Details
| Original language | English |
|---|---|
| Article number | 120541 |
| Number of pages | 8 |
| Journal | Renewable energy |
| Volume | 227 |
| Early online date | 23 Apr 2024 |
| Publication status | Published - Jun 2024 |
Abstract
Thermal contact resistance (TCR) is a critical characteristic on increasing or decreasing thermal energy transmission efficiency between two bodies in thermal management systems. However, it is difficult to accurately determine the thermal contact resistance in actual engineering structures, due to the complicated influence factors, such as pressure, temperature, and physical properties. In the work, a new method is presented to estimate the thermal contact resistance for a three-dimensional (3D) reusable heat-pipe cooled thermal protection system based on boundary measurements, by solving transient inverse thermo-mechanical coupling problems. Moreover, the thermal contact resistance varies with interface pressure, temperature, and spatial position, which is more practical and challenging. The thermo-mechanical coupling analysis is conducted by the finite element method, and the inversion is carried out by the gradient-based algorithm. First, the present method is validated by identifying the constant TCR, based on the available experimental data. Then, the thermal contact resistance with the functional form in the 3D reusable thermal protection system is accurately estimated. Finally, the convergence stability and robustness of the proposed method are evaluated, by considering the effects of initial guess value and measurement error, respectively. The accurate determination of thermal contact resistance of the reusable thermal protection system effectively avoids the overweight of aircraft and improves its utilization. The present work provides a novel approach for the determination of thermal contact resistance in actual engineering applications.
Keywords
- Parameter prediction, Reusable heat-pipe cooled thermal protection system, Thermal contact resistance, Thermo-mechanical coupling analysis
ASJC Scopus subject areas
Sustainable Development Goals
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In: Renewable energy, Vol. 227, 120541, 06.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Prediction of thermal contact resistance for reusable heat-pipe cooled thermal protection system based on an inverse thermo-mechanical coupling method
AU - Zhang, Chunyun
AU - Yu, Peng
AU - Sun, Chengbao
AU - Peng, Haifeng
AU - Cui, Miao
AU - Xu, Bingbing
N1 - Funding Information: Financial support of this work by the National Natural Science Foundation of China (12172078, 12272081) and the Fundamental Research Funds for the Central Universities (DUT21LK04) is gratefully acknowledged.
PY - 2024/6
Y1 - 2024/6
N2 - Thermal contact resistance (TCR) is a critical characteristic on increasing or decreasing thermal energy transmission efficiency between two bodies in thermal management systems. However, it is difficult to accurately determine the thermal contact resistance in actual engineering structures, due to the complicated influence factors, such as pressure, temperature, and physical properties. In the work, a new method is presented to estimate the thermal contact resistance for a three-dimensional (3D) reusable heat-pipe cooled thermal protection system based on boundary measurements, by solving transient inverse thermo-mechanical coupling problems. Moreover, the thermal contact resistance varies with interface pressure, temperature, and spatial position, which is more practical and challenging. The thermo-mechanical coupling analysis is conducted by the finite element method, and the inversion is carried out by the gradient-based algorithm. First, the present method is validated by identifying the constant TCR, based on the available experimental data. Then, the thermal contact resistance with the functional form in the 3D reusable thermal protection system is accurately estimated. Finally, the convergence stability and robustness of the proposed method are evaluated, by considering the effects of initial guess value and measurement error, respectively. The accurate determination of thermal contact resistance of the reusable thermal protection system effectively avoids the overweight of aircraft and improves its utilization. The present work provides a novel approach for the determination of thermal contact resistance in actual engineering applications.
AB - Thermal contact resistance (TCR) is a critical characteristic on increasing or decreasing thermal energy transmission efficiency between two bodies in thermal management systems. However, it is difficult to accurately determine the thermal contact resistance in actual engineering structures, due to the complicated influence factors, such as pressure, temperature, and physical properties. In the work, a new method is presented to estimate the thermal contact resistance for a three-dimensional (3D) reusable heat-pipe cooled thermal protection system based on boundary measurements, by solving transient inverse thermo-mechanical coupling problems. Moreover, the thermal contact resistance varies with interface pressure, temperature, and spatial position, which is more practical and challenging. The thermo-mechanical coupling analysis is conducted by the finite element method, and the inversion is carried out by the gradient-based algorithm. First, the present method is validated by identifying the constant TCR, based on the available experimental data. Then, the thermal contact resistance with the functional form in the 3D reusable thermal protection system is accurately estimated. Finally, the convergence stability and robustness of the proposed method are evaluated, by considering the effects of initial guess value and measurement error, respectively. The accurate determination of thermal contact resistance of the reusable thermal protection system effectively avoids the overweight of aircraft and improves its utilization. The present work provides a novel approach for the determination of thermal contact resistance in actual engineering applications.
KW - Parameter prediction
KW - Reusable heat-pipe cooled thermal protection system
KW - Thermal contact resistance
KW - Thermo-mechanical coupling analysis
UR - http://www.scopus.com/inward/record.url?scp=85191161413&partnerID=8YFLogxK
U2 - 10.1016/j.renene.2024.120541
DO - 10.1016/j.renene.2024.120541
M3 - Article
AN - SCOPUS:85191161413
VL - 227
JO - Renewable energy
JF - Renewable energy
SN - 0960-1481
M1 - 120541
ER -