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High-performance computing methods for designing an effective plate-fin pre-cooler

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Publicado en:Journal of Physics: Conference Series vol. 2955, no. 1 (Feb 2025), p. 012023
Autor principal: Li, Rui
Otros Autores: Zhao, Changyin, Guo, Jingfang, Zhang, Shunv, Heng Qi, Ning, Xin
Publicado:
IOP Publishing
Materias:
Plate-fin heat exchangers
High temperature gases
Performance evaluation
Critical components
Turbulence
Temperature
Coolers
Cooling effects
Thermal boundary layer
Fluid flow
High performance computing
Acceso en línea:Citation/Abstract
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Resumen:The pre-cooler as a critical component in aero-engines, is designed to rapidly cool high-temperature gases. Its internal fluid flow is inhomogeneous, influenced by thermal boundary layers, which results in a significant discrepancy between calculated and measured values. To bridge the gap between theoretical predictions and actual measurements, a new computational method for evaluating the flow and cooling effect of plate-fin pre-coolers has been developed, extending the approach used for plate-fin heat exchangers. This method takes into account the pre-cooler’s outlet temperature and heat transfer efficiency and introduces a turbulence section at the outlet of the high-temperature gas. The proposed method shows discrepancies between calculated and tested hot side outlet temperatures, ranging from 3.98% to 5.21% (average 4.63%), and for cold side outlet temperatures, the range is 1.32% to 3% (average 2.32%). The discrepancy for the hot side turbulence section compared to the unaugmented pre-cooler section is between 2.66% and 6.34% (average 4.62%). This computational evaluation method not only validates its own reliability but also provides a rapid means to assess the performance of plate-fin pre-coolers.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2955/1/012023
Fuente:Advanced Technologies & Aerospace Database