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Method for automatically tracking solar energy by using temperature variation

A technology of automatic tracking and temperature change, applied in the field of solar tracking brackets, can solve the problems of high construction cost and maintenance cost, complex system, etc., and achieve the effect of low construction cost and maintenance cost, simple maintenance and improved utilization efficiency.

Inactive Publication Date: 2014-12-17
山西国际能源集团新能源投资管理有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most tracking systems are automatically controlled by power electronics, the system is relatively complex and the cost of construction and maintenance is high

Method used

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  • Method for automatically tracking solar energy by using temperature variation
  • Method for automatically tracking solar energy by using temperature variation
  • Method for automatically tracking solar energy by using temperature variation

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0015] The present invention will be further described in conjunction with accompanying drawing and embodiment now. like Figure 1-3 As shown, with the annual seasonal cycle of the sun at the receiving place, the volume of the closed fluid temperature-sensitive medium 3 changes with the ambient temperature, causing the piston rod displacement of the bracket 2 with the piston rod, driving the solar receiving surface 1 to normal The support 4 rotates at a certain angle as the fulcrum, thereby realizing automatic tracking of the sun's altitude angle. The tracking of the sun azimuth is jointly completed by the solar double-sided heat absorber 5 and the piston 10 with a rack. The solar double-sided heat absorber 5 is composed of two mutually heat-insulated closed thermal chambers facing away from each other for daylighting to the east. Surface 6 and westward daylighting surface 7 are different in daily solar orientation, causing the fluid medium 8 in the corresponding thermal cavi...

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Abstract

The invention discloses a method for automatically tracking solar energy by using temperature variation, and relates to the field of solar energy tracking brackets. The method is characterized in that: the periodic variation of the solar energy in a receiving place is used for acting on a control temperature sensitive medium to form the periodic temperature variation of the temperature sensitive medium, the temperature sensitive medium is subjected to expansion and contraction, and a temperature displacement converter converts the variation of expansion and contraction into displacement, so that the pitch angle or azimuth angle of the connected solar energy receiving surface is adjusted, and the solar energy is inaccurately tracked. By using the periodic variation of environment temperature in the receiving place, which is formed by the annual periodic variation of the solar energy, an altitude angle of the sun is tracked through the displacement of the temperature displacement converter; and by using the east-west periodic variation of the sun every day, the azimuth angle of the sun is tracked through the displacement of the temperature displacement converter.

Description

technical field [0001] The invention belongs to the field of solar tracking brackets and is suitable for inaccurate automatic tracking of solar energy. Background technique [0002] In order to improve the efficiency of the solar receiving surface, methods such as fixed inclination, horizontal axis tracking, fixed inclination azimuth tracking, oblique single-axis (or polar axis) tracking, and dual-axis tracking are often used to reduce the incident angle of light on the receiving surface. Most tracking systems are automatically controlled by power electronics, the system is relatively complex and the cost of construction and maintenance is high. Contents of the invention [0003] The present invention aims to propose a method for automatically tracking solar energy using temperature changes. [0004] The technical solution of the present invention is: use the periodic variation of the received solar energy to act on the fluid temperature-sensitive medium for control, form...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D3/00
Inventor 赵艳勤
Owner 山西国际能源集团新能源投资管理有限责任公司
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