What is the Significance of Reynolds Number in Heat Transfer of Condensing Vapors?
The heat transfer coefficient (h) is a measure of how effectively heat is transferred from a hotter surface to a cooler fluid. In the context of condensing vapor, the Reynolds number is relevant because it helps determine the flow regime over the surface where condensation is taking place.
As condensation occurs on a surface, it can influence the flow behavior. If the vapor condenses into droplets or a thin liquid film, it can alter the Reynolds number and transition the flow from laminar to turbulent, even at relatively lower velocities. This transition can significantly enhance the heat transfer coefficient, resulting in improved heat transfer rates during condensation.
How to Calculate Reynolds Number for Condensate Film Outside Vertical Tubes in Heat Exchanger?
Reynolds Number for Condensate Film Outside Vertical Tubes in Heat Exchanger calculator uses Reynold Number = 4*Mass Flowrate/(pi*Pipe Outer Diameter*Number of Tubes*Fluid Viscosity at Bulk Temperature) to calculate the Reynold Number, The Reynolds Number for Condensate Film Outside Vertical Tubes In Heat Exchanger formula defines the presence of waves on the condensate film. The increase in this Reynolds number increases the heat transfer coefficient. Reynold Number is denoted by Re symbol.
How to calculate Reynolds Number for Condensate Film Outside Vertical Tubes in Heat Exchanger using this online calculator? To use this online calculator for Reynolds Number for Condensate Film Outside Vertical Tubes in Heat Exchanger, enter Mass Flowrate (Mflow), Pipe Outer Diameter (DOuter), Number of Tubes (NTubes) & Fluid Viscosity at Bulk Temperature (μfluid) and hit the calculate button. Here is how the Reynolds Number for Condensate Film Outside Vertical Tubes in Heat Exchanger calculation can be explained with given input values -> 16.97289 = 4*14/(pi*0.019*55*1.005).