Calculators
Deaerator Sizing
Deaerator heating-steam demand, storage volume, and vessel size for a horizontal spray-tray deaerator per HEI and ASME PTC 12.3. Computes saturation temperature from pressure using a 0–30 psig empirical fit.
Standards: HEI Standards for Deaerators (9th ed.), ASME PTC 12.3. Heat balance: Q = mcond(Tsat−Tcond) + mmu(Tsat−Tmu); heating-steam rate ḴDA = Q / hfg. Empirical Tsat: 212 + 3.20·P − 0.03·P² valid to ~30 psig (±2°F vs steam tables). For higher pressures use steam tables directly.
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