1. What is Steam Condensate Flow Rate?

The steam condensate flow rate represents the mass flow rate of condensate produced when steam transfers its latent heat during condensation. It is a critical parameter in steam system design and heat exchanger calculations.

2. How Does the Calculator Work?

The calculator uses the condensate flow rate equation:

Where:

• \( m_{condensate} \) — Condensate flow rate (kg/s)
• \( Q \) — Heat duty (W)
• \( h_{fg} \) — Latent heat of vaporization (J/kg)

Explanation: The equation calculates the mass flow rate of condensate by dividing the total heat transfer rate by the latent heat of vaporization, representing the energy required to condense steam per unit mass.

3. Importance of Condensate Flow Calculation

Details: Accurate condensate flow rate calculation is essential for proper sizing of condensate return systems, steam traps, pumps, and ensuring efficient steam system operation and energy conservation.

4. Using the Calculator

Tips: Enter heat duty in watts (W) and latent heat in joules per kilogram (J/kg). Both values must be positive numbers. Ensure consistent units for accurate results.

5. Frequently Asked Questions (FAQ)

Q1: What is typical latent heat value for steam?
A: For saturated steam at atmospheric pressure, latent heat is approximately 2257 kJ/kg, but it varies with pressure and temperature.

Q2: How is heat duty determined in practice?
A: Heat duty can be calculated from steam flow rate and enthalpy difference, or from process fluid properties and temperature change.

Q3: Why is condensate flow rate important?
A: It helps size condensate return lines, steam traps, and pumps, and ensures proper system drainage and energy recovery.

Q4: Can this calculator be used for different fluids?
A: While the principle is similar, specific latent heat values vary between fluids. This calculator is optimized for steam systems.

Q5: What factors affect condensate flow rate accuracy?
A: Steam quality, pressure variations, heat losses, and the accuracy of input parameters (Q and h_fg) affect the calculation precision.