Facebook

High pressure vesseles

The best strength-to-weight ratio

Industry

Compressed air, oxygen, nitrogen, acetylene, and other gases are usually contained in vesseles at 16–20 MPa for storage and transportation. They are most often made by swaging the ends of seamless solid drawn tubes with a pressing tool.

Modern composite high pressure vesseles have a pressure shell of carbon fiber wound over the liner and impregnated with resin.

Pressure gas storage and transportation safety.

Advantages of carbon composites

Carbon reinforced vesseles are strong, reliable, and lightweight.

Carbon fiber extends the life of high pressure vesseles.

Advantages of carbon fiber composites in high pressure vesseles:

  • Light weight
  • High strength
  • High specific rigidity
  • Low deformability

Carbon fiber versus other materials

Fiber type




Tensile strength, MPa Tensile modulus, GPa Elongation at break, % Density, g/cm3
Carbon fiber made of PAN precursor high strength, standard modulus 3500-5000 200-280 1.4-2.0 1.75-1.80
high strength, intermediate modulus 4500-7000 280-325 1.7-2.1 1.73-1.81
high modulus 3500-5000 325-450 0.7-1.4 1.75-1.85
ultra high modulus 2500-4000 450-600 0.7-1.0 1.85-1.95
Glass E-glass 2500-3800 70-75 4.5-4.7 2.5-2.7
S-glass 4000-4500 80-90 5.0-5.3 2.5
Organic Aramid 3000-3600 60-180 2.4-3.6 1.45
Polyethylene 200-3000 5-170 3-80 0.96
Steel high strength 1200-2800 200 3.5 7.8
stainless 800-2000 190 3.0 7.8
Basalt 3000-4800 90-110 3.0 2.6-2.8
Boron 3500-4000 350-400 0.5-0.7 2.6

Applications


Vesseles for storage and transportation of pressure gases are required to have a high tensile strength. Weight to total pressure and weight to maximum pressure is also critical. A metal cylinder reinforced with carbon fiber composites features a lighter weight, higher resistance to corrosion and aggressive media.

Safety is important for vesseles. This is why carbon fiber is valued in making of fire and explosion safe non-shattering vesseles.

Summary


Carbon fiber reinforced pressure vesseles feature an improved design, lighter weight, and higher strength for safe storage and transportation of pressure gases.