SC 110 The Screw Compressor

SC 110 – Gas Compression

SC 110 is a technician-focused course that explains how industrial screw compressors move, compress, and control refrigerant vapor in real refrigeration systems. The course translates compression theory into practical understanding that can be applied in operations, troubleshooting, and energy management.

This course is designed for:

• Industrial refrigeration technicians and mechanics
• Operators responsible for compressor control and efficiency
• Engineers supporting system design or optimization
• Anyone working with screw compressors and economized systems

Participants gain a clear mechanical understanding of gas compression, moving beyond “rules of thumb” to understand why compressors behave the way they do under changing conditions.

Course Sections

• Gas Compression – The Roots Blower
  Introduces basic positive displacement compression principles.

• Gas Compression – Screw Compressor Development
  Explains how modern screw compressors evolved.

• Gas Compression – The Compressor’s Role
  Connects compression to the refrigeration cycle.

• Gas Compression – Compressor Terminology
  Defines key terms like swept volume, Vi, and CR.

• Gas Compression – The FRICK® Family of Compressors
  Explains compressor sizing, frames, and model numbers.

• Gas Compression – Compressor Performance
  Shows how suction and discharge pressures affect capacity and horsepower.

• Gas Compression – Golf Ball Compressor
  Visualizes the compression process step by step.

• Gas Compression – Screw Compressors
  Details twin-screw operation and continuous suction behavior.

• Gas Compression – Unloading Screw Compressors
  Covers slide valve and VFD capacity control methods.

• Gas Compression – Variable Volume Control
  Explains how Vi adjustment prevents energy waste.

• Gas Compression – Economizers
  Demonstrates how economizing improves system efficiency.

• Gas Compression – Economizer Port Pressure
  Teaches how economizer pressure is established and affected.

• Gas Compression – Piping Economizers
  Covers proper economizer piping, valves, and pressure drop considerations.

Outcome:
After completing SC 110, students can explain compressor behavior, identify inefficient operating conditions, and make informed decisions that improve reliability and reduce energy consumption.