Solar photovoltaic-thermochemical composite device and power generation system based on nanocatalyst
A nano-catalyst and solar photovoltaic technology, which is applied in the field of power generation systems and solar photovoltaic-thermochemical composite utilization devices, can solve the problems of insufficient contact between catalysts and reactants, reduced catalyst utilization, large losses, etc., to achieve improved The Effect of Solar Energy Efficiency
Active Publication Date: 2019-05-17
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology
This form of partition heat exchange has the disadvantages of many links in the heat exchange process, large losses, and slow response.
At the same time, since thermochemical reactions are usually carried out under the condition of catalysts, the common catalyst filling method is mostly direct accumulation and filling of centimeter-sized particles. The contact cannot be ensured sufficiently, thereby reducing the utilization rate of the catalyst
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0025] The nano-catalyst-based solar photovoltaic-thermochemical composite device proposed by the present invention is suitable for comprehensive utilization of solar photovoltaic light and heat at medium and low temperatures, and includes a concentrator and a receiver. Among them, the receiver is composed of a curved concave lens, a liquid raw material containing nano-catalyst particles, a transparent parallel channel, a photovoltaic cell plate and a thermal insulation structure. The transparent side-by-side channel is located above the inside of the receiver, the upper surface of the transparent side-by-side channel is arranged with photovoltaic panels, the inside is the liquid raw material containing nano-catalyst parti...
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The invention discloses a nano-catalyst-based solar photovoltaic-thermochemical composite apparatus. By combination of solar photovoltaic and thermochemistry through a technology, full-wavelength utilization of solar energy is realized. The apparatus reflects solar radiation through a collecting lens (101) to focus the solar radiation to the surface of a receiver (102); a liquid raw material (104) containing the nano-catalyst in the receiver (102) absorbs the solar radiation with wavelength of less than 400nm for performing photo-thermal conversion; and a photovoltaic cell panel (106) in the receiver (102) absorbs the solar radiation with wavelength of greater than 400nm for performing photo-electric conversion. The invention also discloses a power generation system applying the nano-catalyst-based solar photovoltaic-thermochemical composite apparatus; electric energy is output through an inverter based on the photo-electric conversion effect; and the electric energy is output through a fuel gas-steam combined cycle unit based on the photo-thermal conversion effect, so that distributed power supply capability for realizing all-weather power supply based on solar energy is realized.
Description
technical field [0001] The invention belongs to the technical field of comprehensive utilization of solar energy, and in particular relates to a solar photovoltaic-thermochemical composite utilization device and a power generation system using the device. Background technique [0002] With the rapid growth of energy demand and the increasingly serious environmental problems, increasing the proportion of green energy in the energy structure has become a national energy development strategy. In green energy, solar energy reserves are extremely rich, and its status is particularly important. [0003] At present, there are mainly two ways to utilize solar energy in the industrial field: photovoltaic and photothermal. The structure of photovoltaic utilization is simple, but it does not have the conditions for continuous work day and night, that is, it cannot store large-scale energy. Although the system structure of photothermal utilization is complicated, energy storage can be...
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IPC IPC(8): H02S10/10H02S40/22F02C6/00
CPCY02E10/52
Inventor 孙杰洪慧刘启斌
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI