Heating solutions

bundle-10-heaters

Our MI cable technology for heating solutions can withstand the harshest conditions: high radiation, vacuum or high pressure, aggressive media, high temperatures, high watt density...

When the environment does not permit standard heating solutions, we can offer our services to design a specific heating solution. Our team is used to making designs to match your specifications for:

  • Construction standards (mechanical: ASME,YVL, KTA, RCC-M, RCC-MR, RCC-MX, RCC-MRx electrical: KBE, RCC-E, TBE, IEEE )
  • CATIA thermal and mechanical modeling

 

PRZ (Pressurizer) heaters

Applications

  •  Pressurizer heaters for new-build NPPs (Nuclear Power Plants)
  • PRZ heaters for NPP retrofit
  • PRZ heaters for test loops
  • High watt bundles to simulate transience in test loops

 Key parameters:

  •     Excellent heat conduction
  •     High watt density up to 40W/cm²
  •     Various pressure and heat resistant connector designs
  •     More solid construction than cartridge heaters
  •     Outer Diameter from 17 mm to 31.7 mm
  •     Length from 0.5 up to 12 meters
  •     Connectors up to 260°C, pressure tested up to 260 bars

  Product features:

  •  Unique proprietary manufacturing process for heating solutions
  • 30 years’ operational experience, more than 10,000 PRZ heaters supplied
  • Failure rate 3 times lower than conventional technologies
  • Double barrier system to reduce contamination risk
  • Proprietary solutions to prevent IGSCC  (Stress Corrosion Cracking)
  • Available for any pressurizer dimensions for vertical or horizontal mounting
  •  In-depth knowledge of design using FEA simulations to determine and confirm thermal, electrical and mechanical construction.
  •  Designed and manufactured according major construction standards (ASME, KTA or RCC-M)
  • 1E qualification possible. New configurations qualified by similarity or testing.

Fuel pin simulators

bundle-fuel-pin-eneaApplications

  •  Material characterization of nuclear reactor fuel rods
  • Experiments to reproduce core coolant circulation in steady state, transient and accident conditions
  • Simulation of various fuel designs

 Key parameters:

  •  Precise mechanical construction allowing low internal temperature gradient
  •  Electrically isolated from the coolant
  • Outer diameters from 4 mm up to 22 mm.
  • Watt density up to 220 W/cm². Outer sheath stainless steel and Inconel.
  • Hot section length: from 100 mm up to 3000 mm

  Product features :

  •  Unique proprietary manufacturing process
  •  Linear or cosine heat profile
  •  Proprietary connector designed to withstand voltage, current and temperature
  • Thermocouples can be embedded

Trace heating

Applications

  •  Trace heating for pipes, tanks, plates for fusion and fission reactors.
  • High density heating collar
  • Boron tank heating solutions

Key parameters:

  •  Outer sheath made of Inconel or stainless steel
  • Waterproof & fireproof
  • High operating temperatures permitting high wattage
  • Non-ageing of raw material under flux
  • great mechanical strength
  • Small overall diameter
  • Tight bending radius (down to 3 times outer diameter)
  • Competitive installation cost
  • Radiation resistant
  • Earth continuity along outer sheath
  • Resistance to corrosion optimized by selecting grade of stainless steel
  • No intermediate transition between hot section and cold ends within the same outer sheath (allowing maximum chemical / thermal resistance.)
  • High insulation resistance allowing low leakage current

  Product features :

  • Several connector types available to suit all working conditions
  • All configurations of line resistance, outer diameter and length
  • Several designs of cold / hot transition from low to very high watt density
  • Can be supplied with thermocouple

 

Customized ovens

bundle-10-heatersApplications

  •  Special ovens made on demand
  • Material ageing experiments
  • Heat treatment

 Key parameters:

  • From low temperatures up to 1400°C
  • From a few centimeters up to 1 cubic meter
  • Flexible heating cable offering small dimensions and easy routing
  • No weld in the hot / cold transition offering best reliability
  • High heat flux up to 20 W/cm². High operating temperature
  • Can incorporate instrumentation such as RTD or thermocouple

Product features:

  • Completely mechanical construction
  • Heater integrated to the assembly allowing thermal optimization
  • Enhanced temperature profile

In-Core heating systems

Applications

 Connectors capable of ensuring long term tightness. For power, instrumentation & control solutions in high radiation and/or high temperature environments.

Key parameters:

  • Different solutions available: connectors designed dependent on normal operating conditions and accident condition severity.
  • Can withstand radiation, pressure and temperature of a design Basis Accident
  • Some designs exclude organic compound material

Product features:

  •  State of the art ceramic seals. Qualified resin compound if permitted.
  • LOCA & Post LOCA resistant, severe accident resistant
  • Small dimension, single or multiple contacts
  • Contact pins in nickel or thermocouple material