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Condensate Mass Flow Rate Equation:
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The steam condensate flow rate represents the mass flow rate of condensed steam resulting from heat transfer processes. It is calculated using the fundamental relationship between heat transfer rate and the latent heat of vaporization of the working fluid.
The calculator uses the condensate mass flow rate equation:
Where:
Explanation: This equation calculates the mass flow rate of steam condensate by dividing the total heat transfer rate by the latent heat required for phase change from vapor to liquid.
Details: Accurate condensate flow rate calculation is essential for designing steam systems, sizing condensate return lines, optimizing heat exchanger performance, and ensuring efficient steam trap selection in industrial processes.
Tips: Enter heat transfer rate in watts (W) and latent heat of vaporization in joules per kilogram (J/kg). Both values must be positive numbers greater than zero for accurate calculation.
Q1: What is latent heat of vaporization?
A: Latent heat of vaporization is the amount of heat energy required to change a substance from liquid to vapor phase at constant temperature and pressure.
Q2: Why is condensate flow rate important in steam systems?
A: It helps determine the capacity requirements for condensate return systems, prevents water hammer, and ensures proper drainage from steam equipment.
Q3: How does pressure affect the calculation?
A: Latent heat of vaporization varies with pressure. Higher pressures generally result in lower latent heat values, affecting the condensate flow rate for the same heat transfer.
Q4: What are typical latent heat values for steam?
A: For saturated steam at atmospheric pressure, h_fg is approximately 2257 kJ/kg. This value decreases as pressure increases.
Q5: Can this formula be used for other fluids besides water/steam?
A: Yes, the fundamental principle applies to any condensing vapor, but the specific latent heat value will vary depending on the fluid properties.