Skip to content

Specific Work of Gas Turbine Calculator

This calculator determines the net specific work output of a gas turbine by subtracting the compressor work from the turbine work. It is essential for analyzing turbine efficiency, energy output, and thermodynamic performance in jet engines and power generation systems.

Net Work Output Calculator for Gas Turbines

Input Fields
T₁
K
Air temperature before compressor
T₂
K
Air temperature after compressor
T₃
K
Air temperature entering the turbine
T₄
K
Air temperature leaving the turbine
cₚ
kJ/kg·K
Specific heat at constant pressure
If enabled, the result will update automatically when you change any value.

Gas Turbine Specific Work Formula

Formula
$$w_{\text{net}} = w_{\text{turbine}} – w_{\text{compressor}}$$

Where:

  • $$w_{\text{net}}$$ = net specific work output (J/kg)
  • $$w_{\text{turbine}}$$ = specific work produced by turbine (J/kg)
  • $$w_{\text{compressor}}$$ = specific work consumed by compressor (J/kg)

This formula assumes steady flow and neglects losses from auxiliary components.


Specific Work – Calculation Example

Given:

  • $$w_{\text{turbine}}$$ = 1100 J/kg
  • $$w_{\text{compressor}}$$ = 600 J/kg

Calculation:

  1. $$w_{\text{net}} = 1100 – 600 = 500~\text{J/kg}$$


The specific work of a gas turbine reflects how much useful energy is available per unit mass of working fluid. It is critical in the performance evaluation of aircraft engines, power plants, and thermodynamic cycles like the Brayton cycle. By calculating both turbine output and compressor input, engineers can assess the real efficiency of the system and optimize for power-to-weight or fuel consumption.

Previous
Specific Work

Leave a Reply

Your email address will not be published. Required fields are marked *