Enter the pre-intercooler temperature (C), the post-intercooler temperature (C), and the ambient temperature (C) into the calculator to determine the Intercooler Efficiency.

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## Intercooler Efficiency Formula

The following formula is used to calculate the Intercooler Efficiency.

**Eint = (Tpre – Tpost) / ( Tpre – Tamb) *100**

- Where Eint is the Intercooler Efficiency (%)
- Tpre is the pre-intercooler temperature (C)
- Tpost is the post-intercooler temperature (C)
- Tamb is the ambient temperature (C)

## How to Calculate Intercooler Efficiency?

The following example problems outline how to calculate the Intercooler Efficiency.

**Example Problem #1**

- First, determine the pre-intercooler temperature (C). In this example, the pre-intercooler temperature (C) is given as 25 .
- Next, determine the post-intercooler temperature (C). For this problem, the post-intercooler temperature (C) is given as 22.
- Next, determine the ambient temperature (C). In this case, the ambient temperature (C) is found to be 20.
- Finally, calculate the Intercooler Efficiency using the formula above:

Eint = (Tpre – Tpost) / ( Tpre – Tamb) *100

Inserting the values from above and solving yields:

Eint = (25- 22) / ( 25 – 20) *100 = 60 (%)

**Example Problem #2**

Using the same method as above, determine the variables required by the equation. For this example problem, these are provided as:

pre-intercooler temperature (C) = 30

post-intercooler temperature (C) = 27

ambient temperature (C) = 25

Enter these given values yields:

Eint = (30-27) / ( 30 – 25) *100 = 60** **(%)