Indicated Power Of Two Stroke Engine Calculator

Indicated Power Formula:

\[ IP = k \times MEP \times L \times A \times N \]

Number of Cylinders (k):

Mean Effective Pressure (MEP):

Stroke Length (L):

Area of Cross Section (A):

m²

Engine Speed (N):

rad/s

Indicated Power (IP):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Indicated Power?

Indicated Power is the total power produced due to combustion of fuel within the IC engine's cylinder in one complete cycle neglecting any losses. It represents the actual power developed inside the engine cylinders.

2. How Does the Calculator Work?

The calculator uses the Indicated Power formula:

\[ IP = k \times MEP \times L \times A \times N \]

Where:

\( k \) — Number of Cylinders
\( MEP \) — Mean Effective Pressure (Pa)
\( L \) — Stroke Length (m)
\( A \) — Area of Cross Section (m²)
\( N \) — Engine Speed (rad/s)

Explanation: The formula calculates the power generated inside the engine cylinders by multiplying the number of cylinders, mean effective pressure, stroke length, cross-sectional area, and engine speed.

3. Importance of Indicated Power Calculation

Details: Calculating indicated power is crucial for engine performance analysis, efficiency calculations, and comparing different engine designs. It helps engineers understand the actual power developed inside the engine before accounting for mechanical losses.

4. Using the Calculator

Tips: Enter the number of cylinders, mean effective pressure in Pascals, stroke length in meters, cross-sectional area in square meters, and engine speed in radians per second. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

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

Q2: How is mean effective pressure measured?
A: Mean effective pressure is typically calculated from indicator diagrams or pressure-volume curves obtained from engine testing.

Q3: Why is engine speed measured in rad/s instead of RPM?
A: The formula requires angular velocity in rad/s for proper dimensional consistency in the power calculation.

Q4: What factors affect indicated power?
A: Indicated power is affected by fuel quality, air-fuel ratio, compression ratio, engine design, and operating conditions.

Q5: How accurate is this calculation?
A: The calculation provides a theoretical value. Actual indicated power may vary due to factors like heat losses, incomplete combustion, and measurement inaccuracies.