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

✖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%
✖Turbine Efficiency is the ratio of actual work output of the turbine to the net input energy supplied in the form of fuel.ⓘ Turbine Efficiency [η_T]			+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 Turbine Efficiency and Actual Change in Enthalpy [ΔH_S]

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

STEP 0: Pre-Calculation Summary

Formula Used

Change in Enthalpy (Isentropic) = Change in Enthalpy/Turbine Efficiency
ΔH_S = ΔH/η_T
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.
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.
Turbine Efficiency - Turbine Efficiency is the ratio of actual work output of the turbine to the net input energy supplied in the form of fuel.

STEP 1: Convert Input(s) to Base Unit

Change in Enthalpy: 190 Joule per Kilogram --> 190 Joule per Kilogram No Conversion Required
Turbine Efficiency: 0.75 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

ΔH_S = ΔH/η_T --> 190/0.75

Evaluating ... ...

ΔH_S = 253.333333333333

STEP 3: Convert Result to Output's Unit

253.333333333333 Joule per Kilogram --> No Conversion Required

FINAL ANSWER

253.333333333333 ≈ 253.3333 Joule per Kilogram <-- Change in Enthalpy (Isentropic)

(Calculation completed in 00.008 seconds)

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National Institute Of Technology (NIT), Surathkal

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

LaTeX Go

Change in Enthalpy (Isentropic) = Change in Enthalpy/Turbine Efficiency
ΔH_S = ΔH/η_T

How does turbine (expanders) work?

The expansion of a gas in a nozzle to produce a high-velocity stream is a process that converts internal energy into kinetic energy, which in turn is converted into shaft work when the stream impinges on blades attached to a rotating shaft. Thus a turbine (or expander) consists of alternate sets of nozzles and rotating blades through which vapor or gas flows in a steady-state expansion process. The overall result is the conversion of the internal energy of a high-pressure stream into shaft work. When steam provides the motive force as in most power plants, the device is called a turbine; when it is a high-pressure gas, such as ammonia or ethylene in a chemical plant, the device is usually called an expander.

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

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

How to calculate Isentropic Change in Enthalpy using Turbine Efficiency and Actual Change in Enthalpy using this online calculator? To use this online calculator for Isentropic Change in Enthalpy using Turbine Efficiency and Actual Change in Enthalpy, enter Change in Enthalpy (ΔH) & Turbine Efficiency (η_T) and hit the calculate button. Here is how the Isentropic Change in Enthalpy using Turbine Efficiency and Actual Change in Enthalpy calculation can be explained with given input values -> 253.3333 = 190/0.75.

FAQ

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

The Isentropic Change in Enthalpy using Turbine Efficiency and Actual Change in Enthalpy formula is defined as the ratio of actual change in enthalpy done by the turbine to the turbine efficiency and is represented as ΔH_S = ΔH/η_T or Change in Enthalpy (Isentropic) = Change in Enthalpy/Turbine Efficiency. Change in enthalpy is the thermodynamic quantity equivalent to the total difference between the heat content of a system & Turbine Efficiency is the ratio of actual work output of the turbine to the net input energy supplied in the form of fuel.

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

The Isentropic Change in Enthalpy using Turbine Efficiency and Actual Change in Enthalpy formula is defined as the ratio of actual change in enthalpy done by the turbine to the turbine efficiency is calculated using Change in Enthalpy (Isentropic) = Change in Enthalpy/Turbine Efficiency. To calculate Isentropic Change in Enthalpy using Turbine Efficiency and Actual Change in Enthalpy, you need Change in Enthalpy (ΔH) & Turbine Efficiency (η_T). With our tool, you need to enter the respective value for Change in Enthalpy & Turbine Efficiency 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 Change in Enthalpy & Turbine Efficiency. We can use 1 other way(s) to calculate the same, which is/are as follows -

Change in Enthalpy (Isentropic) = Compressor Efficiency*Change in Enthalpy

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