Product/Service

Air Cooled Heat Exchangers

Source: Unifin International, Subsidiary of Koch Industries

Air Cooled Heat Exchangers
Unifin's air cooler products typically consist of a bundle of finned tubes, or core, fabricated most often with "Hifin" tubing which offers a combination of ruggedness and thermal efficiency.
Unifin's air cooler products typically consist of a bundle of finned tubes, or core, fabricated most often with "Hifin" tubing which offers a combination of ruggedness and thermal efficiency. The bundles of finned tube are arranged with a cabinet which houses an array of fans. The fans provide a cooling air flow over the finned surface to effect heat transfer from the hot liquid or gas inside the tubes to the atmosphere. Unifin offers design units for horizontal or vertical air flow, for forced or induced draft air flow, with direct-driven, gear-driven or V-belt-driven fans in a variety of combination. To suit field installation conditions the entire unit is most often securely supported by a steel structure.

Applications for this product have ranged from diesel engine jacket water cooling and gas turbine lube oil cooling on to the cooling of high voltage direct current (HVDC) thyrister valves and static compensators. These air coolers are favored wherever high thermal efficiency, dependability and long life, and exceptionally rugged application requirements exist.

Two basic standard types fill many industrial requirements

Type UFC
Available in 18 basic sizes ranging from 29 in. x 29 in. to 66 in. x 277 in., it incorporates 1 to 4 fans per section (direct drive only). UFC construction normally utilizes a multi-row, U-tube cooling core. Standard or heavy duty frames and removable cover plate core construction are options. UFC can have either vertical or horizontal air flow arrangement.

Type UAC
Core sizes up to, but not limited to 12 ft. x 40 ft. For very large applications, multiple units can be arranged. Tube UAC can be supplied with multiple fans per section or with only a few very large fans. Air flow can be forced or induced over the bundle with direct, gear or V-belt drives. Both plug headers and removable cover plates are available.

Unifin International, Inc., 1030 Clarke Side Rd., Box 5395, Stn. B, London, Ontario, Canada N6A 4P4. Tel: 519-451-0310 or 800-567-5707. Fax: 519-451-1732 or 800567-1732.