Development of Advanced Microchannel Heat Exchanger

(5)Empirical correlations for heat transfer and pressure drop in a new microchannel hot water supplier

抄録

The present study was carried out to propose empirical correlations for heat transfer and pressure drop performance of a new microchannel hot water supplier with S-shaped fins using supercritical carbon dioxide (S-CO₂) as heating medium through carrying out experiments over a wide range of conditions. The pressure ranged from 9.5 MPa to 12.5 MPa, the flow rate from 25 kg/h to 70 kg/h and the inlet temperature from 100 ^oC to 120 ^oC for S-CO₂; the flow rate from 20 kg/h to 50 kg/h and the inlet temperature from 7 ^oC to 25 ^oC for the water side.