Bio-sun tracker engineering self-driven by thermo-mechanical actuator for photovoltaic solar systems

Riad, Amine; Zohra, Mouna Ben; Alhamany, Abdelilah; Mansouri, Mohamed

doi:10.1016/j.csite.2020.100709

Cited by 13 publications

(6 citation statements)

References 25 publications

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“…It also makes it possible to relate the variation of global deformation to changes in temperature and stress and to take into account the different aspects of interactions. Then, the total energy that describes the different energy interacts with the system (Riad et al, 2020) can be written:…”

Section: Modelling 31 Modelling Coupled Thermo-mechanical Governing E...mentioning

confidence: 99%

Design and Development of Shape Memory Alloy Actuator for Preventing and Protecting Electrical Wires

Er-Remyly

Zohra

Riad

et al. 2023

Int. j. math. eng. manag. sci.

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Fatigue failure of wires is a frequent issue that evolves over time as a result of utilizing the profile under variable stress and temperature. In this article, an innovative study makes it possible to propose a protective tool for metal profiles against fatigue using shape memory alloys (SMA). Smart actuators like SMA are able to push back sudden stresses above the elastic limit, therefore, are characterized by high resistance to fatigue and even against corrosion due to their strong thermomechanical coupling. Besides, the study provides the results necessary to add a layer based on the shape memory tube to protect the important connectors for industrial systems and automotive industries. The conductivity of electrical current in various electronic devices depends on the copper material, which is good at conducting electricity and heat but weak against mechanical forces and hence easily susceptible to fatigue. Thereby, the elastic regime of copper is different from that of SMA, and in order to adapt the properties of two materials, a mathematical study can describe the behaviour of two combined systems is important for the analysis of the cyclic effect and for adapting the proposed actuator in wiring technology. Therefore, the study shows the great potential of the proposed SMA tube with its superelastic behaviour to increase the predicted lifespan of metallic wires against corrosion and fatigue. The lifetime of the conduction system with the protective SMA is increased remarkably and can reach up to 105cycles under the action of the stress of an amplitude of 550 MPa, the finite element simulation shows that the system of SMA combined with a 4 mm wire undergoing significant stress up to 490 MPa that can reach a deformation of 7% and return to the initial state without residual deformation. The simulation's results look at the evolution of stress, strain, fatigue lifetimes, and anticipated damage, and they match the experimental results of SMA tube properties rather well. Consequently, the verification of the proposed model confirms the improvement in the lifespan of studied wires compared to wires without SMA encapsulation.

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Section: Modelling 31 Modelling Coupled Thermo-mechanical Governing E...mentioning

confidence: 99%

Design and Development of Shape Memory Alloy Actuator for Preventing and Protecting Electrical Wires

Er-Remyly

Zohra

Riad

et al. 2023

Int. j. math. eng. manag. sci.

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“…10. Riad et al (2020) Sun tracking system that used six SMAs in spring form with 10 mm diameter to actuate and move the solar panel.…”

Section: Riad Et Al (2017)mentioning

confidence: 99%

Adaptive solar panel - overview and conceptual design

Hamid

Basharuddin

Sukindar

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Renewable energy should reach its maximum usage capacity, around 20%, by 2025, as laid out by the Malaysian government to achieve the seventh Sustainable Development Goals (SDG): Affordable and clean energy. Many actions have been implemented to support the idea, including the development of solar energy panels in large photovoltaic installation. However, the installations require a wide area of land, and the efficiency offered is limited due to their fixed position. The efficiency of solar panels in absorbing the light from the sun is important to increase the energy supply. Several designs of the adaptive solar panel were developed by researchers, but the installation costs are high due to the components used. Commonly used actuators to move the solar panels are motor (DC motor, stepper motor, servo motor) that actuate according to the signals from photosensor, programming logic control (PLC), or microcontroller. Herein, the development of an Adaptive Solar Panel (ASP) is studied. SMA with high recoverability when it is strained is introduced as an actuator that capable of generating large actuation when heated to move the solar panel. In discovering the potential of SMA wire, a modern environmental-friendly design with six layers of solar panels with a rotational support system was designed in this study. In future work, the SMA wire actuation will be evaluated by computational simulation method using LS-Dyna.

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“…These factors determine the design specifications, such as material, loading configuration shape, cooling, heating method, design type, design approach, and control mechanism. As a result of such studies, the development of advanced SMAbased actuators has accelerated; innovative mechanisms have made a considerable leap in research and development and show a bright future [13,18,26,30,31]. As proof, multiple reviews have been carried out for investigating different types of SMA-based actuators and comparing the actuators [10,13,15,28,29,32].…”

Section: Introductionmentioning

confidence: 99%

Thermal Investigation and Optimized Design of a Novel Solar Self-Driven Thermomechanical Actuator

Osman

Hariri

2022

Sustainability

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As the world moves toward cleaner and greener sources of energy, the use of solar energy appeals the most for countries in the Middle East and North Africa (MENA) region, since they have an abundant amount of solar radiation throughout the year. This paper offers a novel design for a shape memory alloy (SMA) actuator that uses solar energy to trigger thermomechanical behavior. Additionally, the proposed design of the thermomechanical actuator aims to be a piston-based linear actuator covered by a solar heat collector (SHC). Furthermore, the thermal behavior of the actuator has been studied in detail using a simulation-based study under the real-time weather conditions of Dammam city, Kingdom of Saudi Arabia (KSA). The thermal study proves that the optimized design of the thermomechanical actuator has achieved a minimum daily temperature variation of 10 °C, which enables the SMA-based thermomechanical actuator to operate in a daily manner throughout the year. Moreover, the presented numerical results show that the proposed thermomechanical actuator requires a twice-maintenance routine yearly. Additionally, it has been observed that the SHC, which is the central part of the designed thermomechanical actuator, can increase the temperature inside the actuator by about 15 °C more than ambient temperature. The proposed study adds to the body of knowledge a design for a passive, solar-driven, and self-actuating smart thermomechanical SMA actuator that is capable of integration with various solar applications, such as the cleaning and tracking of photovoltaic systems.

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Bio-sun tracker engineering self-driven by thermo-mechanical actuator for photovoltaic solar systems

Cited by 13 publications

References 25 publications

Design and Development of Shape Memory Alloy Actuator for Preventing and Protecting Electrical Wires

Design and Development of Shape Memory Alloy Actuator for Preventing and Protecting Electrical Wires

Adaptive solar panel - overview and conceptual design

Thermal Investigation and Optimized Design of a Novel Solar Self-Driven Thermomechanical Actuator

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