 1200nm; the sunlight that cannot be utilized by the concentrated photovoltaic cell in the solar spectrum is sent to the low-temperature heat exchanger 7 an...

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Abstract

The invention relates to a system and method for enabling solar concentrating photovoltaic and medium-and low-temperature thermochemistry to jointly generate energy by using spectral frequency division and belongs to the solar full spectrum technical field. According to the technical schemes of the invention, a spectral frequency divider is arranged under a Fresnel lens; the spectral frequency divider divides solar spectra at 1200nm wavelength; sunlight of which the wavelength is smaller than 1200nm is transmitted to the surface of a concentrating photovoltaic battery; sunlight of which the wavelength is larger than 1200nm is transmitted to a medium-and low-temperature thermochemical reaction device and a low-temperature heat exchanger so as to provide heat energy required by an endothermic reaction; the low-temperature heat exchanger and the medium-and low-temperature thermochemical reaction device are communicated with each other through a pipeline so as to form a loop; and therefore, the full-spectrum utilization of solar energy is achieved under a condition that the thermal coupling of the concentrating photovoltaic battery and the thermochemical reaction device is avoided; andthe spectral frequency division technology is adopted, so that the temperature of the concentrating photovoltaic battery can be decreased from the source, and therefore, the normal operation of the photovoltaic battery can be ensured, and high-grade thermal energy of a higher temperature can be obtained to provide energy required by medium-and low-temperature thermochemical reactions.

Description

technical field [0001] The present invention relates to a combined production system and method of solar concentrated photovoltaics and medium and low temperature thermochemistry, in particular to a combined production system and method of solar concentrated photovoltaics and medium and low temperature thermochemistry through spectral frequency division, and belongs to the technical field of solar energy full spectrum . Background technique [0002] With its unlimited reserves and clean development and utilization, solar energy has become one of the effective ways to solve the problems of energy shortage, environmental pollution and greenhouse effect caused by the development and utilization of fossil energy in the 21st century. The utilization of solar energy resources can be divided into photoelectric conversion utilization, photothermal conversion utilization and photochemical conversion utilization according to the energy conversion method. Among them, solar photovoltaic...

Claims

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Application Information

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IPC IPC(8): H01L31/04H01L31/054H01M8/0612H02S10/30
CPCY02E10/52Y02E60/50
Inventor 王富强梁华旭李洪阳程子明谭建宇
Owner HARBIN INST OF TECH AT WEIHAI
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