Shaft Work in Compressible Flow Machines neglecting Inlet and Exit Velocities Solution

STEP 0: Pre-Calculation Summary
Formula Used
Shaft Work = Enthalpy at Compressor Inlet-Enthalpy at Exit of Compressor
Ws = h1-h2
This formula uses 3 Variables
Variables Used
Shaft Work - (Measured in Joule) - Shaft Work is mechanical energy used to drive a mechanism, such as a pump, compressor, or turbine.
Enthalpy at Compressor Inlet - (Measured in Joule) - Enthalpy at Compressor Inlet is the heat energy of flow at the entry of compressor.
Enthalpy at Exit of Compressor - (Measured in Joule) - Enthalpy at Exit of Compressor is the heat energy of the flow after compression.
STEP 1: Convert Input(s) to Base Unit
Enthalpy at Compressor Inlet: 387.6 Kilojoule --> 387600 Joule (Check conversion here)
Enthalpy at Exit of Compressor: 548.5 Kilojoule --> 548500 Joule (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Ws = h1-h2 --> 387600-548500
Evaluating ... ...
Ws = -160900
STEP 3: Convert Result to Output's Unit
-160900 Joule -->-160.9 Kilojoule (Check conversion here)
FINAL ANSWER
-160.9 Kilojoule <-- Shaft Work
(Calculation completed in 00.004 seconds)

Credits

Created by Chilvera Bhanu Teja
Institute of Aeronautical Engineering (IARE), Hyderabad
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14 Compressor Calculators

Efficiency of compressor in actual gas turbine cycle
Go Isentropic Efficiency of Compressor = (Temperature at Compressor Exit-Temperature at Compressor Inlet)/(Actual Temperature at Compressor Exit-Temperature at Compressor Inlet)
Minimum Temperature Ratio
Go Temperature Ratio = (Pressure Ratio^((Heat Capacity Ratio-1)/Heat Capacity Ratio))/(Isentropic Efficiency of Compressor*Efficiency of Turbine)
Efficiency of Compressor given Enthalpy
Go Isentropic Efficiency of Compressor = (Ideal Enthalpy after Compression-Enthalpy at Compressor Inlet)/(Actual Enthalpy after Compression-Enthalpy at Compressor Inlet)
Work Required to Drive Compressor Including Mechanical Losses
Go Compressor Work = (1/Mechanical Efficiency)*Specific Heat Capacity at Constant Pressure*(Temperature at Compressor Exit-Temperature at Compressor Inlet)
Shaft Work in Compressible Flow Machines
Go Shaft Work = (Enthalpy at Compressor Inlet+Compressor Inlet Velocity^2/2)-(Enthalpy at Exit of Compressor+Compressor Exit Velocity^2/2)
Tip Velocity of Impeller given Hub Diameter
Go Tip Velocity = pi*RPM/60*sqrt((Impeller Tip Diameter^2+Impeller Hub Diameter^2)/2)
Compressor Work in Gas Turbine given Temperature
Go Compressor Work = Specific Heat Capacity at Constant Pressure*(Temperature at Compressor Exit-Temperature at Compressor Inlet)
Tip Velocity of Impeller given Mean Diameter
Go Tip Velocity = pi*(2*Mean Diameter of Impeller^2-Impeller Hub Diameter^2)^0.5*RPM/60
Mean Diameter of Impeller
Go Mean Diameter of Impeller = sqrt((Impeller Tip Diameter^2+Impeller Hub Diameter^2)/2)
Impeller Outlet Diameter
Go Impeller Tip Diameter = (60*Tip Velocity)/(pi*RPM)
Degree of Reaction for Compressor
Go Degree of Reaction = (Enthalpy Increase in Rotor)/(Enthalpy Increase in Stage)
Isentropic Efficiency of Compression Machine
Go Isentropic Efficiency of Compressor = Isentropic Work Input/Actual Work Input
Compressor work
Go Compressor Work = Enthalpy at Exit of Compressor-Enthalpy at Compressor Inlet
Shaft Work in Compressible Flow Machines neglecting Inlet and Exit Velocities
Go Shaft Work = Enthalpy at Compressor Inlet-Enthalpy at Exit of Compressor

Shaft Work in Compressible Flow Machines neglecting Inlet and Exit Velocities Formula

Shaft Work = Enthalpy at Compressor Inlet-Enthalpy at Exit of Compressor
Ws = h1-h2

What is shaft work?

Shaft work is defined as the mechanical energy used to drive a mechanism, such as a pump, compressor, or turbine.

How to Calculate Shaft Work in Compressible Flow Machines neglecting Inlet and Exit Velocities?

Shaft Work in Compressible Flow Machines neglecting Inlet and Exit Velocities calculator uses Shaft Work = Enthalpy at Compressor Inlet-Enthalpy at Exit of Compressor to calculate the Shaft Work, The Shaft work in compressible flow machines neglecting inlet and exit velocities formula is defined as the difference between enthalpy at inlet and enthalpy at exit. Shaft Work is denoted by Ws symbol.

How to calculate Shaft Work in Compressible Flow Machines neglecting Inlet and Exit Velocities using this online calculator? To use this online calculator for Shaft Work in Compressible Flow Machines neglecting Inlet and Exit Velocities, enter Enthalpy at Compressor Inlet (h1) & Enthalpy at Exit of Compressor (h2) and hit the calculate button. Here is how the Shaft Work in Compressible Flow Machines neglecting Inlet and Exit Velocities calculation can be explained with given input values -> -0.1609 = 387600-548500.

FAQ

What is Shaft Work in Compressible Flow Machines neglecting Inlet and Exit Velocities?
The Shaft work in compressible flow machines neglecting inlet and exit velocities formula is defined as the difference between enthalpy at inlet and enthalpy at exit and is represented as Ws = h1-h2 or Shaft Work = Enthalpy at Compressor Inlet-Enthalpy at Exit of Compressor. Enthalpy at Compressor Inlet is the heat energy of flow at the entry of compressor & Enthalpy at Exit of Compressor is the heat energy of the flow after compression.
How to calculate Shaft Work in Compressible Flow Machines neglecting Inlet and Exit Velocities?
The Shaft work in compressible flow machines neglecting inlet and exit velocities formula is defined as the difference between enthalpy at inlet and enthalpy at exit is calculated using Shaft Work = Enthalpy at Compressor Inlet-Enthalpy at Exit of Compressor. To calculate Shaft Work in Compressible Flow Machines neglecting Inlet and Exit Velocities, you need Enthalpy at Compressor Inlet (h1) & Enthalpy at Exit of Compressor (h2). With our tool, you need to enter the respective value for Enthalpy at Compressor Inlet & Enthalpy at Exit of Compressor and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Shaft Work?
In this formula, Shaft Work uses Enthalpy at Compressor Inlet & Enthalpy at Exit of Compressor. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Shaft Work = (Enthalpy at Compressor Inlet+Compressor Inlet Velocity^2/2)-(Enthalpy at Exit of Compressor+Compressor Exit Velocity^2/2)
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