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Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU Formula

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Log Mean Temperature Difference is the logarithmic temperature difference averaged between 2 fluid streams exchanging heat. Check FAQs

ΔT LMTD = \frac{T Outlet - T Inlet}{NTU}

ΔT_LMTD - Log Mean Temperature Difference?T_Outlet - Outlet Temperature?T_Inlet - Inlet Temperature?NTU - Number of Transfer Units?

Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU Example

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Here is how the Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU equation looks like with Values.

Here is how the Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU equation looks like with Units.

Here is how the Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU equation looks like.

39.1667 = \frac{345 - 298}{1.2}

39.1667K = \frac{345K - 298K}{1.2}

39.1667 = \frac{345 - 298}{1.2}

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Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU Solution

Follow our step by step solution on how to calculate Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU?

FIRST Step Consider the formula

ΔT LMTD = \frac{T Outlet - T Inlet}{NTU}

Next Step Substitute values of Variables

∴

ΔT LMTD = \frac{345K - 298K}{1.2}

Next Step Prepare to Evaluate

∴

ΔT LMTD = \frac{345 - 298}{1.2}

Next Step Evaluate

∴

ΔT LMTD = 39.1666666666667K

LAST Step Rounding Answer

∴

ΔT LMTD = 39.1667K

Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU Formula Elements

Variables

Log Mean Temperature Difference

Log Mean Temperature Difference is the logarithmic temperature difference averaged between 2 fluid streams exchanging heat.

Symbol: ΔT_LMTD

Measurement: TemperatureUnit: K

Note: Value should be greater than 0.

Formulas to find Log Mean Temperature Difference

Outlet Temperature

Outlet Temperature of Fluid is temperature that it attained after passing through a heat exchanger.

Symbol: T_Outlet

Measurement: TemperatureUnit: K

Note: Value should be greater than 0.

Formulas to find Outlet Temperature

Inlet Temperature

Inlet Temperature is the temperature of fluid before entering into a heat exchanger.

Symbol: T_Inlet

Measurement: TemperatureUnit: K

Note: Value should be greater than 0.

Formulas to find Inlet Temperature

Number of Transfer Units

Number of Transfer Units is a dimensionless parameter used to characterize the heat transfer performance of Heat Exchanger.

Symbol: NTU

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Number of Transfer Units

Other formulas in Basic Formulas of Heat Exchanger Designs category

Go Equivalent Diameter for Square Pitch in Heat Exchanger

D e = (\frac{1.27}{D Outer}) \cdot (({P Tube}^{2}) - 0.785 \cdot ({D Outer}^{2}))

Go Equivalent Diameter for Triangular Pitch in Heat Exchanger

D e = (\frac{1.10}{D Outer}) \cdot (({P Tube}^{2}) - 0.917 \cdot ({D Outer}^{2}))

Go Number of Baffles in Shell and Tube Heat Exchanger

N Baffles = (\frac{L Tube}{L Baffle}) - 1

Go Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch

N r = \frac{D B}{P Tube}

How to Evaluate Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU?

Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU evaluator uses Log Mean Temperature Difference = (Outlet Temperature-Inlet Temperature)/Number of Transfer Units to evaluate the Log Mean Temperature Difference, The Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU formula is defined as the temperature driving force for heat transfer between two fluid streams in a heat exchanger. Log Mean Temperature Difference is denoted by ΔT_LMTD symbol.

How to evaluate Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU using this online evaluator? To use this online evaluator for Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU, enter Outlet Temperature (T_Outlet), Inlet Temperature (T_Inlet) & Number of Transfer Units (NTU) and hit the calculate button.

FAQs on Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU

What is the formula to find Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU?

The formula of Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU is expressed as Log Mean Temperature Difference = (Outlet Temperature-Inlet Temperature)/Number of Transfer Units. Here is an example- 39.16667 = (345-298)/1.2.

How to calculate Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU?

With Outlet Temperature (T_Outlet), Inlet Temperature (T_Inlet) & Number of Transfer Units (NTU) we can find Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU using the formula - Log Mean Temperature Difference = (Outlet Temperature-Inlet Temperature)/Number of Transfer Units.

Can the Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU be negative?

No, the Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU, measured in Temperature cannot be negative.

Which unit is used to measure Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU?

Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU is usually measured using the Kelvin[K] for Temperature. Celsius[K], Fahrenheit[K], Rankine[K] are the few other units in which Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU can be measured.

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Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU Formula

Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU Example

Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU Solution

Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU Formula Elements

Other formulas in Basic Formulas of Heat Exchanger Designs category

How to Evaluate Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU?

FAQs on Log Mean Temperature Difference in Plate Heat Exchanger Given Fluid Temperature and NTU

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