INDUSTRY COMPONENT

Superinsulation

Advanced multilayer insulation system for cryogenic storage vessels providing ultra-low thermal conductivity.

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Component Specifications

Definition
Superinsulation is a specialized thermal insulation component used in cryogenic storage vessels, consisting of multiple alternating layers of highly reflective radiation shields and low-conductivity spacer materials arranged in high-vacuum environments to minimize heat transfer through radiation, conduction, and convection, enabling long-term storage of cryogenic fluids with minimal boil-off losses.
Working Principle
Operates on the principle of combined heat transfer suppression: 1) Multiple reflective layers (typically aluminum or gold-coated polymer films) reduce radiative heat transfer through successive reflection, 2) Low-conductivity spacer materials (glass fiber, polyester, or ceramic papers) separate layers to minimize solid conduction, 3) High vacuum environment (typically <10^-3 mbar) eliminates gaseous conduction and convection, achieving thermal conductivities as low as 0.0001 W/m·K.
Materials
Radiation shields: Aluminum-coated polyester (PET) films (12-25 μm thickness, 0.03-0.05 emissivity), Gold-coated polyimide films for extreme applications; Spacer materials: Glass fiber paper (10-50 gsm), Polyester non-woven fabric, Silica aerogel-infused materials; Edge sealing: Butyl rubber or epoxy-based barriers; Support structures: Polyimide or fiberglass reinforced frames.
Technical Parameters
  • Density 5-20 kg/m³
  • Layer count 30-100 alternating layers
  • Vacuum level <10^-3 mbar
  • Total thickness 10-50 mm
  • Radiation heat flux <1 W/m² at 77K
  • Compressive strength 0.5-5 kPa
  • Thermal conductivity 0.0001-0.0005 W/m·K
  • Operating temperature -269°C to 100°C
Standards
ISO 21014:2019, DIN 28400-2, ASTM C177, EN 14314

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Superinsulation.

cryogenic insulation multilayer insulation vacuum insulation LNG storage thermal insulation systems low boil-off radiation shields cryogenic vessels Superinsulation Superinsulation in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Cryogen Storage Vessel

A specialized container designed to store cryogenic liquids at extremely low temperatures within a cryogenic injection system.

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Engineering Analysis

Risks & Mitigation
  • Vacuum degradation over time
  • Mechanical damage during installation/maintenance
  • Radiation shield oxidation
  • Spacer material compression
  • Thermal bridging at penetrations
FMEA Triads
Trigger: Vacuum system leakage
Failure: Increased thermal conductivity leading to excessive boil-off
Mitigation: Regular vacuum monitoring, redundant sealing systems, helium leak testing during maintenance
Trigger: Mechanical compression during installation
Failure: Reduced insulation performance due to increased solid conduction
Mitigation: Proper installation procedures, use of compression-resistant spacers, installation training programs
Trigger: Radiation shield degradation
Failure: Increased radiative heat transfer
Mitigation: Use of corrosion-resistant coatings, controlled atmosphere during manufacturing, regular infrared inspection

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Layer alignment ±1 mm, Vacuum level ±10% of specification, Thermal conductivity ±15% of rated value
Test Method
Guarded hot plate method (ASTM C177), Heat flux measurement, Vacuum integrity testing (helium mass spectrometry), Cryogenic boil-off testing

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary advantage of superinsulation over conventional insulation?

Superinsulation achieves thermal conductivities 10-100 times lower than conventional foam or fiberglass insulation through the combined effect of multiple radiation barriers and high vacuum, significantly reducing boil-off losses in cryogenic storage.

How many layers are typically used in superinsulation systems?

Commercial superinsulation systems typically contain 30-100 alternating layers of radiation shields and spacers, with optimal performance achieved through careful balancing of layer count, material selection, and vacuum quality.

What maintenance is required for superinsulation systems?

Superinsulation requires periodic vacuum integrity checks (typically annually), visual inspection for physical damage during vessel openings, and potential re-evacuation if vacuum levels degrade beyond specified limits.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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