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Air-Cooled Heat Exchangers

Air-cooled heat exchangers are widely used in petrochemicals, chemicals, power, metallurgy, and food industries. The equipment uses fans to force ambient air across finned tubes, exchanging heat with high-temperature process fluids inside. Two main types: ACC (Air-Cooled Condensers) for power plants, and AFC (Air Finned Coolers) for process applications.

Air-cooled heat exchanger — finned tube bundle with fans

Technical characteristics

ACC Temperature Range
-42°C to 150°C
ACC Pressure
Negative pressure (steam turbine back pressure)
AFC Temperature Range
-10°C to 250°C
AFC Pressure Range
0.1 to 35 MPa
Draft Configuration
Forced and induced draft designs

Main materials

ACC Tubes
Steel-aluminum composite base tube + aluminum strip fins, brazed for excellent anti-corrosion
AFC Base Tubes
Carbon steel, stainless steel, copper-nickel alloy
AFC Fins
Aluminum, copper, or stainless steel
Support Structure
All steel, hot-dip galvanized or anti-corrosion coated for harsh outdoor environments

Our advantages

Application fields

Power Plants
Direct air cooling systems for steam turbine exhaust (thermal and nuclear)
Petrochemical
Steam condensation at atmospheric and vacuum distillation units
Refining
Oil and gas cooling at distillation and catalytic cracking units
Chemical
Process gas cooling for ammonia and methanol plants
Natural Gas
CNG cooling, LNG pretreatment, offshore oil and gas platforms
Others
Power islands, geothermal stations, Organic Rankine Cycle

Gallery

ACC unit
AFC assembly in factory
AFC process cooler
AFC field installation
ACC export to Japan

Related engineering

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