Overall Heat Transfer Coefficient given By-Pass Factor Calculator

✖By Pass Factor is the inability of a coil to cool or heat the air to its temperature.ⓘ By Pass Factor [BPF]			+10% -10%
✖Mass of Air is both a property of air and a measure of its resistance to acceleration when a net force is applied.ⓘ Mass of Air [m_air]			+10% -10%
✖Specific Heat Capacity is the heat required to raise the temperature of the unit mass of a given substance by a given amount.ⓘ Specific Heat Capacity [c]			+10% -10%
✖The Surface Area of Coil is the total area of the coil through which any fluid passes.ⓘ Surface Area of Coil [A_c]			+10% -10%

✖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.ⓘ Overall Heat Transfer Coefficient given By-Pass Factor [U]

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Overall Heat Transfer Coefficient given By-Pass Factor Solution

STEP 0: Pre-Calculation Summary

Formula Used

Overall Heat Transfer Coefficient = -(ln(By Pass Factor)*Mass of Air*Specific Heat Capacity)/Surface Area of Coil
U = -(ln(BPF)*m_air*c)/A_c
This formula uses 1 Functions, 5 Variables

Functions Used

ln - The natural logarithm, also known as the logarithm to the base e, is the inverse function of the natural exponential function., ln(Number)

Variables Used

Overall Heat Transfer Coefficient - (Measured in Watt per Square Meter per Kelvin) - 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.
By Pass Factor - By Pass Factor is the inability of a coil to cool or heat the air to its temperature.
Mass of Air - (Measured in Kilogram) - Mass of Air is both a property of air and a measure of its resistance to acceleration when a net force is applied.
Specific Heat Capacity - (Measured in Joule per Kilogram per K) - Specific Heat Capacity is the heat required to raise the temperature of the unit mass of a given substance by a given amount.
Surface Area of Coil - (Measured in Square Meter) - The Surface Area of Coil is the total area of the coil through which any fluid passes.

STEP 1: Convert Input(s) to Base Unit

By Pass Factor: 0.85 --> No Conversion Required
Mass of Air: 6 Kilogram --> 6 Kilogram No Conversion Required
Specific Heat Capacity: 4.184 Kilojoule per Kilogram per K --> 4184 Joule per Kilogram per K (Check conversion here)
Surface Area of Coil: 64 Square Meter --> 64 Square Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

U = -(ln(BPF)*m_air*c)/A_c --> -(ln(0.85)*6*4184)/64

Evaluating ... ...

U = 63.7480500955022

STEP 3: Convert Result to Output's Unit

63.7480500955022 Watt per Square Meter per Kelvin --> No Conversion Required

FINAL ANSWER

63.7480500955022 ≈ 63.74805 Watt per Square Meter per Kelvin <-- Overall Heat Transfer Coefficient

(Calculation completed in 00.004 seconds)

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Home » Physics » Refrigeration and Air Conditioning » Psychrometry » Mechanical » By Pass Factor » Overall Heat Transfer Coefficient given By-Pass Factor

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< By Pass Factor Calculators

By-Pass Factor of Heating Coil

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

By-Pass Factor of Cooling Coil

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

Overall Heat Transfer Coefficient given By-Pass Factor

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

Surface Area of Coil given By-Pass Factor

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

Overall Heat Transfer Coefficient given By-Pass Factor Formula

LaTeX Go

Overall Heat Transfer Coefficient = -(ln(By Pass Factor)*Mass of Air*Specific Heat Capacity)/Surface Area of Coil
U = -(ln(BPF)*m_air*c)/A_c

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 Overall Heat Transfer Coefficient given By-Pass Factor?

Overall Heat Transfer Coefficient given By-Pass Factor calculator uses Overall Heat Transfer Coefficient = -(ln(By Pass Factor)*Mass of Air*Specific Heat Capacity)/Surface Area of Coil to calculate the Overall Heat Transfer Coefficient, Overall Heat Transfer Coefficient given By-Pass Factor formula is defined as a measure of the total heat transfer between a fluid and its surroundings, taking into account the bypass factor that affects the heat transfer process in a system. It is an important parameter in designing and optimizing heat exchangers and other thermal systems. Overall Heat Transfer Coefficient is denoted by U symbol.

How to calculate Overall Heat Transfer Coefficient given By-Pass Factor using this online calculator? To use this online calculator for Overall Heat Transfer Coefficient given By-Pass Factor, enter By Pass Factor (BPF), Mass of Air (m_air), Specific Heat Capacity (c) & Surface Area of Coil (A_c) and hit the calculate button. Here is how the Overall Heat Transfer Coefficient given By-Pass Factor calculation can be explained with given input values -> 63.74805 = -(ln(0.85)*6*4184)/64.

FAQ

What is Overall Heat Transfer Coefficient given By-Pass Factor?

Overall Heat Transfer Coefficient given By-Pass Factor formula is defined as a measure of the total heat transfer between a fluid and its surroundings, taking into account the bypass factor that affects the heat transfer process in a system. It is an important parameter in designing and optimizing heat exchangers and other thermal systems and is represented as U = -(ln(BPF)*m_air*c)/A_c or Overall Heat Transfer Coefficient = -(ln(By Pass Factor)*Mass of Air*Specific Heat Capacity)/Surface Area of Coil. By Pass Factor is the inability of a coil to cool or heat the air to its temperature, Mass of Air is both a property of air and a measure of its resistance to acceleration when a net force is applied, Specific Heat Capacity is the heat required to raise the temperature of the unit mass of a given substance by a given amount & The Surface Area of Coil is the total area of the coil through which any fluid passes.

How to calculate Overall Heat Transfer Coefficient given By-Pass Factor?

Overall Heat Transfer Coefficient given By-Pass Factor formula is defined as a measure of the total heat transfer between a fluid and its surroundings, taking into account the bypass factor that affects the heat transfer process in a system. It is an important parameter in designing and optimizing heat exchangers and other thermal systems is calculated using Overall Heat Transfer Coefficient = -(ln(By Pass Factor)*Mass of Air*Specific Heat Capacity)/Surface Area of Coil. To calculate Overall Heat Transfer Coefficient given By-Pass Factor, you need By Pass Factor (BPF), Mass of Air (m_air), Specific Heat Capacity (c) & Surface Area of Coil (A_c). With our tool, you need to enter the respective value for By Pass Factor, Mass of Air, Specific Heat Capacity & Surface Area of Coil and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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