CO₂ 200 – Transcritical Systems

Learn how CO₂ refrigeration systems operate above the critical point.

Focuses on the design and operation of transcritical CO₂ refrigeration systems.

Overview

Because CO₂ has a relatively low critical temperature, many refrigeration systems operate in the transcritical region where traditional condensing does not occur.

This course explains transcritical system operation, including gas coolers, pressure control, and system efficiency considerations. Students learn how component selection and control strategies affect performance in transcritical applications.

Ideal For

• Engineers designing or evaluating CO₂ refrigeration systems
• Technicians commissioning or operating transcritical systems
• Professionals moving beyond CO₂ fundamentals

Core Learning Objectives

• Explain transcritical refrigeration operation
• Understand gas cooler function and pressure control
• Evaluate performance impacts of transcritical conditions

Topics

• Subcritical vs. Transcritical Operation
• Gas Coolers
• High‑Side Pressure Control
• System Efficiency Considerations
• Operating Challenges in Transcritical Systems