Frame distance Tanktop height Compact element (m²) Standard element (m²)
500 800 17,6
500 1000 22
500 1200 26,4
600 800 25,6 29,6
600 1000 32 37,1
600 1200 38,4 44,5
600 1500 48 55,8
700 800 30,1
700 1000 37,7 55,5
700 1200 45,2 66,8
700 1500 56,6 83,8
800 1000 43,4 75,1
800 1200 52,1 94,7
800 1500 65,2 114,3
Video

Solving Seawater Cooling

Key features

Key features of a Sperre Rack Cooler



  • Unique maintenance friendliness
  • Constant and efficient cooling
  • Saves space in engine room
Easy maintenance

Easy inspection and maintenance
– designed especially for offshore vessels

High efficiency

Closed tank system – forced flow


High efficiency

  • Closed tank system in which frequency-controlled pumps distribute seawater regardless of the vessels speed
  • Twice or three times the heat transfer (K-value) that box coolers can provide


Save space

Rack cooler saves space in engine room

Sperre Rack coolers for 4 engines Plate coolers for one engine
Sperre Rack coolers for 4 engines Plate coolers for one engine


Benefits

Potential savings Rack vs Plate Heat Exchanger



  • Reduzed energy-consumption on the seawater pumps
  • Chilled-Water Unit (reduzed need of chilled-water compressors)
  • Heat Recovery Unit (can be used for anti-icing, heating cargo etc.)
  • Less maintenance (longer intertvals and fewer parts)
References

Sperre Rack references


  • Vessel: Siem Daya, Shipowner: Siem Offshore, Yard: Vard

  • Vessel: Skandi Iceman, Shipowner: DOF, Yard: Vard

  • Vessel: Island Ventures, Shipowner: Island Offshore, Yard: Ulstein

  • Vessel: Normand Reach, Shipowner: Solstad Offshore, Yard: Vard

  • Vessel: CSS Seabreeze, Shipowner: MAC/Shell, Yard: Vard

  • Vessel: RO Arctic, Shipowner: Rostein AS, Yard: Skipskompetanse

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