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A flat-panel photovoltaic photothermal comprehensive utilization device with night-time radiation cooling function

A radiation cooling, flat-plate technology, applied in the direction of photovoltaic thermoelectric hybrid power generation, photovoltaic power generation, photovoltaic modules, etc., can solve the problems of insufficient power, reduced use efficiency, and difficulty in achieving cooling effects for radiation refrigeration devices, so as to reduce convective heat transfer Effect

Inactive Publication Date: 2017-09-19
GUANGDONG FIVESTAR SOLAR ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the comprehensive utilization technology of solar photovoltaic light and heat is relatively mature, due to the influence of day and night, the PV / T system is idle at night, which greatly reduces its efficiency; The cost of the device is high, and it is difficult for the radiant cooling device to achieve the cooling effect during the day. Since the PV / T system and the radiant cooling device are often arranged on the roof of the building with a limited area, this also greatly reduces the utilization efficiency of the roof unit area

Method used

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  • A flat-panel photovoltaic photothermal comprehensive utilization device with night-time radiation cooling function
  • A flat-panel photovoltaic photothermal comprehensive utilization device with night-time radiation cooling function
  • A flat-panel photovoltaic photothermal comprehensive utilization device with night-time radiation cooling function

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Embodiment 1

[0042] Such as Figures 1 to 3As shown, the flat-panel photovoltaic photothermal comprehensive utilization device with nighttime radiation cooling function provided by the present invention includes a box body 7 with an open top surface, and the inner bottom surface and inner side wall of the box body 7 are all heat-insulating materials; The middle position of the heat collector plate 9 parallel to the bottom surface of the box body 7 is provided. The heat collector plate 9 is an anodized aluminum plate laminated with a black TPT layer. 85%, the black TPT layer includes an inner PVDF layer, a PET middle layer and an outer PVDF protective layer. In this embodiment, the black TPT layer is laminated on the front of the heat collecting plate 9 (the side away from the bottom of the box body 1); The cavity forms an air flow channel 11, one end of the air flow channel 11 is the air inlet 3, and the other end is the air outlet 4, and the air inlet 3 and the air outlet 4 are respectiv...

Embodiment 2

[0049] The difference from Embodiment 1 is that the volt battery 10 in this embodiment is a polysilicon photovoltaic cell, and the rest are the same as Embodiment 1, which will not be repeated here.

Embodiment 3

[0051] The difference from Embodiment 1 is that the volt battery 10 in this embodiment is an amorphous silicon photovoltaic cell, and the rest are the same as Embodiment 1, and will not be repeated here.

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Abstract

The invention belongs to the technical field of energy utilization, and in particular relates to a flat-panel photovoltaic photothermal comprehensive utilization device with nighttime radiation cooling function, which includes a box with an open top surface, a heat collecting plate, copper pipes, headers and photovoltaic cells. The heat plate is arranged in the box, and the cavity between the heat collecting plate and the bottom of the box forms an air flow channel. The side of the heat collecting plate close to the bottom of the box is provided with a copper tube, and the two ends of the copper tube are respectively connected to the collector. The tubes are connected, one end of one of the headers protrudes outside the box to form a water inlet, and one end of the other header extends out of the box to form a water outlet, and one end of the heat collecting plate is far away from the bottom of the box. Photovoltaic cells are installed on the side, and the top opening of the box is covered with a full-band high-transmittance material film. By replacing the glass cover with a full-band high-transmittance material film, and adding an air flow on the back of the heat collector plate The system can realize solar power generation and heat collection to produce hot water or hot air during the day, and radiative cooling to produce cold water or cold air at night.

Description

technical field [0001] The invention belongs to the technical field of energy utilization, and in particular relates to a flat-plate photovoltaic light-heat comprehensive utilization device with night-time radiation cooling function. Background technique [0002] At present, the photoelectric conversion efficiency of solar photovoltaic cell components is still low, and as the temperature rises, the photoelectric conversion efficiency of photovoltaic cells will also decrease, so that the full utilization of solar energy cannot be achieved. [0003] In recent years, solar photovoltaic / thermal utilization (PV / T) technology has received extensive attention and research because of its good efficiency of solar photovoltaic thermal utilization. The PV / T system effectively improves the comprehensive utilization efficiency of photovoltaic light and heat per unit area; on the other hand, the lower temperature heat transfer fluid flows through the heat collector plate to take away heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S40/44H02S40/42H01L31/048
CPCY02E10/50Y02E10/60
Inventor 裴刚季杰胡名科王其梁
Owner GUANGDONG FIVESTAR SOLAR ENERGY
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