Reynolds Number for Condensate Film Outside Vertical Tubes in Heat Exchanger Solution

STEP 0: Pre-Calculation Summary
Formula Used
Reynold Number = 4*Mass Flowrate/(pi*Pipe Outer Diameter*Number of Tubes*Fluid Viscosity at Bulk Temperature)
Re = 4*Mflow/(pi*DOuter*NTubes*μfluid)
This formula uses 1 Constants, 5 Variables
Constants Used
pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288
Variables Used
Reynold Number - Reynold Number is defined as the ratio of inertial force to the viscous force of fluid.
Mass Flowrate - (Measured in Kilogram per Second) - Mass Flowrate is the mass of a substance that passes per unit of time.
Pipe Outer Diameter - (Measured in Meter) - Pipe Outer Diameter refers to the measurement of the outside or external diameter of a cylindrical pipe. It includes the pipe thickness into it.
Number of Tubes - Number of tubes in a heat exchanger refers to the count of individual tubes that form the heat transfer surface inside the heat exchanger.
Fluid Viscosity at Bulk Temperature - (Measured in Pascal Second) - Fluid viscosity at Bulk Temperature is a fundamental property of fluids that characterizes their resistance to flow. It is defined at the bulk temperature of the fluid.
STEP 1: Convert Input(s) to Base Unit
Mass Flowrate: 14 Kilogram per Second --> 14 Kilogram per Second No Conversion Required
Pipe Outer Diameter: 19 Millimeter --> 0.019 Meter (Check conversion ​here)
Number of Tubes: 55 --> No Conversion Required
Fluid Viscosity at Bulk Temperature: 1.005 Pascal Second --> 1.005 Pascal Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Re = 4*Mflow/(pi*DOuter*NTubesfluid) --> 4*14/(pi*0.019*55*1.005)
Evaluating ... ...
Re = 16.9728902152322
STEP 3: Convert Result to Output's Unit
16.9728902152322 --> No Conversion Required
FINAL ANSWER
16.9728902152322 16.97289 <-- Reynold Number
(Calculation completed in 00.020 seconds)

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Basic Formulas of Heat Exchanger Designs Calculators

Equivalent Diameter for Triangular Pitch in Heat Exchanger
​ LaTeX ​ Go Equivalent Diameter = (1.10/Pipe Outer Diameter)*((Tube Pitch^2)-0.917*(Pipe Outer Diameter^2))
Equivalent Diameter for Square Pitch in Heat Exchanger
​ LaTeX ​ Go Equivalent Diameter = (1.27/Pipe Outer Diameter)*((Tube Pitch^2)-0.785*(Pipe Outer Diameter^2))
Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch
​ LaTeX ​ Go Number of Tubes in Vertical Tube Row = Bundle Diameter/Tube Pitch
Number of Baffles in Shell and Tube Heat Exchanger
​ LaTeX ​ Go Number of Baffles = (Length of Tube/Baffle Spacing)-1

Reynolds Number for Condensate Film Outside Vertical Tubes in Heat Exchanger Formula

​LaTeX ​Go
Reynold Number = 4*Mass Flowrate/(pi*Pipe Outer Diameter*Number of Tubes*Fluid Viscosity at Bulk Temperature)
Re = 4*Mflow/(pi*DOuter*NTubes*μfluid)

What is Condenser?

Condenser is a special type of Heat Exchanger in which hot vapors transfer their latent heat to the colder fluid and thus results into condensation of vapors into liquid phase.

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 fluid) 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).

FAQ

What is Reynolds Number for Condensate Film Outside Vertical Tubes in Heat Exchanger?
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 and is represented as Re = 4*Mflow/(pi*DOuter*NTubesfluid) or Reynold Number = 4*Mass Flowrate/(pi*Pipe Outer Diameter*Number of Tubes*Fluid Viscosity at Bulk Temperature). Mass Flowrate is the mass of a substance that passes per unit of time, Pipe Outer Diameter refers to the measurement of the outside or external diameter of a cylindrical pipe. It includes the pipe thickness into it, Number of tubes in a heat exchanger refers to the count of individual tubes that form the heat transfer surface inside the heat exchanger & Fluid viscosity at Bulk Temperature is a fundamental property of fluids that characterizes their resistance to flow. It is defined at the bulk temperature of the fluid.
How to calculate Reynolds Number for Condensate Film Outside Vertical Tubes in Heat Exchanger?
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 is calculated using Reynold Number = 4*Mass Flowrate/(pi*Pipe Outer Diameter*Number of Tubes*Fluid Viscosity at Bulk Temperature). To calculate Reynolds Number for Condensate Film Outside Vertical Tubes in Heat Exchanger, you need Mass Flowrate (Mflow), Pipe Outer Diameter (DOuter), Number of Tubes (NTubes) & Fluid Viscosity at Bulk Temperature fluid). With our tool, you need to enter the respective value for Mass Flowrate, Pipe Outer Diameter, Number of Tubes & Fluid Viscosity at Bulk Temperature and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Reynold Number?
In this formula, Reynold Number uses Mass Flowrate, Pipe Outer Diameter, Number of Tubes & Fluid Viscosity at Bulk Temperature. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Reynold Number = 4*Mass Flowrate/(pi*Pipe Inner Diameter*Number of Tubes*Fluid Viscosity at Bulk Temperature)
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