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Mass flow rate of hot fluid Formula

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The Mass Flow Rate of Hot Fluid is the quantity of hot fluid passing through a system per unit time, essential for analyzing heat transfer in heat exchangers. Check FAQs

mh = (ϵ \cdot \frac{C min}{ch}) \cdot (\frac{1}{\frac{T1 - t2}{T1 - t1}})

mh - Mass Flow Rate of Hot Fluid?ϵ - Effectiveness of Heat Exchanger?C_min - Minimum heat capacity?ch - Specific heat of hot fluid?T1 - Entry Temperature of Hot Fluid?t2 - Exit Temperature of Cold Fluid?t1 - Entry Temperature of Cold Fluid?

Mass flow rate of hot fluid Example

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Here is how the Mass flow rate of hot fluid equation looks like with Values.

Here is how the Mass flow rate of hot fluid equation looks like with Units.

Here is how the Mass flow rate of hot fluid equation looks like.

30.4762 = (8 \cdot \frac{4}{1.5}) \cdot (\frac{1}{\frac{60 - 25}{60 - 10}})

30.4762kg/s = (8 \cdot \frac{4J/K}{1.5J/(kg*K)}) \cdot (\frac{1}{\frac{60K - 25K}{60K - 10K}})

30.4762 = (8 \cdot \frac{4}{1.5}) \cdot (\frac{1}{\frac{60 - 25}{60 - 10}})

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Heat and Mass Transfer » fx Mass flow rate of hot fluid

Mass flow rate of hot fluid Solution

Follow our step by step solution on how to calculate Mass flow rate of hot fluid?

FIRST Step Consider the formula

mh = (ϵ \cdot \frac{C min}{ch}) \cdot (\frac{1}{\frac{T1 - t2}{T1 - t1}})

Next Step Substitute values of Variables

∴

mh = (8 \cdot \frac{4J/K}{1.5J/(kg*K)}) \cdot (\frac{1}{\frac{60K - 25K}{60K - 10K}})

Next Step Prepare to Evaluate

∴

mh = (8 \cdot \frac{4}{1.5}) \cdot (\frac{1}{\frac{60 - 25}{60 - 10}})

Next Step Evaluate

∴

mh = 30.4761904761905kg/s

LAST Step Rounding Answer

∴

mh = 30.4762kg/s

Mass flow rate of hot fluid Formula Elements

Variables

Mass Flow Rate of Hot Fluid

The Mass Flow Rate of Hot Fluid is the quantity of hot fluid passing through a system per unit time, essential for analyzing heat transfer in heat exchangers.

Symbol: mh

Measurement: Mass Flow RateUnit: kg/s

Note: Value should be greater than 0.

Formulas to find Mass Flow Rate of Hot Fluid

Open Variable

Effectiveness of Heat Exchanger

The Effectiveness of Heat Exchanger is a measure of how well a heat exchanger transfers heat compared to the maximum possible heat transfer under ideal conditions.

Symbol: ϵ

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Effectiveness of Heat Exchanger

Open Variable

Minimum heat capacity

The Minimum heat capacity is the lowest amount of heat required to change the temperature of a substance, crucial for understanding thermal performance in heat exchangers.

Symbol: C_min

Measurement: Heat CapacityUnit: J/K

Note: Value can be positive or negative.

Formulas to find Minimum heat capacity

Open Variable

Specific heat of hot fluid

The Specific heat of hot fluid is the amount of heat required to raise the temperature of a unit mass of the fluid by one degree Celsius.

Symbol: ch

Measurement: Specific Heat CapacityUnit: J/(kg*K)

Note: Value can be positive or negative.

Formulas to find Specific heat of hot fluid

Open Variable

Entry Temperature of Hot Fluid

The Entry Temperature of Hot Fluid is the initial temperature of the fluid entering the heat exchanger, influencing the heat transfer efficiency and overall performance of the system.

Symbol: T1

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Entry Temperature of Hot Fluid

Open Variable

Exit Temperature of Cold Fluid

The Exit Temperature of Cold Fluid is the temperature at which the cold fluid exits the heat exchanger, reflecting its thermal interaction with the hot fluid.

Symbol: t2

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Exit Temperature of Cold Fluid

Open Variable

Entry Temperature of Cold Fluid

The Entry Temperature of Cold Fluid is the initial temperature of the fluid entering a heat exchanger, influencing the heat transfer efficiency and overall system performance.

Symbol: t1

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Entry Temperature of Cold Fluid

Open Variable

Other formulas in Physical Parameters of Heat Exchanger category

Go Correction factor in heat exchanger

f = \frac{Q}{U \cdot A \cdot ΔT m}

Go Area of heat exchanger

A = \frac{Q}{U \cdot ΔT m \cdot f}

See More

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How to Evaluate Mass flow rate of hot fluid?

Mass flow rate of hot fluid evaluator uses Mass Flow Rate of Hot Fluid = (Effectiveness of Heat Exchanger*Minimum heat capacity/Specific heat of hot fluid)*(1/((Entry Temperature of Hot Fluid-Exit Temperature of Cold Fluid)/(Entry Temperature of Hot Fluid-Entry Temperature of Cold Fluid))) to evaluate the Mass Flow Rate of Hot Fluid, Mass flow rate of hot fluid formula is defined as a measure of the amount of hot fluid passing through a system per unit time, which is essential for analyzing heat transfer efficiency in heat exchangers. Mass Flow Rate of Hot Fluid is denoted by mh symbol.

How to evaluate Mass flow rate of hot fluid using this online evaluator? To use this online evaluator for Mass flow rate of hot fluid, enter Effectiveness of Heat Exchanger (ϵ), Minimum heat capacity (C_min), Specific heat of hot fluid (ch), Entry Temperature of Hot Fluid (T1), Exit Temperature of Cold Fluid (t2) & Entry Temperature of Cold Fluid (t1) and hit the calculate button.

FAQs on Mass flow rate of hot fluid

What is the formula to find Mass flow rate of hot fluid?

The formula of Mass flow rate of hot fluid is expressed as Mass Flow Rate of Hot Fluid = (Effectiveness of Heat Exchanger*Minimum heat capacity/Specific heat of hot fluid)*(1/((Entry Temperature of Hot Fluid-Exit Temperature of Cold Fluid)/(Entry Temperature of Hot Fluid-Entry Temperature of Cold Fluid))). Here is an example- 30.47619 = (8*4/1.5)*(1/((60-25)/(60-10))).

How to calculate Mass flow rate of hot fluid?

With Effectiveness of Heat Exchanger (ϵ), Minimum heat capacity (C_min), Specific heat of hot fluid (ch), Entry Temperature of Hot Fluid (T1), Exit Temperature of Cold Fluid (t2) & Entry Temperature of Cold Fluid (t1) we can find Mass flow rate of hot fluid using the formula - Mass Flow Rate of Hot Fluid = (Effectiveness of Heat Exchanger*Minimum heat capacity/Specific heat of hot fluid)*(1/((Entry Temperature of Hot Fluid-Exit Temperature of Cold Fluid)/(Entry Temperature of Hot Fluid-Entry Temperature of Cold Fluid))).

Can the Mass flow rate of hot fluid be negative?

No, the Mass flow rate of hot fluid, measured in Mass Flow Rate cannot be negative.

Which unit is used to measure Mass flow rate of hot fluid?

Mass flow rate of hot fluid is usually measured using the Kilogram per Second[kg/s] for Mass Flow Rate. Gram per Second[kg/s], Gram per Hour[kg/s], Milligram per Minute[kg/s] are the few other units in which Mass flow rate of hot fluid can be measured.

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