SERPENTINE COILS

SERPENTINE COILS

Heat transfer solution for compact devices and portable applications

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SOLUTION FOR COMPACT COOLING APPLICATIONS

Serpentine heat exchangers are the most compact and minimal in volume microchannel coils – without manifolds in their design. This arrangement enables serpentine coils for small, space-saving, and lightweight cooling applications. Being robust by design and manufactured from high-quality aluminum alloys, these heat exchangers assure long operating life even under extreme conditions.

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Serpentine microchannel coil

SERPENTINE CONDENSER / EVAPORATOR DESIGN

Serpentine heat exchanger typically consists of a single microchannel tube bent into a serpentine shape, fins, and connection pipes. All components are integrally brazed together in controlled atmosphere brazing (CAB) furnace:

  1. Microchannel tube bent into a serpentine shape
  2. Fin strips
  3. Inlet/outlet connections
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Features and Advantages

For 3kW of heat rejection or cooling, serpentine heat exchangers are the smallest and most versatile heat exchangers in the industry for refrigerant condensers, evaporators in compressorized and pumped loop refrigerant systems, and can be configured as evaporators for non-condensing cooling applications. Serpentine coils are designed to deliver maximum heat transfer, reliability, and easy packaging.

  • Selection of aluminum alloys, including SLLA
  • Refrigerant compatibility: HFCs/HFOs, natural gases
  • Single- or multiple-circuit designs
  • Designs with multiple coil cores
  • Selection of flat our louvered fins
  • Connections made from copper or aluminum
  • Mountings made to order
  • Protective coatings

Applications

Serpentine heat exchangers are perfectly suitable for any compact cooling or heat rejection solution as a condenser or evaporator coils, be it stationary systems or systems in constant motion. Using serpentine microchannel heat exchangers, some thermodynamically efficient but flammable refrigerants can be extended to more applications – thanks to the small internal volume of the coil and less refrigerant charge.

  • Electronics cooling
  • Medical applications
  • Laser cooling
  • Military applications
  • Rack-mounted cooling systems
  • Portable cooling solutions
  • Beverage and ice-making applications
  • Fractional horsepower equipment

PRODUCT SPECIFICATIONS

Max width [mm] 25 … 500
Max height [mm] 25 … 400
Tube width [mm] 12/16/20/25/32/36
Manifold diameter [mm] 16/20/25/30/32/38/42/50
Fin types FLAT/LOUVERED
Fin pitches [FPI] 10/16/18/19/21/23/24/BY REQUEST
Design pressure [bar] 32/45
Refrigerants HFC/HFO/NATURAL
Protective coatings E-COATING/TCP-COATING/HYDROPHILIC
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