GEA PHE Systems North America

About Heat Exchangers for Refrigeration Applications

Typical Refrigerants: R-22, Ammonia...

What is a Heat Exchanger?

What are Tons?

What is a BTUH

Example: Raise one gallon of water from 60 degress F to 212 degrees F (152 degree increase)
1gallon x 8.31lb/gal. x 152degrees = 1,263 BTU's.

Typical Refrigeration System (Chiller)

Chillers

Condensers

Subcoolers

Cascade Condenser

Key Items in Refrigeration Systems

1. Water Temperature
2. Flow Rate
3. BTU's
4. Pressure Drop
5. Type Refrigerant (R-22)
6. Evap Temp.

Secondary Items in Refrigeration Systems:

1. Fouling Factor
2. Fluid Properties
3. Refrig. Superheat

How to Calculate BTU/H (for water)

Typical Refrigeration Applications:

- Water Chillers for Comfort Cooling
- MRI/X-Ray machines
- Machine Cooling
- Plastic Injection Mold Cooling
- Food Process
- Glycol Chillers for Low Temperature Processes
- Food Processes
- Environmental Chambers
- Hydraulic Oil Cooling
- Beer Cooling