Optical efficiency measurement device and test method of trough solar collector tube

A trough solar energy and optical efficiency technology, applied in the field of solar thermal utilization, can solve the problems of uneven fluid distribution, large test error, large air change, etc., to reduce the risk of wear or damage, improve uniformity and stability, Reduce the effect of temperature unevenness
CN107703182BActive Publication Date: 2021-05-28INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
Publication Date
2021-05-28

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Abstract

A device for measuring the optical efficiency of a trough-type solar heat collecting tube and a testing method thereof, including an elliptical concentrator, an elliptical concentrator support, a sun simulation light source, a trough-type solar heat collecting tube support, a first temperature equalizing device, a second Equalization device, spoiler rod, flow meter, fluid driven pump, liquid supply tank, liquid storage tank and measurement system. The elliptical concentrator is a chamber with a non-complete ellipse in cross section. The inner wall of the elliptical concentrator has a mirror surface. on the focal line. The elliptical concentrator reflects and focuses the light emitted by the sun simulation light source onto the trough solar heat collecting tube. The two ends of the trough-type solar collector tube to be tested and the interior are respectively placed with a temperature equalization device and a spoiler rod. By comparing the actual heat gain of the trough-type solar collector tube to be tested with the heat gain of the standard trough-type solar collector tube, the to-be-tested trough-type solar collector tube is obtained. Measuring the optical efficiency of trough solar collector tubes.
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Description

technical field

[0001] The invention relates to the field of solar thermal utilization, in particular to a device for measuring optical efficiency of a trough-type solar heat collecting tube and a testing method thereof. Background technique

[0002] Trough solar thermal power generation is currently the most widely used and lowest-cost solar thermal power generation technology in the world. It uses parabolic reflectors to reflect and focus sunlight to the trough solar collector tube located on its focal line to heat the fluid in the tube, and then Generate high-temperature steam to drive the steam turbine to generate electricity. The trough-type solar heat collector is the most critical component in the solar thermal power generation system from light to heat, and its optical efficiency directly affects the power generation efficiency and operating cost of the solar power station. The optical efficiency of the trough solar collector tube is one of the core performance indi...

Claims

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