Design and Optimization of the Inlet Header Structure in Microchannel Heat Exchanger Based on Flow Distribution Uniformity
نویسندگان
چکیده
The flow distribution in a printed circuit heat exchanger (PCHE) is of great theoretical and practical significance the Brayton cycle power generation system. For straight barrel inlet header PCHE, when S-CO2 flows structural types working parameters diversion zone may lead to differences each channel PCHE. This difference affects thermal hydraulic characteristics A numerical simulation method was applied explore uniformity PCHE overall performance analyze influence type Within layer, showed an uneven distribution, optimized tapered type. results that taper angle varies from 6° 9°, layer relatively uniform. comprehensive transfer straight-channel can be improved by 17.3–19.7%. Finally, response surface genetic algorithm were combined optimize header. 19.7%.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2022
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app12136604