Foam glass knowledge base

Foam glass conductivity in cryogenic and LNG insulation: a calculation workflow

Thermal conductivity for cryogenic and LNG insulation: evidence, application limits, detailing and acceptance.

In brief: thermal conductivity for cryogenic and LNG insulation. The project outcome is that the design value is traceable from the data sheet to the installed layout.

Thermal conductivity: design task for cryogenic and LNG insulation

In a cryogenic system, thermal conductivity needs layer-by-layer logic, sealed joints and inspection of every barrier.

In cryogenic and LNG insulation, thermal conductivity requires multilayer construction; also check thermal movement and the vapour-gas barrier.

Thermal conductivity: application boundary in cryogenic and LNG insulation

In cryogenic and LNG insulation, thermal conductivity has an important boundary. A tabulated conductivity is not the thermal resistance of the finished construction.

For thermal conductivity in cryogenic and LNG insulation, address this specific risk: unaccounted movement of adjoining materials or moisture ingress.

Thermal conductivity: evidence for cryogenic and LNG insulation

For cryogenic and LNG insulation, the thermal conductivity source states: For D130, the declared maximum is 0.046 W/(m·K) at (10±1) °C and 0.048 W/(m·K) at (25±1) °C.

For thermal conductivity in cryogenic and LNG insulation, apply this principle. The calculation must account for the test temperature and the condition of the complete assembly, rather than relying on one table value.

Thermal conductivity: detailing for cryogenic and LNG insulation

The cryogenic and LNG insulation drawing develops thermal conductivity through two decisions: joint stagger; then sealing compound and inspection hold points.

For thermal conductivity in cryogenic and LNG insulation, dimensions and interface materials belong in the design, not in an improvised site decision.

Thermal conductivity: inputs for cryogenic and LNG insulation

Before assessing thermal conductivity in cryogenic and LNG insulation, obtain design temperatures, moisture conditions, layer thicknesses, thermal bridges and the calculation method.

For cryogenic and LNG insulation, the verifiable thermal conductivity requirement is to record the design temperature, adopted conductivity and value source in the design report.

Thermal conductivity: installation in cryogenic and LNG insulation

The installation rule for thermal conductivity in cryogenic and LNG insulation is to exclude damp substrates and document every layer before it is covered.

During cryogenic and LNG insulation work concerning thermal conductivity, check installed thickness and continuity before the next layer hides the insulation.

Thermal conductivity: accepting work in cryogenic and LNG insulation

Acceptance of thermal conductivity in cryogenic and LNG insulation starts by matching delivery labels, drawings and the installed layout.

For thermal conductivity in cryogenic and LNG insulation, close the identified risk with a photograph, measurement or record, not a verbal explanation.

The final cryogenic and LNG insulation criterion for thermal conductivity is that the design value is traceable from the data sheet to the installed layout.

Thermal conductivity: conclusion for cryogenic and LNG insulation

In cryogenic and LNG insulation, foam glass delivers its thermal conductivity benefit through a coordinated detail, not one schedule entry.

The cryogenic and LNG insulation workflow for thermal conductivity is to evidence the property, issue the detail, accept installation and retain concealed-work records.

Topics: foam glass, LNG, thermal conductivity, NEOPORM

This material is informational. Final decisions on thickness, details, fixings and compatible compounds must follow the project documentation, current technical data sheets and the conditions of the specific facility.