A 10 cm 10 cm horizontal flat heater is used for vaporizing refrigerant-134a at 350 kPa.

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A 10 cm × 10 cm horizontal flat heater is used for vaporizing refrigerant-134a at 350 kPa. The heater is supplied with 0.35 MW/m2 of heat flux, and the surface temperature of the heater is 25°C. If the experimental constant in the Rohsenow correlation is n = 1.7, determine the value of the coefficient Csf. Discuss whether or not the Rohsenow correlation is applicable in this analysis.

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