Enter the theoretical pounds of steam consumed (lbs) and the actual steam consumed (lbs) into the calculator to determine the Turbine Efficiency. 

Turbine Efficiency Formula

The following formula is used to calculate the Turbine Efficiency. 

Eturbine = WSCt / WSCa *100

  • Where Eturbine is the Turbine Efficiency (%)
  • WSCt is the theoretical pounds of steam consumed (lbs) 
  • WSCa is the actual steam consumed (lbs) 

How to Calculate Turbine Efficiency?

The following two example problems outline how to calculate the Turbine Efficiency.

Example Problem #1:

  1. First, determine the theoretical pounds of steam consumed (lbs). In this example, the theoretical pounds of steam consumed (lbs) is given as 5000.
  2. Next, determine the actual steam consumed (lbs). For this problem, the actual steam consumed (lbs) is given as 13000.
  3. Finally, calculate the Turbine Efficiency using the equation above: 

Eturbine = WSCt / WSCa *100

Inserting the values from above and solving the equation: 

Eturbine = 5000 / 13000*100 = 38.4 (%)


Example Problem #2: 

Using the same process as above, first define the variables required by the formula. In this case, these values are:

theoretical pounds of steam consumed (lbs) = 6000

actual steam consumed (lbs) = 12000

Entering these values yields:

Eturbine = 6000/12000 *100 = 50 (%)