Thermal Modeling of Lidar Payload in a Remote Sensing Satellite under System Level Considerations with a Review on its Challenges

Khoshsima, Masoud; Shahryari ‎, Mehran; Ghazanfarinia, Sajjad; Emami, Shiva; Saffar, Yaser

doi:10.30699/jsst.2023.1429

Document Type : Research Paper

Authors

¹ Assistant Professor, Satellite Systems Research Institute, Iranian Space Research Center, Tehran, Iran

² Instructor, Satellite Systems Research Institute, Iranian Space Research Center, Tehran, Iran‎

³ M.Sc., Satellite Systems Research Institute, Iranian Space Research Center, Tehran, Iran‎

⁴ Ph.D. , Satellite Systems Research Institute, Iranian Space Research Center, Tehran, Iran‎

https://doi.org/10.30699/jsst.2023.1429

Abstract

The results show that the lidar in cold orbital conditions has a temperature increase of about 38 degrees Celsius due to thermal design. Also, the range of temperature fluctuations before applying thermal design in the cold state of temperature changes in a circuit is about 14 degrees and after designing these fluctuations have been reduced to about 5 degrees. In hot conditions, the temperature conditions have improved a lot after the design and the maximum operating temperature is about 27 degrees the average temperature has decreased by about 22 degrees, while the temperature fluctuations have also decreased by 21 degrees. A significant temperature increase has occurred in the receiver after applying the thermal design in cold conditions, which is still within the allowed range. This is despite the fact that in hot conditions, after applying the thermal design, there was no significant change in the temperature of the receiver. In the case of the reflector, the conditions are completely different, so the minimum temperature in cold conditions has increased by 42 degrees and the maximum temperature has decreased by 7 degrees in hot conditions. In addition, temperature changes have become more uniform in both cases.

Keywords

Main Subjects

Space subsystems design: (navigation, control, structure and…)

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Space Science and Technology

Thermal Modeling of Lidar Payload in a Remote Sensing Satellite under System Level Considerations with a Review on its Challenges

References

References

Volume 16, Issue 2 - Serial Number 56
June 2023
Pages 79-91

Thermal Modeling of Lidar Payload in a Remote Sensing Satellite under System Level Considerations with a Review on its Challenges

References

References

Volume 16, Issue 2 - Serial Number 56June 2023Pages 79-91

Volume 16, Issue 2 - Serial Number 56
June 2023
Pages 79-91