1. What is a Steam Heat Exchanger Calculator?

Definition: This calculator determines the heat transfer rate in a steam system based on mass flow rate and latent heat of vaporization.

Purpose: It helps engineers and technicians calculate the thermal energy transfer in steam-based heat exchange systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Heat transfer rate (Watts)
• \( \dot{m} \) — Mass flow rate (kg/s)
• \( \lambda \) — Latent heat of vaporization (J/kg)

Explanation: The mass flow rate of steam is multiplied by the energy required to vaporize the fluid to determine the total heat transfer.

3. Importance of Heat Transfer Calculation

Details: Accurate heat transfer calculations are essential for proper heat exchanger sizing, energy efficiency, and system performance.

4. Using the Calculator

Tips: Enter the 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.

5. Frequently Asked Questions (FAQ)

Q1: What is latent heat of vaporization?
A: The energy required to change a substance from liquid to vapor at constant temperature and pressure.

Q2: What's a typical latent heat value for water?
A: At 1 atmosphere, water's latent heat is approximately 2,257,000 J/kg (2257 kJ/kg).

Q3: How do I find the mass flow rate?
A: Measure steam flow directly or calculate from volumetric flow and steam density.

Q4: Does this account for superheated steam?
A: No, this calculation is for saturated steam. For superheated steam, additional calculations are needed.

Q5: What about condensate return?
A: This calculator gives total heat transfer. Actual usable heat depends on condensate conditions.