1. What is Pressure Loss at Discharge?

Pressure Loss at Discharge due to friction is the decrease in the value of the pressure due to the influence of friction at the exit point of a system.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \Delta P_{dis} \) — Pressure Loss at Discharge (Pa)
• \( V \) — Velocity of Air (m/s)

Explanation: The formula calculates pressure loss at discharge based on the square of the air velocity, with a coefficient of 0.6 accounting for friction losses.

3. Importance of Pressure Loss Calculation

Details: Accurate pressure loss calculation is crucial for designing ventilation systems, optimizing airflow, and ensuring proper system performance in various engineering applications.

4. Using the Calculator

Tips: Enter air velocity in meters per second (m/s). The value must be valid (velocity > 0).

5. Frequently Asked Questions (FAQ)

Q1: What factors affect pressure loss at discharge?
A: The primary factor is air velocity, but other factors include duct geometry, surface roughness, and fluid properties.

Q2: Why is the velocity squared in the formula?
A: Pressure loss is proportional to the square of velocity due to the kinetic energy relationship in fluid dynamics.

Q3: What are typical velocity values in ventilation systems?
A: Typical velocities range from 2-10 m/s for low-pressure systems and up to 25 m/s for high-pressure systems.

Q4: Are there limitations to this formula?
A: This simplified formula provides an estimate and may not account for all system-specific factors in complex installations.

Q5: How does pressure loss affect system performance?
A: Higher pressure losses require more energy to maintain desired airflow, increasing operating costs and reducing system efficiency.