Indicated Power For Double-acting Compressor Calculator

Formula Used:

\[ \text{Indicated Power in Compressor} = \frac{\text{Work Done during Polytropic Compression} \times 2 \times \text{Speed in RPM}}{60} \] \[ P_{\text{Indicated}} = \frac{W_{\text{Polytropic}} \times 2 \times N}{60} \]

Indicated Power in Compressor:

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1. What is Indicated Power in Compressor?

Indicated Power in Compressor is the power required by a compressor to compress air or gas to a desired pressure and volume. It represents the actual work done on the gas during the compression process.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ P_{\text{Indicated}} = \frac{W_{\text{Polytropic}} \times 2 \times N}{60} \]

Where:

\( P_{\text{Indicated}} \) — Indicated Power in Compressor (Watt)
\( W_{\text{Polytropic}} \) — Work Done during Polytropic Compression (Joule)
\( N \) — Speed in RPM

Explanation: The formula calculates the power required for a double-acting compressor by accounting for the work done during polytropic compression and the rotational speed of the compressor.

3. Importance of Indicated Power Calculation

Details: Accurate calculation of indicated power is crucial for compressor design, energy efficiency analysis, and proper sizing of compressor systems for industrial applications.

4. Using the Calculator

Tips: Enter Work Done during Polytropic Compression in Joules and Speed in RPM. All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is polytropic compression?
A: Polytropic compression is a thermodynamic process where pressure and volume change according to PV^n = constant, where n is the polytropic index.

Q2: Why multiply by 2 in the formula?
A: The factor of 2 accounts for the double-acting nature of the compressor where compression occurs on both sides of the piston.

Q3: What is the difference between indicated power and brake power?
A: Indicated power is the power developed in the cylinder, while brake power is the actual power available at the compressor shaft after accounting for mechanical losses.

Q4: How does speed affect indicated power?
A: Higher compressor speeds generally result in higher indicated power requirements, as more compression cycles occur per unit time.

Q5: What are typical units for indicated power?
A: Indicated power is typically measured in Watts (W) or kilowatts (kW) in the SI system, or horsepower (hp) in imperial units.