Calculate Amount of Condensate From Cooling Coil

Condensate Formula:

\[ Condensate = \frac{Air\ Flow \times \Delta h}{h_{fg}} \]

Condensate:

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1. What is Condensate Calculation?

The condensate calculation determines the amount of water that condenses from air when it passes through a cooling coil. This occurs when the coil temperature drops below the dew point of the air, causing moisture to condense out of the air stream.

2. How Does the Calculator Work?

The calculator uses the condensate formula:

\[ Condensate = \frac{Air\ Flow \times \Delta h}{h_{fg}} \]

Where:

\( Condensate \) — Mass of condensate (kg/s)
\( Air\ Flow \) — Volumetric air flow rate (m³/s)
\( \Delta h \) — Enthalpy difference across the coil (J/kg)
\( h_{fg} \) — Latent heat of vaporization of water (J/kg)

Explanation: The formula calculates the mass of water that condenses based on the latent heat removal in the cooling coil and the air flow rate.

3. Importance of Condensate Calculation

Details: Accurate condensate calculation is crucial for proper drainage system design, preventing water damage, maintaining indoor air quality, and ensuring efficient HVAC system operation.

4. Using the Calculator

Tips: Enter air flow in m³/s, enthalpy difference in J/kg, and latent heat of vaporization in J/kg. All values must be positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical value for h_fg?
A: The latent heat of vaporization for water is approximately 2,260,000 J/kg at standard conditions, but it varies with temperature.

Q2: Why is condensate removal important?
A: Proper condensate removal prevents microbial growth, water damage to building structures, and maintains system efficiency.

Q3: How does air temperature affect condensate production?
A: Higher air temperatures with high humidity levels typically produce more condensate as there's more moisture to remove from the air.

Q4: What factors influence Δh (enthalpy difference)?
A: Δh depends on the temperature and humidity difference between incoming and outgoing air, and the coil's cooling capacity.

Q5: Can this calculation be used for different refrigerants?
A: The formula is general for water condensate. For other substances, the latent heat value (h_fg) would need to be adjusted accordingly.