Alfa Laval Air Cooled Exchanger (ACE)

The Alfa Laval Air Cooled Exchangers or commonly known as ACE is a key addition to the Alfa Laval’s complete heat exchanger portfolio. ACE uses convectional cooling to cool a process fluid. It consists of a fan that provides cooled air to the process fluid flowing in a tube bundle. ACE uses the finned tube technology which enables it to reach high temperature up to 1000°F and high pressure up to 5500 psi. The tube bundle can be as long as 8 feet, wide as 15 feet and have a maximum of 6 rows. The header box is designed as per ASME appendix 13 standards. The tube size ranges from ¾ inch to 1 ½ inch. ACE can also be used for close temperature approach of 10°F. The fan can be driven either by an engine or a motor. It can also be configured to forced draft or induced draft. There are two types of ACE namely vertical and horizontal.

Product Range

Horizontal Air Coolers

Allows multiple fan designs and is more flexible in sizing| Common in process industries

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    Alfa Laval Air Cooled Exchanger Model E

    Model E

    Forced Draft or Induced Draft
    VFD capable electrical motor
    Up to 5 fans configurations

    Model T

    Forced Draft
    Engine motor
    Up to 5 fans configurations

    Alfa Laval Air Cooled Exchanger Model V

    Model V

    Induced Draft
    VFD capable electrical motor
    Up to 4 fans configurations

    Vertical Air Coolers

    Allows multiple fan designs and is more flexible in sizing| Common in process industries

    Alfa Laval Air Cooled Exchanger Model A

    Model A

    Forced Draft
    Electric motor driven or Engine driven
    1 fan only with range from 4’ to 28’ in length

    Model C

    Induced or Forced draft
    Electric motor driven or Engine driven
    1 fan only with range from 2.5’ to 16’ in length

    Alfa Laval Air Cooled Exchanger Model J

    Model J

    Induced Draft
    Electric motor driven or Engine driven
    1 fan only with range from 4’ to 28’ in length

    Advantages

    Air Coooled Exchanger Header Installation

    Header Installation

    Alfa Laval has reinvented the Air-cooled heat exchanger by investing more than 100 million dollars to its R&D. Alfa Laval has made ACE a better solution when compared to a cooling tower. The cooling tower uses water from water body (lake, sea etc.) to cool down process fluid but water is not always easily available, in such situations ACE can be used. ACE does not require any cooling water which also eliminates the risk of fouling, usually found in a cooling tower. Eliminates the risk of Legionnaire’s Disease which is typically spread by water droplets from cooling towers. ACE has a low operating cost, operates as unmanned stations, easily installed and environmentally friendly.

    Air Cooled Exchanger Tube Installation

    Tube Installation

    ACE uses finned tube technology. The fins act as a turbine and creates huge turbulence. This increases the sheer stress which improves performance by 15%. These tube bundles are rolled on to a header box which enables it to reach high pressures. Welding changes the metallurgy of the tube thereby decreasing its strength. The tube bundles are easily accessible through the header box for inspection and maintenance. These tubes can be pressure washed for unplugging.

    High Performance Fins

    Fin Types

    There are different fin types for different applications

    L-Tension Fin Type

    L-Tension: Low Temp Applications

    Embedded: High Temp Applications

    Extruded Fin Type

    Extruded: Medium Temp or Corrosive Atmosphere

    Applications

    ACEs can be used in a variety of applications including:

    • Gas compression stations
    • Industrial engine cooling
    • Gas transmission facilities
    • Refineries
    • Chemical processing
    • Refrigeration condensers
    • Power Generation

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