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Mass of air passing over the coil given by-pass factor Solution

STEP 0: Pre-Calculation Summary
Formula Used
mass_of_air = -((Overall heat transfer coefficient*Surface area of coil)/(Specific Heat Capacity*ln(By pass factor)))
mair = -((U*Ac)/(c*ln(BPF)))
This formula uses 1 Functions, 4 Variables
Functions Used
ln - Natural logarithm function (base e), ln(Number)
Variables Used
Overall heat transfer coefficient - Overall heat transfer coefficient is the overall convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid. (Measured in Watt per Meter² per K)
Surface area of coil - The surface area of coil is the total area of the coil through which any fluid passes. (Measured in Square Meter)
Specific Heat Capacity - Specific Heat Capacity is the heat required to raise the temperature of the unit mass of a given substance by a given amount. (Measured in Kilojoule per Kilogram per K)
By pass factor- By pass factor is the inability of a coil to cool or heat the air to its temperature.
STEP 1: Convert Input(s) to Base Unit
Overall heat transfer coefficient: 50 Watt per Meter² per K --> 50 Watt per Meter² per K No Conversion Required
Surface area of coil: 80 Square Meter --> 80 Square Meter No Conversion Required
Specific Heat Capacity: 4.184 Kilojoule per Kilogram per K --> 4184 Joule per Kilogram per K (Check conversion here)
By pass factor: 0.8 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
mair = -((U*Ac)/(c*ln(BPF))) --> -((50*80)/(4184*ln(0.8)))
Evaluating ... ...
mair = 4.28434045671563
STEP 3: Convert Result to Output's Unit
4.28434045671563 Kilogram --> No Conversion Required
FINAL ANSWER
4.28434045671563 Kilogram <-- Mass of air
(Calculation completed in 00.000 seconds)

7 By-pass Factor of Heating and Cooling coil Calculators

Sensible heat given out by coil using by-pass factor
sensible_heat = (Overall heat transfer coefficient*Surface area of coil*(Final Temperature-Initial Temperature))/ln(1/By pass factor) Go
Mass of air passing over the coil given by-pass factor
mass_of_air = -((Overall heat transfer coefficient*Surface area of coil)/(Specific Heat Capacity*ln(By pass factor))) Go
By-pass Factor of heating coil
bypassfactor = exp(-((Overall heat transfer coefficient*Surface area of coil)/(Mass of air*Specific Heat Capacity))) Go
By-pass Factor of cooling coil
bypassfactor = exp(-((Overall heat transfer coefficient*Surface area of coil)/(Mass of air*Specific Heat Capacity))) Go
Overall heat transfer coefficient given by-pass factor
overall_heat_trasnfer_coeffiecnt = -((ln(By pass factor)*Mass of air*Specific Heat Capacity)/Surface area of coil) Go
Surface area of coil given by-pass factor
Surface_area_coil = -((ln(By pass factor)*Mass of air*Specific Heat Capacity)/Overall heat transfer coefficient) Go
LMTD of coil given by-pass factor
logarithmic_mean_temperature_difference = (Final Temperature-Initial Temperature)/ln(1/By pass factor) Go

Mass of air passing over the coil given by-pass factor Formula

mass_of_air = -((Overall heat transfer coefficient*Surface area of coil)/(Specific Heat Capacity*ln(By pass factor)))
mair = -((U*Ac)/(c*ln(BPF)))

What is By-pass factor?

The inability of a coil to cool or heat the air to its temperature is indicated by a factor called the by-pass factor (BPF) or Coil Bypass Factor. This inability is due to the coil inefficiency and some amount of air just bypassing the coil without getting affected by it. A coil with low BPF has better performance. BPF can also be defined as the ratio of air that is unaffected by the coil to the total quantity of air passing over the coil.

How to Calculate Mass of air passing over the coil given by-pass factor?

Mass of air passing over the coil given by-pass factor calculator uses mass_of_air = -((Overall heat transfer coefficient*Surface area of coil)/(Specific Heat Capacity*ln(By pass factor))) to calculate the Mass of air, The Mass of air passing over the coil given by-pass factor formula calculates the mass of air that passes through the coil by using the by-pass factor. Mass of air is denoted by mair symbol.

How to calculate Mass of air passing over the coil given by-pass factor using this online calculator? To use this online calculator for Mass of air passing over the coil given by-pass factor, enter Overall heat transfer coefficient (U), Surface area of coil (Ac), Specific Heat Capacity (c) & By pass factor (BPF) and hit the calculate button. Here is how the Mass of air passing over the coil given by-pass factor calculation can be explained with given input values -> 4.28434 = -((50*80)/(4184*ln(0.8))).

FAQ

What is Mass of air passing over the coil given by-pass factor?
The Mass of air passing over the coil given by-pass factor formula calculates the mass of air that passes through the coil by using the by-pass factor and is represented as mair = -((U*Ac)/(c*ln(BPF))) or mass_of_air = -((Overall heat transfer coefficient*Surface area of coil)/(Specific Heat Capacity*ln(By pass factor))). Overall heat transfer coefficient is the overall convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid, The surface area of coil is the total area of the coil through which any fluid passes, Specific Heat Capacity is the heat required to raise the temperature of the unit mass of a given substance by a given amount & By pass factor is the inability of a coil to cool or heat the air to its temperature.
How to calculate Mass of air passing over the coil given by-pass factor?
The Mass of air passing over the coil given by-pass factor formula calculates the mass of air that passes through the coil by using the by-pass factor is calculated using mass_of_air = -((Overall heat transfer coefficient*Surface area of coil)/(Specific Heat Capacity*ln(By pass factor))). To calculate Mass of air passing over the coil given by-pass factor, you need Overall heat transfer coefficient (U), Surface area of coil (Ac), Specific Heat Capacity (c) & By pass factor (BPF). With our tool, you need to enter the respective value for Overall heat transfer coefficient, Surface area of coil, Specific Heat Capacity & By pass factor 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 Mass of air?
In this formula, Mass of air uses Overall heat transfer coefficient, Surface area of coil, Specific Heat Capacity & By pass factor. We can use 7 other way(s) to calculate the same, which is/are as follows -
  • bypassfactor = exp(-((Overall heat transfer coefficient*Surface area of coil)/(Mass of air*Specific Heat Capacity)))
  • bypassfactor = exp(-((Overall heat transfer coefficient*Surface area of coil)/(Mass of air*Specific Heat Capacity)))
  • overall_heat_trasnfer_coeffiecnt = -((ln(By pass factor)*Mass of air*Specific Heat Capacity)/Surface area of coil)
  • Surface_area_coil = -((ln(By pass factor)*Mass of air*Specific Heat Capacity)/Overall heat transfer coefficient)
  • mass_of_air = -((Overall heat transfer coefficient*Surface area of coil)/(Specific Heat Capacity*ln(By pass factor)))
  • sensible_heat = (Overall heat transfer coefficient*Surface area of coil*(Final Temperature-Initial Temperature))/ln(1/By pass factor)
  • logarithmic_mean_temperature_difference = (Final Temperature-Initial Temperature)/ln(1/By pass factor)
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