Water at atmospheric pressure enters a 1.2 [cm] ID, 2.4 [m] long electrically heated vertical pipe at a subcooling of 15 [℃]. the inlet velocity of water is 1.1 [m/s], and the heated power is 8 [kW]. Using the homogenous equilibrium model (HEM) of the two-phase flow, determine the following parameters. The length of the boiling section of the channel The liquid and the vapor mass flow rates at the exit of the channel The liquid and the vapor volumetric flow rates at the exit of the channel
Water at atmospheric pressure enters a 1.2 [cm] ID, 2.4 [m] long electrically heated vertical pipe at a subcooling of 15 [℃]. the inlet velocity of water is 1.1 [m/s], and the heated power is 8 [kW]. Using the homogenous equilibrium model (HEM) of the two-phase flow, determine the following parameters.
The length of the boiling section of the channel
The liquid and the vapor mass flow rates at the exit of the channel
The liquid and the vapor volumetric flow rates at the exit of the channel
The exit quality
The exit void fraction
Plot the axial distributions of the flow quality and the void fraction along the channel
How will your answer to parts (e) change if the two-phase flow in the boiling section experienced phasic slip with a constant slip ratio, S = 1.6?
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