Heat Exchanger Testing
Validate and Confirm Heat Exchanger Performance
Image of Heat Exchange Testing facility The OTS laboratory includes three temperature and humidity-controlled wind tunnels for the purposes of testing air-to-refrigerant heat exchangers. Testing can be provided to confirm performance data and/or to validate heat exchanger modeling assumptions using CoilDesigner® or other software. Testing can be done with hot water, chilled water, glycol or refrigerant. Testing capabilities are summarized in the following table:
Parameter Units Minimum Maximum
Face area   1.5' x 1.5' 3' x 3'
Air flow rate CFM 300 4,000
Air inlet temperature 54 122
Moisture Gal/day n/a 168
Water flow rate GPM n/a 40
Water inlet temperature 50 149
Water test capacity kW n/a 52
Refrigerant test capacity - evaporation kW n/a 26
Refrigerant test capacity - condensation kW n/a 27
Refrigerant flow rate lbm/min n/a 20.5
Condensation temperature 64 149
Evaporation temperature 34 112


OTS uses high accuracy equipment to provide an energy balance within 2% - 5%. Accommodations for other fluids, such as oil, and/or test conditions outside of the range listed above can be made on a case-by-case basis.

Contact us to discuss your heat exchanger testing needs.