Heat Transfer Formula:
From: | To: |
Definition: This calculator estimates the heat transfer rate when steam condenses to water in a heat exchanger.
Purpose: It helps engineers and technicians determine the thermal energy transferred during phase change from steam to water.
The calculator uses the formula:
Where:
Explanation: The steam mass flow rate is multiplied by the latent heat of vaporization to calculate the thermal energy released during condensation.
Details: Accurate heat transfer calculations ensure proper heat exchanger sizing, energy efficiency, and system performance.
Tips: Enter the steam mass flow rate in kg/s and latent heat of vaporization (default 2,257,000 J/kg for water at 1 atm). All values must be > 0.
Q1: What is latent heat of vaporization?
A: The energy required to change 1 kg of liquid to vapor at constant temperature and pressure.
Q2: How does pressure affect the calculation?
A: Higher pressures reduce the latent heat value. Use appropriate λ values for your operating pressure.
Q3: What's a typical steam flow rate?
A: Industrial systems typically range from 0.1 to 50 kg/s, depending on application.
Q4: Does this account for subcooling?
A: No, this calculates only the latent heat portion. Add sensible heat calculations for complete energy transfer.
Q5: How accurate is this calculation?
A: It provides theoretical maximum. Real systems may transfer 5-15% less due to inefficiencies.