Indicated Power Of 4 Stroke Engine Calculator

Formula Used:

\[ \text{Indicated Power of 4 Stroke} = \frac{\text{IMEP} \times A \times L \times (N/2) \times N_c}{60} \]

Indicated Mean Effective Pressure (IMEP):

Piston Area (A):

m²

Stroke of Piston (L):

RPM (N):

rpm

Number of Cylinders (Nc):

Indicated Power of 4 Stroke:

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Indicated Power of 4 Stroke Engine?

Indicated Power of 4 Stroke Engine is a measure of the power output of a 4 stroke diesel engine based on the pressure exerted on the piston during the combustion process. It represents the actual power developed inside the engine cylinders.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \text{Indicated Power of 4 Stroke} = \frac{\text{IMEP} \times A \times L \times (N/2) \times N_c}{60} \]

Where:

\( \text{IMEP} \) — Indicated Mean Effective Pressure (Pa)
\( A \) — Piston Area (m²)
\( L \) — Stroke of Piston (m)
\( N \) — RPM (Rotation per Minute)
\( N_c \) — Number of Cylinders

Explanation: The equation calculates the power developed in the engine cylinders based on mean effective pressure, piston dimensions, engine speed, and number of cylinders.

3. Importance of Indicated Power Calculation

Details: Accurate indicated power calculation is crucial for engine performance analysis, efficiency calculations, and comparing different engine designs and configurations.

4. Using the Calculator

Tips: Enter all values in the specified units. IMEP in Pascals, piston area in square meters, stroke length in meters, RPM in rotations per minute, and number of cylinders as a whole number.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between indicated power and brake power?
A: Indicated power is the total power developed in the cylinders, while brake power is the power available at the engine output shaft after accounting for mechanical losses.

Q2: Why divide RPM by 2 in the formula?
A: In a 4-stroke engine, each cylinder produces power once every two revolutions, so the effective power strokes per minute are half the RPM.

Q3: What are typical IMEP values for diesel engines?
A: IMEP values typically range from 6-25 bar (600,000-2,500,000 Pa) depending on engine type, load, and design.

Q4: How does piston area affect indicated power?
A: Larger piston area allows more force to be generated from the same pressure, resulting in higher power output.

Q5: Can this calculator be used for 2-stroke engines?
A: No, this formula is specifically for 4-stroke engines. 2-stroke engines have a different power calculation formula.