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Shaft work (Isentropic) is work done by the shaft in a turbine/ compressor when the turbine expands reversibly and adiabatically. Check FAQs
Wsisentropic=cT1((P2P1)[R]c-1)
Wsisentropic - Shaft Work (Isentropic)?c - Specific Heat Capacity?T1 - Temperature of Surface 1?P2 - Pressure 2?P1 - Pressure 1?[R] - Universal gas constant?

Isentropic Work done rate for Adiabatic Compression Process using Cp Example

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Here is how the Isentropic Work done rate for Adiabatic Compression Process using Cp equation looks like with Values.

Here is how the Isentropic Work done rate for Adiabatic Compression Process using Cp equation looks like with Units.

Here is how the Isentropic Work done rate for Adiabatic Compression Process using Cp equation looks like.

1388.6304Edit=4.184Edit101Edit((5200Edit2500Edit)8.31454.184Edit-1)
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Isentropic Work done rate for Adiabatic Compression Process using Cp Solution

Follow our step by step solution on how to calculate Isentropic Work done rate for Adiabatic Compression Process using Cp?

FIRST Step Consider the formula
Wsisentropic=cT1((P2P1)[R]c-1)
Next Step Substitute values of Variables
Wsisentropic=4.184J/(kg*K)101K((5200Pa2500Pa)[R]4.184J/(kg*K)-1)
Next Step Substitute values of Constants
Wsisentropic=4.184J/(kg*K)101K((5200Pa2500Pa)8.31454.184J/(kg*K)-1)
Next Step Prepare to Evaluate
Wsisentropic=4.184101((52002500)8.31454.184-1)
Next Step Evaluate
Wsisentropic=1388.63040430223J
LAST Step Rounding Answer
Wsisentropic=1388.6304J

Isentropic Work done rate for Adiabatic Compression Process using Cp Formula Elements

Variables
Constants
Shaft Work (Isentropic)
Shaft work (Isentropic) is work done by the shaft in a turbine/ compressor when the turbine expands reversibly and adiabatically.
Symbol: Wsisentropic
Measurement: EnergyUnit: J
Note: Value can be positive or negative.
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: J/(kg*K)
Note: Value can be positive or negative.
Temperature of Surface 1
Temperature of Surface 1 is the temperature of the 1st surface.
Symbol: T1
Measurement: TemperatureUnit: K
Note: Value can be positive or negative.
Pressure 2
Pressure 2 is the pressure at give point 2.
Symbol: P2
Measurement: PressureUnit: Pa
Note: Value can be positive or negative.
Pressure 1
Pressure 1 is the pressure at give point 1.
Symbol: P1
Measurement: PressureUnit: Pa
Note: Value can be positive or negative.
Universal gas constant
Universal gas constant is a fundamental physical constant that appears in the ideal gas law, relating the pressure, volume, and temperature of an ideal gas.
Symbol: [R]
Value: 8.31446261815324

Other Formulas to find Shaft Work (Isentropic)

​Go Isentropic Work Done Rate for Adiabatic Compression Process using Gamma
Wsisentropic=[R](T1γ-1γ)((P2P1)γ-1γ-1)
​Go Isentropic Work Done using Turbine Efficiency and Actual Shaft Work
Wsisentropic=WsηT
​Go Isentropic Work Done using Compressor Efficiency and Actual Shaft Work
Wsisentropic=ηcWs

Other formulas in Application of Thermodynamics to Flow Processes category

​Go Nozzle Efficiency
NE=ΔKEKE
​Go Overall Efficiency given Boiler, Cycle, Turbine, Generator, and Auxiliary Efficiency
ηo=ηBηCηTηGηAux
​Go Enthalpy for Pumps using Volume Expansivity for Pump
ΔH=(CpkΔT)+(VSpecific(1-(βT))ΔP)
​Go Entropy for Pumps using Volume Expansivity for Pump
ΔS=(cln(T2T1))-(βVTΔP)

How to Evaluate Isentropic Work done rate for Adiabatic Compression Process using Cp?

Isentropic Work done rate for Adiabatic Compression Process using Cp evaluator uses Shaft Work (Isentropic) = Specific Heat Capacity*Temperature of Surface 1*((Pressure 2/Pressure 1)^([R]/Specific Heat Capacity)-1) to evaluate the Shaft Work (Isentropic), The Isentropic Work done rate for Adiabatic Compression Process using Cp formula is defined as the function of temperature 1, pressure 1 and 2, and specific heat capacity at constant pressure. Shaft Work (Isentropic) is denoted by Wsisentropic symbol.

How to evaluate Isentropic Work done rate for Adiabatic Compression Process using Cp using this online evaluator? To use this online evaluator for Isentropic Work done rate for Adiabatic Compression Process using Cp, enter Specific Heat Capacity (c), Temperature of Surface 1 (T1), Pressure 2 (P2) & Pressure 1 (P1) and hit the calculate button.

FAQs on Isentropic Work done rate for Adiabatic Compression Process using Cp

What is the formula to find Isentropic Work done rate for Adiabatic Compression Process using Cp?
The formula of Isentropic Work done rate for Adiabatic Compression Process using Cp is expressed as Shaft Work (Isentropic) = Specific Heat Capacity*Temperature of Surface 1*((Pressure 2/Pressure 1)^([R]/Specific Heat Capacity)-1). Here is an example- 1388.63 = 4.184*101*((5200/2500)^([R]/4.184)-1).
How to calculate Isentropic Work done rate for Adiabatic Compression Process using Cp?
With Specific Heat Capacity (c), Temperature of Surface 1 (T1), Pressure 2 (P2) & Pressure 1 (P1) we can find Isentropic Work done rate for Adiabatic Compression Process using Cp using the formula - Shaft Work (Isentropic) = Specific Heat Capacity*Temperature of Surface 1*((Pressure 2/Pressure 1)^([R]/Specific Heat Capacity)-1). This formula also uses Universal gas constant .
What are the other ways to Calculate Shaft Work (Isentropic)?
Here are the different ways to Calculate Shaft Work (Isentropic)-
  • Shaft Work (Isentropic)=[R]*(Temperature of Surface 1/((Heat Capacity Ratio-1)/Heat Capacity Ratio))*((Pressure 2/Pressure 1)^((Heat Capacity Ratio-1)/Heat Capacity Ratio)-1)OpenImg
  • Shaft Work (Isentropic)=Actual Shaft Work/Turbine EfficiencyOpenImg
  • Shaft Work (Isentropic)=Compressor Efficiency*Actual Shaft WorkOpenImg
Can the Isentropic Work done rate for Adiabatic Compression Process using Cp be negative?
Yes, the Isentropic Work done rate for Adiabatic Compression Process using Cp, measured in Energy can be negative.
Which unit is used to measure Isentropic Work done rate for Adiabatic Compression Process using Cp?
Isentropic Work done rate for Adiabatic Compression Process using Cp is usually measured using the Joule[J] for Energy. Kilojoule[J], Gigajoule[J], Megajoule[J] are the few other units in which Isentropic Work done rate for Adiabatic Compression Process using Cp can be measured.
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