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Photovoltaic module cooling system based on radiation cooling

A photovoltaic module and radiation cooling technology, applied in the field of photovoltaics, can solve difficult technical and economical problems, achieve the effects of improving photoelectric conversion efficiency, reducing energy consumption, and solving inefficiency problems

Pending Publication Date: 2020-04-10
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently commonly used cooling methods are difficult to meet both technical and economical requirements

Method used

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  • Photovoltaic module cooling system based on radiation cooling
  • Photovoltaic module cooling system based on radiation cooling
  • Photovoltaic module cooling system based on radiation cooling

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Experimental program
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Embodiment

[0032] Such as figure 1 As shown, the radiation cooling-based photovoltaic module cooling system construction method of the present invention consists of a photovoltaic module cooling system 1 , a radiation cooling system 2 , a pipeline system 3 , a booster pump 4 and a fluid 5 . The photovoltaic module cooling system 1 is placed obliquely, and the radiation cooling system 2 is placed obliquely against the sun within the distance required by the photovoltaic cooling system 1 . The piping system 3 sequentially connects the photovoltaic module cooling system 1 , the radiation cooling system 2 and the booster pump 4 to form a closed loop. The fluid 5 circulates in a closed circuit, and the fluid can use water, alcohol, oil, nanofluid and other heat exchange media, and requires good heat exchange performance.

[0033] Such as figure 2 The radiative cooling system 2 shown is, from top to bottom, an emission layer 11 , a reflection layer 12 , a heat-conducting silica gel 8 , a co...

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Abstract

The invention discloses a photovoltaic module cooling system based on radiation cooling. The photovoltaic module cooling system comprises a photovoltaic module cooling system, a radiation cooling system, a pipeline system and a booster pump. According to the photovoltaic module cooling system based on radiation cooling, the temperature of a transmission fluid can be reduced to be lower than the outdoor air temperature, the problem of low efficiency of a traditional passive cooling technology is solved, energy saving can be achieved under the condition of the traditional active cooling technology, and the photovoltaic module cooling system is an important means for photovoltaic module cooling in the future.

Description

technical field [0001] The invention belongs to the technical field of photovoltaics, and in particular relates to a cooling system for photovoltaic modules based on radiation cooling. Background technique [0002] At present, due to the high temperature problem of photovoltaic modules, the power generation efficiency is relatively low. Every time the temperature of silicon photovoltaic modules rises by 1 degree, the electrical efficiency will decrease by 0.45% to 0.6%; every time the temperature rises by 10 degrees, the aging speed of solar cells will be doubled. . Therefore, it is critical to keep the photovoltaic panel operating temperature at or near the optimum point. [0003] In order to improve the power generation efficiency of silicon-based photovoltaic panels, common photovoltaic power generation system cooling technologies can be divided into active cooling technology and passive cooling technology. Currently commonly used cooling methods are difficult to satisf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S40/42
CPCH02S40/42H02S40/425Y02E10/50
Inventor 张卓奋周志华刘俊伟焦时飞张德宝
Owner TIANJIN UNIV