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By-Pass Factor of Heating Coil Formula

GoBy-Pass Factor of Cooling Coil Formula

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By Pass Factor is the inability of a coil to cool or heat the air to its temperature. Check FAQs

BPF = \exp (- \frac{U \cdot A c}{m air \cdot c})

BPF - By Pass Factor?U - Overall Heat Transfer Coefficient?A_c - Surface Area of Coil?m_air - Mass of Air?c - Specific Heat Capacity?

By-Pass Factor of Heating Coil Example

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Here is how the By-Pass Factor of Heating Coil equation looks like with Values.

Here is how the By-Pass Factor of Heating Coil equation looks like with Units.

Here is how the By-Pass Factor of Heating Coil equation looks like.

0.8803 = \exp (- \frac{50 \cdot 64}{6 \cdot 4.184})

0.8803 = \exp (- \frac{50W/m²*K \cdot 64m²}{6kg \cdot 4.184kJ/kg*K})

0.8803 = \exp (- \frac{50 \cdot 64}{6 \cdot 4.184})

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By-Pass Factor of Heating Coil Solution

Follow our step by step solution on how to calculate By-Pass Factor of Heating Coil?

FIRST Step Consider the formula

BPF = \exp (- \frac{U \cdot A c}{m air \cdot c})

Next Step Substitute values of Variables

∴

BPF = \exp (- \frac{50W/m²*K \cdot 64m²}{6kg \cdot 4.184kJ/kg*K})

Next Step Convert Units

∴

BPF = \exp (- \frac{50W/m²*K \cdot 64m²}{6kg \cdot 4184J/(kg*K)})

Next Step Prepare to Evaluate

∴

BPF = \exp (- \frac{50 \cdot 64}{6 \cdot 4184})

Next Step Evaluate

∴

BPF = 0.880320066293238

LAST Step Rounding Answer

∴

BPF = 0.8803

By-Pass Factor of Heating Coil Formula Elements

Variables

Functions

By Pass Factor

By Pass Factor is the inability of a coil to cool or heat the air to its temperature.

Symbol: BPF

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find By Pass Factor

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.

Symbol: U

Measurement: Heat Transfer CoefficientUnit: W/m²*K

Note: Value can be positive or negative.

Formulas to find Overall Heat Transfer Coefficient

Surface Area of Coil

The Surface Area of Coil is the total area of the coil through which any fluid passes.

Symbol: A_c

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Surface Area of Coil

Mass of Air

Mass of Air is both a property of air and a measure of its resistance to acceleration when a net force is applied.

Symbol: m_air

Measurement: WeightUnit: kg

Note: Value should be greater than 0.

Formulas to find Mass of Air

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.

Symbol: c

Measurement: Specific Heat CapacityUnit: kJ/kg*K

Note: Value can be positive or negative.

Formulas to find Specific Heat Capacity

exp

n an exponential function, the value of the function changes by a constant factor for every unit change in the independent variable.

Syntax: exp(Number)

Other Formulas to find By Pass Factor

Go By-Pass Factor of Cooling Coil

BPF = \exp (- \frac{U \cdot A c}{m air \cdot c})

Other formulas in By Pass Factor category

Go Overall Heat Transfer Coefficient given By-Pass Factor

U = - \frac{\ln (BPF) \cdot m air \cdot c}{A c}

Go Surface Area of Coil given By-Pass Factor

A c = - \frac{\ln (BPF) \cdot m air \cdot c}{U}

Go Mass of Air Passing over Coil given By-Pass Factor

m air = - (\frac{U \cdot A c}{c \cdot \ln (BPF)})

Go Sensible Heat given Out by Coil using By-Pass Factor

SH = \frac{U \cdot A c \cdot (T f - T i)}{\ln (\frac{1}{BPF})}

How to Evaluate By-Pass Factor of Heating Coil?

By-Pass Factor of Heating Coil evaluator uses By Pass Factor = exp(-(Overall Heat Transfer Coefficient*Surface Area of Coil)/(Mass of Air*Specific Heat Capacity)) to evaluate the By Pass Factor, By-Pass Factor of Heating Coil formula is defined as a dimensionless quantity that represents the ratio of the heat transferred from the heating coil to the air stream to the maximum possible heat transfer, indicating the coil's heat transfer effectiveness in an air heating system. By Pass Factor is denoted by BPF symbol.

How to evaluate By-Pass Factor of Heating Coil using this online evaluator? To use this online evaluator for By-Pass Factor of Heating Coil, enter Overall Heat Transfer Coefficient (U), Surface Area of Coil (A_c), Mass of Air (m_air) & Specific Heat Capacity (c) and hit the calculate button.

FAQs on By-Pass Factor of Heating Coil

What is the formula to find By-Pass Factor of Heating Coil?

The formula of By-Pass Factor of Heating Coil is expressed as By Pass Factor = exp(-(Overall Heat Transfer Coefficient*Surface Area of Coil)/(Mass of Air*Specific Heat Capacity)). Here is an example- 0.88032 = exp(-(50*64)/(6*4184)).

How to calculate By-Pass Factor of Heating Coil?

With Overall Heat Transfer Coefficient (U), Surface Area of Coil (A_c), Mass of Air (m_air) & Specific Heat Capacity (c) we can find By-Pass Factor of Heating Coil using the formula - By Pass Factor = exp(-(Overall Heat Transfer Coefficient*Surface Area of Coil)/(Mass of Air*Specific Heat Capacity)). This formula also uses Exponential Growth (exp) function(s).

What are the other ways to Calculate By Pass Factor?

Here are the different ways to Calculate By Pass Factor-

By Pass Factor=exp(-(Overall Heat Transfer Coefficient*Surface Area of Coil)/(Mass of Air*Specific Heat Capacity))

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By-Pass Factor of Heating Coil Formula

​GoBy-Pass Factor of Cooling Coil Formula

By-Pass Factor of Heating Coil Example

By-Pass Factor of Heating Coil Solution

By-Pass Factor of Heating Coil Formula Elements

Other Formulas to find By Pass Factor

Other formulas in By Pass Factor category

How to Evaluate By-Pass Factor of Heating Coil?

FAQs on By-Pass Factor of Heating Coil

Variable Name

GoBy-Pass Factor of Cooling Coil Formula