ENG 240 Hydronics for Industrial Refrigeration

This course explains hydronic systems and the use of secondary refrigerants in industrial refrigeration facilities.

It is intended for industrial refrigeration technicians, engineers, and designers who work with glycol loops, brine systems, or underfloor heating applications.

Understanding hydronics matters because fluid selection, system layout, and pumping strategy directly affect efficiency, operating cost, freeze protection, and long‑term reliability. Poor choices in brine concentration or component placement can lead to excessive energy use, air problems, or equipment damage.

The course covers secondary refrigerants, brine selection, freeze protection, specific heat, viscosity, hydronic system components, pumping away principles, flow balancing strategies, and underfloor heating applications.

ENG 240 fits as a core systems course that prepares learners for advanced refrigeration design, energy optimization, and integrated heat recovery topics.

Sections include:

• Secondary Refrigerants
• Selecting Brines
• Freeze Protection
• Specific Heat
• Viscosity
• System Components
• Pumping Away
• Balancing Flow
• Underfloor Heating
• Glycol Floor Warming Systems