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Heat Exchanger Effectiveness Formula

GoHeat Exchanger Effectiveness for Minimum Fluid Formula

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The effectiveness of heat exchanger is defined as the ratio of the actual heat transfer to the maximum possible heat transfer. Check FAQs

ϵ = \frac{Q Actual}{Q Max}

ϵ - Effectiveness of Heat Exchanger?Q_Actual - Actual Rate of Heat Transfer?Q_Max - Maximum Possible Rate of Heat Transfer?

Heat Exchanger Effectiveness Example

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Here is how the Heat Exchanger Effectiveness equation looks like with Values.

Here is how the Heat Exchanger Effectiveness equation looks like with Units.

Here is how the Heat Exchanger Effectiveness equation looks like.

0.0167 = \frac{999}{60000}

0.0167 = \frac{999J/s}{60000J/s}

0.0167 = \frac{999}{60000}

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Heat Exchanger Effectiveness Solution

Follow our step by step solution on how to calculate Heat Exchanger Effectiveness?

FIRST Step Consider the formula

ϵ = \frac{Q Actual}{Q Max}

Next Step Substitute values of Variables

∴

ϵ = \frac{999J/s}{60000J/s}

Next Step Prepare to Evaluate

∴

ϵ = \frac{999}{60000}

Next Step Evaluate

∴

ϵ = 0.01665

LAST Step Rounding Answer

∴

ϵ = 0.0167

Heat Exchanger Effectiveness Formula Elements

Variables

Effectiveness of Heat Exchanger

The effectiveness of heat exchanger is defined as the ratio of the actual heat transfer to the maximum possible heat transfer.

Symbol: ϵ

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Effectiveness of Heat Exchanger

Actual Rate of Heat Transfer

Actual Rate of Heat Transfer is the amount of heat that is transferred per unit of time in some material.

Symbol: Q_Actual

Measurement: Rate of Heat TransferUnit: J/s

Note: Value should be greater than 0.

Formulas to find Actual Rate of Heat Transfer

Maximum Possible Rate of Heat Transfer

Maximum Possible Rate of Heat Transfer is defined as the maximum amount of heat that is transferred per unit of time in some material.

Symbol: Q_Max

Measurement: Rate of Heat TransferUnit: J/s

Note: Value should be greater than 0.

Formulas to find Maximum Possible Rate of Heat Transfer

Other Formulas to find Effectiveness of Heat Exchanger

Go Heat Exchanger Effectiveness for Minimum Fluid

ϵ = \frac{ΔT Min Fluid}{ΔT Max HE}

Other formulas in Effectiveness of Heat Exchanger category

Go Capacity Rate

C = ṁ \cdot c

Go Fouling Factor

R f = (\frac{1}{U d}) - (\frac{1}{U})

Go Heat Transfer in Heat Exchanger given Cold Fluid Properties

Q = mod \underset{̲}{u} s (m c \cdot c c \cdot (T ci - T co))

Go Heat Transfer in Heat Exchanger given Hot Fluid Properties

Q = m h \cdot c h \cdot (T hi - T ho)

How to Evaluate Heat Exchanger Effectiveness?

Heat Exchanger Effectiveness evaluator uses Effectiveness of Heat Exchanger = Actual Rate of Heat Transfer/Maximum Possible Rate of Heat Transfer to evaluate the Effectiveness of Heat Exchanger, The Heat Exchanger Effectiveness formula is defined as the ratio of the rate of actual heat transfer to the rate of maximum possible heat transfer. It allows engineers to predict how a given heat exchanger will perform a new job. Effectiveness of Heat Exchanger is denoted by ϵ symbol.

How to evaluate Heat Exchanger Effectiveness using this online evaluator? To use this online evaluator for Heat Exchanger Effectiveness, enter Actual Rate of Heat Transfer (Q_Actual) & Maximum Possible Rate of Heat Transfer (Q_Max) and hit the calculate button.

FAQs on Heat Exchanger Effectiveness

What is the formula to find Heat Exchanger Effectiveness?

The formula of Heat Exchanger Effectiveness is expressed as Effectiveness of Heat Exchanger = Actual Rate of Heat Transfer/Maximum Possible Rate of Heat Transfer. Here is an example- 0.01665 = 999/60000.

How to calculate Heat Exchanger Effectiveness?

With Actual Rate of Heat Transfer (Q_Actual) & Maximum Possible Rate of Heat Transfer (Q_Max) we can find Heat Exchanger Effectiveness using the formula - Effectiveness of Heat Exchanger = Actual Rate of Heat Transfer/Maximum Possible Rate of Heat Transfer.

What are the other ways to Calculate Effectiveness of Heat Exchanger?

Here are the different ways to Calculate Effectiveness of Heat Exchanger-

Effectiveness of Heat Exchanger=Temperature Difference of Minimum Fluid/Maximum Temperature Difference in Heat Exchanger

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Heat Exchanger Effectiveness Formula

​GoHeat Exchanger Effectiveness for Minimum Fluid Formula

Heat Exchanger Effectiveness Example

Heat Exchanger Effectiveness Solution

Heat Exchanger Effectiveness Formula Elements

Other Formulas to find Effectiveness of Heat Exchanger

Other formulas in Effectiveness of Heat Exchanger category

How to Evaluate Heat Exchanger Effectiveness?

FAQs on Heat Exchanger Effectiveness

Variable Name

GoHeat Exchanger Effectiveness for Minimum Fluid Formula