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Heat Transfer Calculator

GPSA / API Correlations

Process Parameters

Calculation Type

Fluid Type

Mass Flow Rate

lb/hr

Temperature Conditions

Initial Temperature

°F

Final Temperature

°F

Operating Pressure

psia

Design Factors

Include Heat Loss Factor

📚 Learn the Theory

Understand conduction/convection/radiation, LMTD, and heat exchanger design

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Engineering Notes

Calculation Methods:

Sensible: Q = ṁ × Cp × ΔT
Latent: Q = ṁ × λ (Watson correlation)
Combined: Q₁ + Q₂ + Q₃

Design Guidelines:

Add 10-15% margin for exchanger fouling
Heat loss factor: 2-5% typical for insulated equipment
For fired heaters, add 15-20% for radiant/convection losses

References:

GPSA, Sec 23-24
API Technical Data Book - Petroleum Refining
Perry's Chemical Engineers' Handbook