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Wet Cooling Tower — DWSIM Unit Operation

Wet Cooling Tower is an external unit operation for DWSIM that simulates counterflow induced-draft wet cooling towers using rigorous heat and mass transfer models (Merkel and Poppe methods).

Key Features

  • Rigorous Theory

    Two industry-standard calculation methods: Merkel (simplified) and Poppe (rigorous with Lewis factor correction). Full psychrometric modeling.

    Theory

  • Design & Rating Modes

    Design mode: find the required KaV/L for a target outlet temperature. Rating mode: predict outlet temperature for a known tower.

    User Guide

  • Validated Results

    Validated against Baker & Shryock (1961) and Stoecker & Jones (1982) with average errors below 3.5% on Merkel number predictions.

    Validation

Calculation Workflow

Calculation workflow diagram

Capabilities

Feature Description
Calculation Methods Merkel (Simpson integration) and Poppe (RK4 integration)
Calculation Modes Design (find KaV/L) and Rating (find Tw,out)
Tower Type Counterflow (crossflow planned)
Air Input Wet-bulb temperature or relative humidity
Water Balance Evaporation, drift loss, blowdown, and makeup water
Fan Power Based on air pressure drop and fan efficiency
Fill Correlation KaV/L = C1 × (L/G)^C2
Automation API Full headless control via DWSIM Automation
Units Automatic conversion to/from DWSIM unit system

About AI4Tech

AI4Tech — Artificial Intelligence for Technology
AI is a culture, our culture!
This unit operation was developed by Prof. Dr. Nicolas Spogis — Process Engineering & AI Specialist, founder of AI4Tech.