DWSIM Heat Exchanger Simulation | Debutanizer Condenser with Geometry & Rating

🔧 Heat Exchanger Simulation in DWSIM – Step by Step

In this video, we simulate a shell-and-tube heat exchanger (Debutanizer condenser) using DWSIM, an open-source process simulation software widely used in chemical engineering.

📌 Problem Description:
A hot hydrocarbon vapor stream is condensed using cold cooling water in a shell-and-tube condenser. The original vapor flow rate is 15,000 kg/h, which is increased by 15% to 17,250 kg/h.
The objective is to determine whether complete condensation (zero vapor at outlet) is still achieved at the increased flow rate.

⚙️ Simulation Specifications:

Hot fluid (shell side): Hydrocarbon vapor
Temperature: 75 °C | Pressure: 8 bar | Flow rate: 17,250 kg/h

Cold fluid (tube side): Cooling water
Temperature: 30 °C | Pressure: 4 bar | Flow rate: 85,000 kg/h

Shell-side geometry:
Shell ID: 600 mm (horizontal), Baffle spacing: 450 mm, Baffle cut: 25%

Tube-side geometry:
450 tubes, OD/ID: 19.05 / 15.75 mm, Pitch: 25 mm (triangular), Passes: 2

Fouling factor: 0.0002 m²·K/W

Thermodynamic model: Peng–Robinson Equation of State

📊 What is evaluated in this video:

Outlet vapor fraction of hydrocarbon stream

Outlet temperature after condensation

Effect of increased vapor flow rate on condenser performance

🧑‍🎓 Who should watch this video:

Chemical Engineering students

Beginners learning DWSIM

Heat transfer and process simulation learners

🔗 Download DWSIM (Official Website):
👉 https://dwsim.org

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