ZHANG Jieshuo, LU Mingjian, SUN Yuwei, et al. Heat transfer characteristics of supercritical carbon dioxide microchannels considering the error of channel shape[J]. Thermal power generation, 2023, 52(6): 35-44.
ZHANG Jieshuo, LU Mingjian, SUN Yuwei, et al. Heat transfer characteristics of supercritical carbon dioxide microchannels considering the error of channel shape[J]. Thermal power generation, 2023, 52(6): 35-44. DOI: 10.19666/j.rlfd.202301001.
In view of the deviation between the actual heat transfer performance and the theory of printed circuit plate heat exchanger due to processing errors and deformation during service
the shape characteristics of the actual micro-channel were measured and obtained by using ultra-depth of field microscope technology. The micro-channel heat transfer with different channel shapes was numerically simulated
and the influence of channel shape on thermal performance was analyzed. According to the results of numerical simulation
a new heat transfer characteristic correlation formula was obtained
which can provide a theoretical basis for evaluating the heat transfer performance of the actual service of supercritical carbon dioxide printed circuit plate heat exchangers.