| S. no. | Name | Equation |
| 1 | Uchida (Rosa et al., 2009 [13]) | , h (W/m2) | 2 | Tagami steady state (Rosa et al., 2009 [13]) | , h (W/m2) | 3 | Debhi (Rosa et al., 2009 [13]) | , h (W/m2), P (Atm), L (m), T (K) | 4 | Kataoka (Rosa et al., 2009 [13]) | , h (W/m2) | 5 | Murase (Rosa et al., 2009 [13]) | , h (W/m2) | 6 | Liu (Lee and Kim, 2008 [14]) | , h (W/m2), P (Pa), T (K) | 7 | Green (Green and Almenas, 1996 [12]) | , h (W/m2), T (K) | 8 | Kawakubo (Kawakubo et al., 2009 [15]) | , h (Kw/m2), P (MPa) | 9 | Nusselt UCB Multiplier (Park et al., 1999 [16]) | where and a maximum fixed value of 2.0 is used in present paper. h (W/m2) and for for for | 10 | Nusselt LEE Multiplier (Lee and Kim, 2008 [14]) | where and , h (W/m2) | 11 | Proposed fit from all the curves | , h (W/m2) |
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