National Physical Laboratory

Thermal Performance image Publications

NPL's Thermal Performance team provides a wide range of measurement facilities for characterising thermophysical properties of materials and the heat transfer within engineering structures.

EMRP Project ENG06 powerplants: metrology for improved power plant efficiency.

High temperature thermophysical properties of advanced materials for nuclear design.

International comparison on thermal conductivity measurements of insulating materials by guarded hot plate.

NPL guarded hot-plate for measuring thermal conductivity of insulation from -175°C To 50°C.

Design, construction and performance checks of NPL's upgraded high temperature guarded hot plate.

The measurement and estimation of the thermo-physical properties of nickel base superalloys.

Evaluation of the thermal performance of insulation systems used in roof structures.

Thermal conductivity and moisture measurements on masonry materials.

Reference materials for calibration of temperatures in DTA/DSC instruments.

Polymer composites - rate dependent temperature calibration of dynamic mechanical analysers (DMA) for Tg measurements.

An inter-comparison of a steady state and transient methods for measuring the thermal conductivity of thin specimens of masonry materials.

Parameter estimation from laser flash experiment data.

Pyroceram 9606, a certified ceramic reference material for high-temperature thermal transport properties: part 1 - material selection and characterization.

Pyroceram 9606, a certified ceramic reference material for high-temperature thermal transport properties: part 2 - certification measurements.

Tools for Continuous Modelling Case Study 1: the laser flash experiment.

A critical analysis of European standards for thermal measurements at high temperatures: I. History and technical background.

A critical analysis of European standards for thermal measurements at high temperatures: II. Recommendations for inclusion in a new standard.

Intercomparison of thermal conductivity and thermal diffusivity methods for plastics.

Measuring heat transfer through steam grown oxide scales.

The measurement of the thermal conductivity of amorphous polymers above glass transition temperatures.

The effect of pressure on the thermal conductivity of polymer melts.

Thermal diffusivity and thermal conductivity measurements on oxide scales.

NPL initiatives in the development of thermal properties reference materials.

Validation of measurement techniques and the determination of data required for thermal modelling of moist masonry walls.

NPL vacuum guarded hot-plate for measuring thermal conductivity and total hemispherical emittance of insulation materials.

Overview of a project to determine the thermal resistance of masonry walls in dry and moist states and a conversion procedure to determine the appropriate design value.

An inter-comparison of guarded hot plate and heat flow meter apparatus within the United Kingdom and Ireland.

Thermal conductivity of insulations using guarded hot plates, including recent developments and sources of reference materials.

Thermal properties of polymer melts at elevated pressure from compression heating and differential scanning calorimetry.

Characterisation of the fibre-matrix interface by thermal analysis.

Some thermal properties of a copper tin alloy.

Thermal properties of composite materials - results of an interlaboratory comparison.

Thermal property measurements and data on composite materials.

The NPL high temperature guarded hot plate.

Thermal properties of composite materials-measurements, models and thermal exposure derived changes in MMCs and CMCs.

The NPL 610mm guarded hot-plate/heat flow meter standard apparatus for thick insulations.