Informações do curso
This course explains how evaporators perform useful refrigeration work by removing heat from air and fluid loads through sensible and latent heat transfer. ENG 140 focuses on air unit evaporators and fluid chillers, examining how design features, airflow, surface area, and operating conditions influence capacity, efficiency, moisture control, and reliability. The course also addresses evaporator icing and defrost, with emphasis on safe and effective hot gas defrost operation.
Who it’s for:
Industrial refrigeration technicians, operators, and engineers responsible for evaporator operation, maintenance, or system performance.
Why it matters:
Evaporators are where refrigeration systems deliver cooling. Poor evaporator design, airflow management, or defrost sequencing can reduce capacity, increase energy consumption, and create serious safety risks.
What’s covered:
Evaporator heat transfer fundamentals, air unit construction and materials, fin spacing and fan speed considerations, evaporator control valves, and hot gas defrost cycles and piping arrangements.
Where it fits:
ENG 140 is a core course within the ENG/YPS curriculum and supports advanced training in controls, defrost optimization, startup, and troubleshooting.
Sections include:
- Evaporators
- Air Unit Evaporator Control Valves
- The Defrost Cycle
- Hot Gas Defrost in Detail