Kettle (Shell & Bundle) Reboiler Sizing

Based on standard reboiler engineering calculation sheets.

Input

Boiling temperature °C

Latent heat r_b kJ/kg

Liquid density kg/m³

Vapor density kg/m³

Surface tension N/m

Critical pressure bar abs

Heat duty Q W

Assumed coefficient K W/(m²·K)

Hot condensing temperature °C

Mean temperature difference ΔTm (= Ts − tb) if blank

Tube outer diameter d₀ mm

Wall thickness δ mm

Tube length L m

Number of tubes NT –

Tube pitch t mm

Tube layout

Disengagement K factor m/s

Liquid mean residence time min

Method: kettle / pool-boiling rating with vapour disengagement and holdup sizing. Verify with rigor simulation before design.