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Description: Heat transfer coefficients for flow boiling in microchannels.

Reference: Tibiriça, C. B.; Rocha, D. M. ; Sueth JR., I. L. S. ; Bochio, G. ; Shimizu, G. K. K. ; Barbosa, M. C. ; Ferreira, S. S. . A complete set of simple and optimized correlations for microchannel flow boiling and two-phase flow applications. APPLIED THERMAL ENGINEERING, v. 126, p. 774-795, 2017.
Equations/Symbols:

Reference: Kanizawa, F.T.; Tibiriça, C. B.; Ribatski,G. Heat transfer during convective boiling inside microchannels. International Journal of Heat and Mass Transfer 93 566-583, 2016.
Equations/Symbols:

Calculate:
Insert saturation temperature (Tsat), mass velocity (G), heat flux (q), vapor quality (x), tube diameter (D), inlet vapor quality (x_in) and press 'Calculate'.

Fluid: R134a Water Tsat (K): G (kg/s/m²): q (W/m²): x (-): D (m):
x_in (-): [used only for post-dryout heat transfer coefficient in Tibiriça et al. 2017]
Tube material: Stainless stell Copper [used only for Kanizawa et al 2016 correlation with cryogenic fluids]

Fluid properties: ρl=1,191.95 kg/m3 cpl=1,440.13 J/(kg.K) μl=0.000185310 Pa.s kl=0.0814 W/(m.K) hlv=174,184.70 J/kg σ=0.007527 N/m	Dimensionless numbers Rel=3,237.82 Prl=3.28 Lal=261,256.08 Bo=0.00033489	Heat transfer coefficient hTibirica2017=9,087.95 W/m2.K hKanizawa2016=9,515.37 W/m2.K

Heat Transfer Research Group - HTRG
University of Sao Paulo - USP