Air-cooled Heat Exchangers

Fabsco air cooled heat exchangers (ACHX) are exchangers that use ambient air to pull heat from a liquid or gas stream.  These exchangers can be either horizontal or vertically configured, with either forced or induced draft air.  ACHX require no cooling water, and operational costs are lower than other types of exchangers.

Air cooled heat exchangers are primarily used in several applications, including:

  • Condensing

  • Gas compression

  • Petrochemical

  • Petroleum refining

  • Power generation

  • Refrigeration

Shell & Tube Heat Exchangers

Shell and tube heat exchangers are the most common type of heat exchanger in oil refineries and other large chemical processes, and are well suited for high pressure applications.  As its name implies, they consist of a shell (large pressure vessel) with a bundle of tubes inside it.  One fluid runs through the tubes, while another fluid runs around the tubes to transfer heat between the two. The set of tubes is called the tube bundle, and may be composed of either bare or finned tubes.  Fabsco manufactures shell and tube exchangers in various configurations, including U-tube and straight tube designs, single or multi-pass, and single or dual phase.

Brazed Aluminum Heat Exchangers

Fives has manufactured more than 10,000 brazed aluminum heat exchangers (BAHX) since 1959. BAHX's offer several advantages over conventional exchangers:

  • Compact: 4-5x less surface area per volume

  • Lighter weight

  • Improved behavior under cryogenic temperatures

  • Larger temperature gradients from warm end to cold end

  • High and low pressure streams can be in the same exchanger

 

Hairpin Shell and Tube Heat Exchangers

R. W. Holland has been manufacturing hairpin shell and tube heat exchangers since the 1970's.  This style of heat exchanger offers several advantages over conventional exchangers:

  • Operates in true counter current flow, permitting extreme temperature cross

  • Economically adaptable to service differentials

  • Ideal for wide temperature ranges and differentials

  • Standard double pipe or multi-tube design reduces engineering, thermal design, drafting and shop fabrication costs

 

Cold Boxes

A Fives cold box includes one or more integrated brazed aluminum heat exchanger(s) in a carbon steel casing.  These cold boxes combine brazed heat exchangers with any type of complementary cryogenic equipment, such as:

  • Knock-out drums

  • Two-phase injection drums

  • Distillation columns

  • Interconnecting piping

  • Valves and instrumentation