Journal
AEROSPACE
Volume 9, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/aerospace9020104
Keywords
aircraft; thermal management system; parameter matching; sensitivity analysis; optimization
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The integrated thermal management system of aircraft is composed of multiple subsystems coupled with each other, requiring a special parameter-matching algorithm and appropriate optimization design method to improve system performance. Optimization results show that particle swarm optimization and genetic algorithm can effectively find the global optimal solution, with the particle swarm optimization method taking less time.
The integrated thermal management system of aircraft is essential to maintain a suitable environment for the cabin crew and devices. The system is composed of the air-cycle refrigeration subsystem, the vapor-compression refrigeration subsystem, the liquid-cooling subsystem and the fuel-cycle subsystem, which are coupled with each other through heat exchangers. Due to the complex structure and large number of components in the system, it is necessary to design a corresponding parameter-matching algorithm for its special structure and to select the appropriate optimization design method. In this paper, the structure of an integrated thermal management system is analyzed in depth. A hierarchical matching algorithm of system parameters was designed and realized. Meanwhile, a sensitivity analysis of the system was performed, where key parameters were selected. Besides, a variety of optimization algorithms was used to optimize the design calculations. The results show that the particle swarm optimization and genetic algorithm could effectively find the global optimal solution when taking the fuel penalty as the objective function. Furthermore, the particle swarm optimization method took less time.
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