Abstract
In the manufacture, assembly, testing and operation of solar power plants, one has to deal with a wide variety of control and measuring operations, as well as means of control and measurement of physical quantities. Analysis of methods and means of control of solar parabolic trough installations showed that they are numerous and time consuming. This requires the development of modern automated systems for measuring, recording and processing the results of the energy characteristics of solar installations. This article describes an automated stand for measuring the thermal and energy characteristics of solar parabolic trough collectors. The developed experimental setup consists of a parabolic trough collector, a measuring tank, a converter, a meter, a level gauge, temperature sensors and electric valves. Consumption (energy generated) is measured with a graduated water tank. By measuring the volume of water and the temperature passed through the solar collector, you can estimate its efficiency. Several portions of heated water are collected in the measuring tank, depending on the intensity of the heating process. As the graduated tank fills, the digital output level gauge opens the electrical drain valve. On the basis of statistical processing of experimental data, the energy characteristics of the solar parabolic trough installation are determined.
Highlights
In the past two decades, concentrated solar energy technologies have received more and more attention to replace traditional energy technologies and reduce their environmental impact
Several portions of heated water are collected in the measuring tank, depending on the intensity of the heating process
We have investigated the optical and thermal characteristics of the energy module of a solar parabolic trough installation with geometric characteristics: B×L=2000×5000 mm, focal length f=866 mm and angle of coverage α=60°
Summary
In the past two decades, concentrated solar energy technologies have received more and more attention to replace traditional energy technologies and reduce their environmental impact. The maximum extraction of thermal energy from the Sun is the most difficult task [1] To meet this challenge, various manifolds have been modeled, designed, manufactured and tested to operate in various temperature ranges such as low temperature, medium temperature and high temperature manifolds. Various manifolds have been modeled, designed, manufactured and tested to operate in various temperature ranges such as low temperature, medium temperature and high temperature manifolds In applications such as process heat supply and steam generation, the parabolic trough solar collector (PTC) is considered the most popular among other collectors [2, 3, 4, 5]. Thermal efficiency depends on the total loss factor, which includes losses due to conduction, convection and radiation [6, 7]
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