Glycol Correction Calculator

Formula

The formula to calculate Corrected Heat Transfer (Qc) is:

\[ Q_c = FR \times \Delta T \times SH \times CF \times 500 \]

Where:

\( Q_c \) is the corrected heat transfer (BTU/hr)
\( FR \) is the flow rate (gallons per minute, gpm)
\( \Delta T \) is the temperature difference (degrees Fahrenheit, °F)
\( SH \) is the specific heat of the glycol solution (BTU/lb°F)
\( CF \) is the correction factor (dimensionless)

What is Glycol Correction?

Glycol correction is the process of adjusting the heat transfer calculations in a system that uses glycol as a heat transfer fluid. Glycol solutions have different thermal properties than water, such as specific heat and viscosity, which affect the system’s heat transfer efficiency. The correction factor accounts for these differences and is used to ensure accurate calculations for system design and performance evaluation.

Example Calculation

Let's assume the following values:

Flow Rate (FR) = 10 gpm
Temperature Difference (ΔT) = 20 °F
Specific Heat of Glycol Solution (SH) = 0.9 BTU/lb°F
Correction Factor (CF) = 1.1

Using the formula to calculate Corrected Heat Transfer:

\[ Q_c = 10 \times 20 \times 0.9 \times 1.1 \times 500 = 99,000 \text{ BTU/hr} \]

The Corrected Heat Transfer (Qc) is 99,000 BTU/hr.