Hydraulic resistance of supercritical pressure water flowing in channels – A survey of literature

Current status of the thermohydraulic behavior of supercritical refrigerants: A review

“…The supercritical friction factor is thus often written as function of an isothermal single-phase model (such as the Filonenko [129] or Colebrook [130] equation), with corrections to account for the steep property variations between the wall and bulk of the flow. For supercritical adiabatic flow, several authors obtained a good similarity between the Filonenko equation [129] and their experimental results [125]. Based on these results, it was concluded that for isothermal flow, the hydraulic characteristics of the flow are the same for sub-or supercritical flow.…”

“…As studies involving the hydraulic behavior of supercritical fluids are much more scarce compared to heat transfer studies, even though it is one of the main characteristics of a practical installation [125], this section will combine the research on the different fluids. It should be noted that an overview of the work on the pressure drop in smooth tubes is provided, other assemblies such as internally ribbed tubes are not considered.…”

“…Year Mode Fluid d h (mm) Pitla et al [23] 1998 C CO 2 Pioro and Duffey [126] [38] 2016 C/Ht CO 2 (H/V) Ehsan et al [39] 2018 C/Ht CO 2 (6V; 14H) 0.7 -19.05 Fang et al [128] 2020 C/Ht Deev et al [125] 2021 Ht H 2 O 2 -26 area. However, according to Pioro and Duffey [126] neglecting the other influences is not justified as gravitational pressure drop is most significant at vertical orientations (and zero at horizontal orientations) and the flow acceleration pressure drop is most significant when the fluid reaches its critical or pseudocritical points, as density undergoes a significant variation when the fluid is heated (or cooled) along the test section.…”

“…The most recent review on the hydraulic resistance of supercritical water was published in 2021 by Deev et al [125]. Besides the studies also listed by Pioro and Duffey [126] (with the last one published in 1985), they included more recent works, between 2012 -2020.…”

Analysis of the Brayton cycle coupled with a small fluoride salt-cooled high-temperature reactor

“…Regarding the fourth-generation nuclear power systems, six candidate reactor types, including the ultrahigh temperature reactor, supercritical water reactor (Pegallapati et al, 2020;Deev et al, 2021), gas-cooled fast reactor (Matozinhos et al, 2022;Lima-Reinaldo and François, 2023), lead-cooled fast reactor (Massone et al, 2022;Lima-Reinaldo and François, 2023), sodium-cooled fast reactor (Tak et al, 2022), and molten salt reactor (Ingersoll et al, 2004;Delpech, 2013), have been proposed. Studies of new reactors and coupled power systems have been a research focus worldwide.…”