Application of Transfer Function in Predicting the Temperature Field of Space Equipment Under Periodic External Heat Flow
The temperature state of outer space devices is influenced by the heat flow outside the space. Although traditional numerical simulation analysis methods are highly accurate, they are time-consuming and not conducive for researchers to quickly assess the effects of external heat flow variations and...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-03-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2022.833071/full |
| _version_ | 1811329110247473152 |
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| author | Jing Qian Jing Qian Liwei Sun |
| author_facet | Jing Qian Jing Qian Liwei Sun |
| author_sort | Jing Qian |
| collection | DOAJ |
| description | The temperature state of outer space devices is influenced by the heat flow outside the space. Although traditional numerical simulation analysis methods are highly accurate, they are time-consuming and not conducive for researchers to quickly assess the effects of external heat flow variations and are difficult to apply to program optimization codes that require large-scale iterative calculations or to codes for on-board temperature control chips. This paper presents an analytical algorithm for heat transfer problems: The transfer function method is applied to the thermal control analysis of outer space equipment with a small computational effort and a simple and straightforward computational procedure. Although this analytical approach only considers a limited set of influencing parameters and the precision of the calculation cannot be compared with numerical methods, it can be applied to the early prediction of internal temperature changes caused by heat flow changes outside the modification of outer space devices, embedded in the optimization code of a design solution, or integrated into the code of an on-board temperature control chip with minimum computational effort. In general, the transfer function method is not suitable for solving the radiation term, whereas this paper excludes the radiation term from the time delay calculation based on the small time scale of the radiation term and solves the time delay of the internal temperature relative to the external surface temperature directly, whereas the amplitude decay of the internal temperature change relative to the external surface temperature fluctuation is solved by the steady-state method based on the long period of the external heat flow change. The practicality of the transfer function method in the design of thermal control of external space devices is evidenced by comparing the computational results with those of commercial software and experimental results. |
| first_indexed | 2024-04-13T15:38:06Z |
| format | Article |
| id | doaj.art-d00e149693564eb0a11cf149a7eae5a6 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-13T15:38:06Z |
| publishDate | 2022-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-d00e149693564eb0a11cf149a7eae5a62022-12-22T02:41:14ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2022-03-011010.3389/fenrg.2022.833071833071Application of Transfer Function in Predicting the Temperature Field of Space Equipment Under Periodic External Heat FlowJing Qian0Jing Qian1Liwei Sun2Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, ChinaKey Laboratory of Intelligent Infrared Perception, Chinese Academy of Sciences, Shanghai, ChinaShanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, ChinaThe temperature state of outer space devices is influenced by the heat flow outside the space. Although traditional numerical simulation analysis methods are highly accurate, they are time-consuming and not conducive for researchers to quickly assess the effects of external heat flow variations and are difficult to apply to program optimization codes that require large-scale iterative calculations or to codes for on-board temperature control chips. This paper presents an analytical algorithm for heat transfer problems: The transfer function method is applied to the thermal control analysis of outer space equipment with a small computational effort and a simple and straightforward computational procedure. Although this analytical approach only considers a limited set of influencing parameters and the precision of the calculation cannot be compared with numerical methods, it can be applied to the early prediction of internal temperature changes caused by heat flow changes outside the modification of outer space devices, embedded in the optimization code of a design solution, or integrated into the code of an on-board temperature control chip with minimum computational effort. In general, the transfer function method is not suitable for solving the radiation term, whereas this paper excludes the radiation term from the time delay calculation based on the small time scale of the radiation term and solves the time delay of the internal temperature relative to the external surface temperature directly, whereas the amplitude decay of the internal temperature change relative to the external surface temperature fluctuation is solved by the steady-state method based on the long period of the external heat flow change. The practicality of the transfer function method in the design of thermal control of external space devices is evidenced by comparing the computational results with those of commercial software and experimental results.https://www.frontiersin.org/articles/10.3389/fenrg.2022.833071/fullspace equipmentthermal designtransfer function methodtime lagFourier transformfrequency domain |
| spellingShingle | Jing Qian Jing Qian Liwei Sun Application of Transfer Function in Predicting the Temperature Field of Space Equipment Under Periodic External Heat Flow Frontiers in Energy Research space equipment thermal design transfer function method time lag Fourier transform frequency domain |
| title | Application of Transfer Function in Predicting the Temperature Field of Space Equipment Under Periodic External Heat Flow |
| title_full | Application of Transfer Function in Predicting the Temperature Field of Space Equipment Under Periodic External Heat Flow |
| title_fullStr | Application of Transfer Function in Predicting the Temperature Field of Space Equipment Under Periodic External Heat Flow |
| title_full_unstemmed | Application of Transfer Function in Predicting the Temperature Field of Space Equipment Under Periodic External Heat Flow |
| title_short | Application of Transfer Function in Predicting the Temperature Field of Space Equipment Under Periodic External Heat Flow |
| title_sort | application of transfer function in predicting the temperature field of space equipment under periodic external heat flow |
| topic | space equipment thermal design transfer function method time lag Fourier transform frequency domain |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2022.833071/full |
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