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Mass flow rate of hot fluid Formula

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Mass Flow Rate of Hot Fluid is the mass of the hot fluid which passes per unit of time. 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 - Smaller Value?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.

228.5714 = (8 \cdot \frac{30}{1.5}) \cdot (\frac{1}{\frac{60 - 25}{60 - 10}})

228.5714kg/s = (8 \cdot \frac{30}{1.5J/(kg*K)}) \cdot (\frac{1}{\frac{60K - 25K}{60K - 10K}})

228.5714 = (8 \cdot \frac{30}{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{30}{1.5J/(kg*K)}) \cdot (\frac{1}{\frac{60K - 25K}{60K - 10K}})

Next Step Prepare to Evaluate

∴

mh = (8 \cdot \frac{30}{1.5}) \cdot (\frac{1}{\frac{60 - 25}{60 - 10}})

Next Step Evaluate

∴

mh = 228.571428571429kg/s

LAST Step Rounding Answer

∴

mh = 228.5714kg/s

Mass flow rate of hot fluid Formula Elements

Variables

Mass Flow Rate of Hot Fluid

Mass Flow Rate of Hot Fluid is the mass of the hot fluid which passes per unit of time.

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 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

Open Variable

Smaller Value

Smaller value of mass flowrate of hot fluid * specific heat of hot fluid and mass flowrate of cold fluid * specific heat of cold fluid.

Symbol: C_min

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Smaller Value

Open Variable

Specific heat of hot fluid

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

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

Entry temperature of hot fluid is the temperature of the hot fluid at entry.

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

Exit temperature of cold fluid is the temperature of the cold fluid at exit.

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

Entry temperature of cold fluid is the temperature of the cold fluid at entry.

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*Smaller Value/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, The Mass flow rate of hot fluid formula is defined as the amount of hot fluid flowing per unit time in the heat exchanger. 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), Smaller Value (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*Smaller Value/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- 228.5714 = (8*30/1.5)*(1/((60-25)/(60-10))).

How to calculate Mass flow rate of hot fluid?

With Effectiveness of Heat Exchanger (ϵ), Smaller Value (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*Smaller Value/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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