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Overall Heat Transfer Coefficient given By-Pass Factor Formula

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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. Check FAQs

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

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

Overall Heat Transfer Coefficient given By-Pass Factor Example

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Here is how the Overall Heat Transfer Coefficient given By-Pass Factor equation looks like with Values.

Here is how the Overall Heat Transfer Coefficient given By-Pass Factor equation looks like with Units.

Here is how the Overall Heat Transfer Coefficient given By-Pass Factor equation looks like.

63.7481 = - \frac{\ln (0.85) \cdot 6 \cdot 4.184}{64}

63.7481W/m²*K = - \frac{\ln (0.85) \cdot 6kg \cdot 4.184kJ/kg*K}{64m²}

63.7481 = - \frac{\ln (0.85) \cdot 6 \cdot 4.184}{64}

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Overall Heat Transfer Coefficient given By-Pass Factor Solution

Follow our step by step solution on how to calculate Overall Heat Transfer Coefficient given By-Pass Factor?

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

U = - \frac{\ln (0.85) \cdot 6kg \cdot 4.184kJ/kg*K}{64m²}

Next Step Convert Units

∴

U = - \frac{\ln (0.85) \cdot 6kg \cdot 4184J/(kg*K)}{64m²}

Next Step Prepare to Evaluate

∴

U = - \frac{\ln (0.85) \cdot 6 \cdot 4184}{64}

Next Step Evaluate

∴

U = 63.7480500955022W/m²*K

LAST Step Rounding Answer

∴

U = 63.7481W/m²*K

Overall Heat Transfer Coefficient given By-Pass Factor Formula Elements

Variables

Functions

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

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

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

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

The natural logarithm, also known as the logarithm to the base e, is the inverse function of the natural exponential function.

Syntax: ln(Number)

Other formulas in By Pass Factor category

Go By-Pass Factor of Heating Coil

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

Go By-Pass Factor of Cooling Coil

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

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

Overall Heat Transfer Coefficient given By-Pass Factor evaluator uses Overall Heat Transfer Coefficient = -(ln(By Pass Factor)*Mass of Air*Specific Heat Capacity)/Surface Area of Coil to evaluate 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 evaluate Overall Heat Transfer Coefficient given By-Pass Factor using this online evaluator? To use this online evaluator 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.

FAQs on Overall Heat Transfer Coefficient given By-Pass Factor

What is the formula to find Overall Heat Transfer Coefficient given By-Pass Factor?

The formula of Overall Heat Transfer Coefficient given By-Pass Factor is expressed as Overall Heat Transfer Coefficient = -(ln(By Pass Factor)*Mass of Air*Specific Heat Capacity)/Surface Area of Coil. Here is an example- 63.74805 = -(ln(0.85)*6*4184)/64.

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

With By Pass Factor (BPF), Mass of Air (m_air), Specific Heat Capacity (c) & Surface Area of Coil (A_c) we can find Overall Heat Transfer Coefficient given By-Pass Factor using the formula - Overall Heat Transfer Coefficient = -(ln(By Pass Factor)*Mass of Air*Specific Heat Capacity)/Surface Area of Coil. This formula also uses Natural Logarithm Function function(s).

Can the Overall Heat Transfer Coefficient given By-Pass Factor be negative?

Yes, the Overall Heat Transfer Coefficient given By-Pass Factor, measured in Heat Transfer Coefficient can be negative.

Which unit is used to measure Overall Heat Transfer Coefficient given By-Pass Factor?

Overall Heat Transfer Coefficient given By-Pass Factor is usually measured using the Watt per Square Meter per Kelvin[W/m²*K] for Heat Transfer Coefficient. Watt per Square Meter per Celcius[W/m²*K], Joule per Second per Square Meter per Kelvin[W/m²*K], Kilocalorie (IT) per Hour per Square Foot per Celcius[W/m²*K] are the few other units in which Overall Heat Transfer Coefficient given By-Pass Factor can be measured.

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Overall Heat Transfer Coefficient given By-Pass Factor Formula

Overall Heat Transfer Coefficient given By-Pass Factor Example

Overall Heat Transfer Coefficient given By-Pass Factor Solution

Overall Heat Transfer Coefficient given By-Pass Factor Formula Elements

Other formulas in By Pass Factor category

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

FAQs on Overall Heat Transfer Coefficient given By-Pass Factor

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