Critical flow maps using an extended Henry–Fauske model

A proposed correlation for critical flow rate of water flow

“…1. In addition, another map of the corresponding critical pressure at the choking point was also presented in that study by Kim [3]. In another study by Kim [9], a new correlation predicting the idealized critical mass flux of subcooled and saturated water was suggested, which can be applicable for a wide range of stagnation pressures (e.g., 0.5e20.0 MPa).…”

“…Kim [3] suggested more practicable critical flow maps for a critical mass flux and pressure of a steam-water flow with respect to the upstream stagnation conditions using an extended HenryeFauske model [4]. A comparison with the selected test data, for example, Fauske [5], Sozzi and Sutherland [6], Marviken [7], and Park [8], suggested that critical flow maps showed conservative predictions within reasonable ranges.…”

“…In this report, the application of the correlation proposed previously [9] was extended to the entire range of steam-water flows (e.g., subcooled, saturated water, and two-phase steamwater flows), which simulates the whole regions of the suggested critical mass flux map [3] within a reasonable range of error.…”

“…A comparison with the selected test data, for example, Fauske [5], Sozzi and Sutherland [6], Marviken [7], and Park [8], suggested that critical flow maps showed conservative predictions within reasonable ranges. As a result of the study by Kim [3], a new critical mass flux map based on upstream stagnation E-mail address: yskim3@kaeri.re.kr. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http:// creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.…”

“…To check the feasibility of Equation 2, idealized critical mass fluxes [3] were compared with those of Equation 2 for four different upstream pressure conditions, namely, 1.0 MPa, 5.0 MPa, 10.0 MPa, and 15.0 MPa, as shown in Fig. 2.…”