Thermally induced vibrations of smart solar panel in a low-orbit satellite

Azadi, Emad; Fazelzadeh, S. Ahmad; Azadi, Mohammad

doi:10.1016/j.asr.2016.12.034

Cited by 39 publications

(13 citation statements)

References 24 publications

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“…As a result of the great interest in space environment, studies concerning the thermal behavior of spacecraft in space during travelling and in deep space during flight mission have become very important in real-time satellite simulators. Controlling the thermal characteristics is mandatory for the safe operation of a spacecraft/satellite [25]. In general, it is considered that the satellite has a pitch angle rotation maneuver due to the severe solar radiation during daytime transition.…”

Section: Introductionmentioning

confidence: 99%

“…In general, it is considered that the satellite has a pitch angle rotation maneuver due to the severe solar radiation during daytime transition. Modeling of the thermal behavior is then associated with heat radiation effects and thermally-induced vibration may exist at the high temperature gradients [25,26]. Therefore, a coupled-thermal structural analysis for an altitude maneuvering under solar thermal loading and maneuvering dynamics is very important in the analysis.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and Thermal Analysis of a Moving Spacecraft Subject to Solar Radiation Effect

et al. 2019

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The impact of solar radiation on spacecraft can increase the cooling load, degrade the material properties of the structure and possibly lead to catastrophic failure of their missions. In this paper, we develop a computational model to investigate the effect of the exposure to solar radiation on the thermal distribution of a spacecraft with a cylindrical shape which is traveling in low earth orbit environment. This is obtained by the energy conservation between the heat conduction among the spacecraft, the heating from the solar radiation, and the radiative heat dissipation into the surroundings while accounting for the dynamics of the space vehicle (rotational motion). The model is solved numerically using the meshless collocation point method to evaluate the temperature variations under different operating conditions. The meshless method is based on approximating the unknown field function and their space derivatives, by using a set of nodes, sprinkled over the spatial domain of the spacecraft wall and functions with compact support. Meshless schemes bypass the use of conventional mesh configurations and require only clouds of points, without any prior knowledge on their connectivity. This would relieve the computational burden associated with mesh generation. The simulation results are found in good agreement with those reported in previously-published research works. The numerical results show that spinning the spacecraft at appropriate rates ensures low and uniform temperature distribution on the spacecraft, treated as thick-walled object of different geometries. Therefore, this would extend its lifetime and protect all on-board electronic equipment needed to accomplish its mission.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling and Thermal Analysis of a Moving Spacecraft Subject to Solar Radiation Effect

et al. 2019

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“…Some results show that continuous anneal-ing could reduce the concentration of defects above a certain temperature [13,18]. In earth orbit, the solar array will be heated to above 100°C [19,20], and the recovery of radiation defects will be more rapid with the high temperature. Therefore, it is necessary to consider the effect of temperature on radiation defects when studying the radiation degradation of solar cells.…”

Section: Introductionmentioning

confidence: 99%

Annealing Effects on GaAs/Ge Solar Cell after 150 keV Proton Irradiation

Fang

Tao

Bai

et al. 2020

International Journal of Photoenergy

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Radiation-induced defects are responsible for solar cell degradation. The effects of radiation and annealing on the defects of a GaAs/Ge solar cell are modeled and analyzed in this paper. The electrical performance and spectral response of solar cells irradiated with 150 keV proton are examined. Then, thermal annealing was carried out at 120°C. We found that the proportion of defect recovery after annealing decreases with increasing irradiation fluence. The minority carrier lifetime increases with decreasing defect concentration, which means that the electrical performance of the solar cell is improved. We calculated the defect concentration and minority carrier lifetime with numerical simulation and modeled an improved annealing kinetic equation with experimental results.

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“…Farhan Ali Khan et al, [8] performed an analyzing work that deals in detecting the presence of defects that is present in the considered solar panel by using the thermal imaging system that uses the PCA and ICA method. E. Azadi et al, [9] did a detail study on the smart solar panel present in the satellites, which are used for production of electric power experience direct solar flares from the sun. To avoid the defects caused by the sun smart solar panel are used.Karan Kapoor et al, [10] discussed the evolution, development and advancement of the solar panel in India.…”

Section: Introductionmentioning

confidence: 99%

Design and Fabrication of Experimental Setup for Detecting and Analyzing the Defect in Solar Panel

K. A*,

Prasanna. V,

et al. 2020

IJITEE

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The energy consumed by the people around the world for one year is equal to the emission of power by the sun in one minute. Hence inventors have invented photovoltaic solar panels absorb sunlight as a source of energy to generate electricity. The solar panel efficiency depends on many factors, in which one of the factor in its defects. This project deals with design and fabrication of the defect detecting setup that helps to detect the intensity of the solar panel. The major concern of our project is to detect the percentage of the defect more precisely. Keeping the above mention criteria in mind all calculations was performed. The model was designed using AUTOCAD for 2D modeling and CATIA for 3D modeling. The overall cost of the project is certainly low as compared to the commercially available solar panel defect detector.

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Thermally induced vibrations of smart solar panel in a low-orbit satellite

Cited by 39 publications

References 24 publications

Modeling and Thermal Analysis of a Moving Spacecraft Subject to Solar Radiation Effect

Modeling and Thermal Analysis of a Moving Spacecraft Subject to Solar Radiation Effect

Annealing Effects on GaAs/Ge Solar Cell after 150 keV Proton Irradiation

Design and Fabrication of Experimental Setup for Detecting and Analyzing the Defect in Solar Panel

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