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Еxperimental study of solar trackingsystems using a hydraulic cylinder with a composite working fluid
https://doi.org/10.15518/isjaee.2024.01.235-244
Abstract
It is known that the greatest influx of solar energy to the surface takes place during the normal incidence of the sun’s rays on it. However, systems for tracking the position of the Sun and the orientation of solar installations (tracking) require electric drives, are very energy-consuming, expensive and unreliable in operation.
The purpose of this research is to develop a power module based on the dialotometric effect in liquids and solids to create a passive solar tracker, as well as to select a liquid and search for effective polymer additives to create composite working fluids in tracking systems.
It has been experimentally shown that pure ethyl alcohol has the greatest effect of volume change in the temperature range of 20 to 80 °C. Other organic liquids (oils, antifreezes) can also be used in passive solar tracking systems. The addition of solid polymer additives to the liquid phase does not increase the effect of volumetric expansion.
It is shown that as a result of heating a liquid in a closed volume of a hydraulic cylinder with a diameter of 20 mm, masses weighing up to 10 kg can be moved.
Based on the research, the concept of the power module of a passive solar tracker is proposed.
About the Authors
P. A. Vyatkin
Ural Federal University named after the first President of Russia B. N. Yeltsin
Russian Federation
Russian Federation
Vyatkin Pavel Alekseevich -
Yekaterinburg
A. Kh. Mola
Ural Federal University named after the first President of Russia B. N. Yeltsin
Russian Federation
Russian Federation
Al-Mohammedawi Ahmed Hussein Mola - postgraduate student,
Yekaterinburg
S. E. Shcheklein
Ural Federal University named after the first President of Russia B. N. Yeltsin
Russian Federation
Russian Federation
Shcheklein Sergey Evgenievich - Dr. Techn. Doctor of Medical Sciences, Professor, Head of the Department of Nuclear Power Plants and Renewable Energy Sources; Full member of the International Energy Academy,
Yekaterinburg
Yu. E. Nemikhin
Ural Federal University named after the first President of Russia B. N. Yeltsin
Russian Federation
Russian Federation
Nemikhin Yurii Evgenievich - Senior Lecturer, the «Nuclear Power Plants
and Renewable Energy Sources» department,
Yekaterinburg
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Review
For citations:
Vyatkin P.A., Mola A.Kh., Shcheklein S.E., Nemikhin Yu.E. Еxperimental study of solar trackingsystems using a hydraulic cylinder with a composite working fluid. Alternative Energy and Ecology (ISJAEE). 2024;(1):235-244. (In Russ.) https://doi.org/10.15518/isjaee.2024.01.235-244
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