Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy Calculator

✖Compressor Efficiency shows how efficient the compressor is in the process.ⓘ Compressor Efficiency [η_c]			+10% -10%
✖Change in enthalpy is the thermodynamic quantity equivalent to the total difference between the heat content of a system.ⓘ Change in Enthalpy [ΔH]			+10% -10%

✖Change in Enthalpy (Isentropic) is the thermodynamic quantity equivalent to the total difference between the heat content of a system under reversible and adiabatic conditions.ⓘ Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy [ΔH_S]

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Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy

Formula

ΔH S = η c \cdot ΔH

Example

106.4 J/kg = 0.56 \cdot 190 J/kg

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Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy Solution

STEP 0: Pre-Calculation Summary

Formula Used

Change in Enthalpy (Isentropic) = Compressor Efficiency*Change in Enthalpy
ΔH_S = η_c*ΔH
This formula uses 3 Variables

Variables Used

Change in Enthalpy (Isentropic) - (Measured in Joule per Kilogram) - Change in Enthalpy (Isentropic) is the thermodynamic quantity equivalent to the total difference between the heat content of a system under reversible and adiabatic conditions.
Compressor Efficiency - Compressor Efficiency shows how efficient the compressor is in the process.
Change in Enthalpy - (Measured in Joule per Kilogram) - Change in enthalpy is the thermodynamic quantity equivalent to the total difference between the heat content of a system.

STEP 1: Convert Input(s) to Base Unit

Compressor Efficiency: 0.56 --> No Conversion Required
Change in Enthalpy: 190 Joule per Kilogram --> 190 Joule per Kilogram No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

ΔH_S = η_c*ΔH --> 0.56*190

Evaluating ... ...

ΔH_S = 106.4

STEP 3: Convert Result to Output's Unit

106.4 Joule per Kilogram --> No Conversion Required

FINAL ANSWER

106.4 Joule per Kilogram <-- Change in Enthalpy (Isentropic)

(Calculation completed in 00.004 seconds)

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National Institute Of Technology (NIT), Surathkal

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< Application of Thermodynamics to Flow Processes Calculators

Isentropic Work Done Rate for Adiabatic Compression Process using Gamma

Go 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)

Isentropic Work done rate for Adiabatic Compression Process using Cp

Go Shaft Work (Isentropic) = Specific Heat Capacity*Temperature of Surface 1*((Pressure 2/Pressure 1)^([R]/Specific Heat Capacity)-1)

Overall Efficiency given Boiler, Cycle, Turbine, Generator, and Auxiliary Efficiency

Go Overall Efficiency = Boiler Efficiency*Cycle Efficiency*Turbine Efficiency*Generator Efficiency*Auxiliary Efficiency

Nozzle Efficiency

Go Nozzle Efficiency = Change in Kinetic Energy/Kinetic Energy

Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy Formula

Change in Enthalpy (Isentropic) = Compressor Efficiency*Change in Enthalpy
ΔH_S = η_c*ΔH

How does a compressor work?

The compression of gases may be accomplished in equipment with rotating blades (like a turbine operating in reverse) or in cylinders with reciprocating pistons. Rotary equipment is used for high-volume flow where the discharge pressure is not too high. For high pressures, reciprocating compressors are often required. The energy equations are independent of the type of equipment; indeed, they are the same as for turbines or expanders because here, too, potential and kinetic-energy changes are presumed negligible.

How to Calculate Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy?

Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy calculator uses Change in Enthalpy (Isentropic) = Compressor Efficiency*Change in Enthalpy to calculate the Change in Enthalpy (Isentropic), The Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy formula is defined as the product of the actual change in enthalpy done by the compressor and the compressor efficiency. Change in Enthalpy (Isentropic) is denoted by ΔH_S symbol.

How to calculate Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy using this online calculator? To use this online calculator for Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy, enter Compressor Efficiency (η_c) & Change in Enthalpy (ΔH) and hit the calculate button. Here is how the Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy calculation can be explained with given input values -> 106.4 = 0.56*190.

FAQ

What is Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy?

The Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy formula is defined as the product of the actual change in enthalpy done by the compressor and the compressor efficiency and is represented as ΔH_S = η_c*ΔH or Change in Enthalpy (Isentropic) = Compressor Efficiency*Change in Enthalpy. Compressor Efficiency shows how efficient the compressor is in the process & Change in enthalpy is the thermodynamic quantity equivalent to the total difference between the heat content of a system.

How to calculate Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy?

The Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy formula is defined as the product of the actual change in enthalpy done by the compressor and the compressor efficiency is calculated using Change in Enthalpy (Isentropic) = Compressor Efficiency*Change in Enthalpy. To calculate Isentropic Change in Enthalpy using Compressor Efficiency and Actual Change in Enthalpy, you need Compressor Efficiency (η_c) & Change in Enthalpy (ΔH). With our tool, you need to enter the respective value for Compressor Efficiency & Change in Enthalpy 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 Change in Enthalpy (Isentropic)?

In this formula, Change in Enthalpy (Isentropic) uses Compressor Efficiency & Change in Enthalpy. We can use 1 other way(s) to calculate the same, which is/are as follows -

Change in Enthalpy (Isentropic) = Change in Enthalpy/Turbine Efficiency

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