A-frame & V-frame, forced & induced draft steam condensing systems that condense turbine exhaust steam directly to air — eliminating water consumption for power plants, waste-to-energy facilities, and process industries.
An air cooled condenser (ACC) is a direct dry-cooling system: turbine exhaust steam is routed through a duct and riser into a distribution manifold, then condenses inside finned tube bundles as ambient air is forced or induced across the fin surface by axial flow fans. The condensate collects in a tank below the structure and returns to the boiler feed system, while a vacuum unit maintains the low back-pressure that keeps the turbine running efficiently.
Because the condensing side never touches water, an ACC lets a plant site anywhere water is scarce, expensive, or environmentally restricted — without compromising on turbine efficiency or design life.
Every ACC follows the same steam-to-condensate path, engineered around the plant's specific back-pressure and site conditions.
Turbine exhaust steam travels through a large-diameter duct and riser up to the distribution manifold at the top of the structure.
The manifold splits steam evenly across parallel finned tube bundle streets mounted on the A-frame or V-frame structure.
Steam condenses inside the finned tubes as ambient air, drawn or forced across the fins by axial fans, carries away the latent heat.
A dedicated vacuum system removes air and non-condensable gases, maintaining the low back-pressure the turbine cycle depends on.
Condensate drains by gravity into a collection tank and is pumped back to the boiler feedwater system.
Fan position and structural orientation are chosen against site wind conditions, footprint, and maintenance access.
Fans sit below the finned tube bundles in cooler inlet air, pushing air upward through the fins. Easier fan and gearbox maintenance access, with no auxiliary cooling needed for motors.
Fans sit above the bundles in the warm outlet air stream, pulling air upward through the fins. Improved constructability, shorter erection time, and reduced sensitivity to wind effects on performance.
Bundles are arranged in an angled roof-like A-frame or a shallower V-frame, maximizing fin surface area exposed to airflow within a compact ground footprint.
Flat aluminum-clad tubes with brazed aluminum wavy fins — higher surface area and air turbulence per row, favored for compact, high-efficiency modules.
Electric-resistance-welded carbon steel tubes with circular aluminum L-foot or KL-foot fins — the standard heavy-duty configuration for large utility-scale ACCs.
Multi-channel flat tube geometries increase internal surface area for demanding low-ambient-temperature performance requirements.
Fabrication, structural steel, and controls capability sized for full ACC packages.
Large-diameter duct and riser sections engineered for low pressure-drop steam conveyance from the turbine to the manifold.
Manifold headers sized to distribute steam evenly across every tube bundle street on the structure.
Single-row and multi-row bundle assembly matched to the selected tube and fin technology.
Fan, motor, and gearbox assemblies mounted on a structural drive bridge, sized for forced or induced draft duty.
Structural steel fabrication for the load-bearing frame that elevates the bundle streets above grade for proper air intake.
Collection tanks and piping engineered to gather condensate and return it to the boiler feedwater system.
Vacuum unit sizing and integration to maintain design turbine back-pressure and remove non-condensable gases.
Structural access systems supporting safe inspection and maintenance at height.
Louvered vents for thermal regulation in cold climates, plus vibration monitoring on fan and drive assemblies.
Factory-assembled coil bundles with integrated steam headers reduce on-site erection time and structural steel compared to conventional field-built A-frames.
Induced-draft configurations optimized for waste-to-energy, biomass, and industrial cogeneration capacities, trading fan power for a smaller footprint and lower foundation loads.
Standardized box modules assembled into the required capacity, minimizing on-site welding for small-to-mid scale plants in the 1–30 MWe range.
Tube-to-header and structural welds inspected and tested to the applicable fabrication code before assembly.
Finned tube bundles pressure-tested to verify condensing-side integrity ahead of dispatch.
Axial fan and drive assemblies balanced and vibration-checked before installation to protect long-term reliability.
Fossil fuel-fired, combined cycle, and geothermal power plants condensing turbine exhaust steam without water intake or discharge.
Compact, induced-draft ACCs sized for waste incineration, biomass, and industrial cogeneration plants.
Process steam condensing for refineries, petrochemical plants, steel mills, and sugar mills.
Dry cooling eliminates makeup water and blowdown discharge where water rights or environmental permits are the limiting factor.
A-frame vertical arrangement keeps the ground footprint compact for plants sited close to population centers.
Dry cooling for concentrated solar power and industrial co-generation plants where water use is tightly constrained.