Heat Exchanger Area Sizing
Calculates the required heat transfer area for a counter-current heat exchanger using heat duty, logarithmic mean temperature difference (LMTD), and fouling resistance.
📖 Need the theory? Read the methodology, assumptions, and equations in the full reference guide.
1. Define Input Parameters
2. Engineering Output
Heat Duty (Q)
- W
- W
Logarithmic Mean Temperature Difference (LMTD)
- °C
- °C
Design Overall Heat Transfer Coefficient (u_design)
- W/(m²·K)
- W/(m²·K)
Required Heat Transfer Area (A)
- m²
- m²
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Heat exchanger area sizing is essential for the thermal design of process equipment such as pasteurizers, evaporators, and heaters. The procedure applies energy balance principles to determine thermal duty and utilizes the logarithmic mean temperature difference alongside fouling allowances to evaluate required surface area. This ensures operational longevity and prevents thermal underperformance between cleaning intervals.
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