High-concentration photovoltaic power generation heating supply system
A high-power concentration, photovoltaic power generation technology, applied in photovoltaic power generation, photovoltaic thermoelectric hybrid power generation, photovoltaic modules, etc., can solve the heat exchange effect that is difficult to achieve instantaneous cooling, cannot make full use of solar energy resources, and is difficult to effectively reduce battery temperature, etc. problems, to facilitate installation and component design, enhance heat exchange and cooling effect, and solve the problem of high heat flux density and heat dissipation
Inactive Publication Date: 2015-12-16
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology
Although this method can achieve a certain heat exchange and cooling effect, it is greatly affected by environmental factors. It is difficult to effectively reduce the temperature of the battery in hot weather conditions, and it is difficult to achieve the heat exchange effect of instant cooling, thus making the system The photoelectric conversion efficiency is lower than that of photovoltaic cells, and at the same time, it cannot make full use of solar energy resources.
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[0031] In order to further explain the technical solution of the present invention, the present invention will be further described through examples below in conjunction with the accompanying drawings.
[0032] see figure 1 A high-power concentrated photovoltaic power generation heating system includes a water tank 1, a water pump 2, and a high-power concentrated photovoltaic photothermal mechanism. see figure 1 and figure 2 , the high-power concentrating photovoltaic photothermal mechanism is composed of three groups of parallel photovoltaic photothermal modules 3; each group of photovoltaic photothermal modules 3 includes five series connected photovoltaic photothermal mechanisms; each photovoltaic photothermal mechanism is composed of a Fresnel lens 31 and Photovoltaic receiving mechanism 34 is formed. see Figure 4 and Figure 5 The photovoltaic receiving mechanism 34 is composed of a secondary optical prism 341, a solar photovoltaic cell 342, and a tubular water-coo...
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The invention relates to a high-concentration photovoltaic power generation heating supply system. The heating supply system comprises a water tank, a water pump and a high-concentration photovoltaic photo-thermal mechanism; the high-concentration photovoltaic photo-thermal mechanism comprises at least one group of photovoltaic photo-thermal components; each group of the photovoltaic photo-thermal components comprise at least two serially-connected or shunt-wound photovoltaic photo-thermal mechanisms; each photovoltaic photo-thermal mechanism comprises a Fresnel lens and a photovoltaic receiving mechanism; the photovoltaic receiving mechanism comprises a secondary optical prism, a solar photovoltaic battery and water-cooling heat-exchanging members which are connected in sequence; a power generation mechanism is formed by the Fresnel lens, the secondary optical prism and the solar photovoltaic battery; a circulating water pipeline of the high-concentration photovoltaic photo-thermal mechanism is formed by the water-cooling heat-exchanging members in a series-wound or shunt-wound manner; and a circulating water heating supply loop is formed by the water tank, the water pump and the circulating water pipeline in a serial-wound manner. When a gallium arsenide triple junction battery is used as the photovoltaic battery of the system, the system can realize photoelectric conversion efficiency greater than 20% and photo-thermal conversion efficiency of 55% at the seam time, and the highest solar energy utilization rate of the system can reach greater than 75%.
Description
technical field [0001] The invention belongs to the technical field of comprehensive utilization of solar photovoltaic light and heat, and in particular relates to a high-power concentrating photovoltaic power generation and heating system. Background technique [0002] Due to the ubiquity of solar energy and its unlimited use of cleanliness, the application of solar energy has become one of the important ways to supplement conventional energy. The main methods of solar energy utilization include solar thermal utilization, solar photovoltaic utilization, solar photochemical utilization and solar photobiological utilization. In the utilization of solar photovoltaics, the temperature of photovoltaic cells will increase after absorbing solar radiation, which will lead to a decrease in photoelectric conversion efficiency. One of the effective ways to improve the efficiency of solar photovoltaic power generation is to reduce the operating temperature of photovoltaic cells, that ...
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IPC IPC(8): H02S40/44H02S40/22F24J2/00
CPCY02E10/40Y02E10/52Y02E10/60
Inventor 季杰徐宁孙炜韩利生金祝岭黄文竹
Owner UNIV OF SCI & TECH OF CHINA
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