@Article{fhmt.2023.042288,
AUTHOR = {Huda Adel Hassan Ali, Ameer Abed Jaddoa, Jafaar Mohamme Daif},
TITLE = {Comparison and Analysis of Heat Transfer and Inflow Rate for Supercritical Carbon Dioxide Based on Different Tubes},
JOURNAL = {Frontiers in Heat and Mass Transfer},
VOLUME = {21},
YEAR = {2023},
NUMBER = {1},
PAGES = {443--465},
URL = {http://www.techscience.com/fhmt/v21n1/54761},
ISSN = {2151-8629},
ABSTRACT = {This paper is twofold. First, the effect of non-linear thermophysical property variation was presented using
supercritical carbon dioxide (SCO<sub>2</sub>) around the thermodynamic pivotal point. The second part exhibits an
experimental examination of the heat transfer (HT) behaviour of SCO<sub>2</sub> in a helical tube with a hydraulic diameter
of 2 mm at different mass fluxes (MF), heat fluxes (HF), and pressures (P). The experiments were carried out
based on various pressures, mass fluxes, and heat fluxes for both scenarios. CO<sub>2</sub> was cooled in a 2 mm diameter
serpentine tube made of copper material. The experimental results showed that HT degradation could happen
under the circumstances of a change in HF and MF and have significant effects on fluid inflow and HT performance.
Also, buoyancy plays an essential and influential role in the HT factors. By increasing the pressure value, the HT
parameters decrease when the pressure reaches 8 MPa, and the flotation value is more significant, which means a
decrease in the HT factor. Finally, under the system circumstances, the HT value decreases with the increase in heat
flux and pressure and increases with the increment in MF.},
DOI = {10.32604/fhmt.2023.042288}
}