insulation Archives - Thermtest Inc.

Effect from a Variable U-Value in Adaptive Building Components with Controlled Internal Air Pressure

Author(s): Axel Berge, Bijan Adl-Zarrabi, Carl-Eric Hagentoft, Paula Wahlgrena

In an environment that experiences drastically changing temperatures it is potentially more energy efficient to use insulative walls that can change their apparent thermal conductivities. This paper suggests a nano-porous ...

Keywords: building energy, energy balance, GHF, Guarded heat flow meter, heating, insulation, Nanoporous materials, Thermal Conductivity, U-values

Intercomparison of thermal conductivity measurements on an expanded glass granulate in a wide temperature range

Author(s): Ernst-G. Hencke, Hans-Peter Ebert, Roland Schreiner

This article aimed to compare the thermal conductivity of expanded glass granulate at high temperature ranges using a variety of steady state and transient testing methods (Guarded Hot Plate, Heat ...

Keywords: expanded glass granulate, High Temperature, Hot Disk, insulation, Insulation material, Technical insulation material, transient plan source technique, Transient plane source (TPS) technique, VDI/Keymark

Thermal Conductivity and Moisture effect of Some Major Elements of a Typical Middle Eastern House Envelope

Author(s): B. M. Suleiman

The Hot Disk TPS was used to measure the thermal conductivity of three common building materials in Libyan houses. Newer constructions in Libya do not use the same thick building ...

Keywords: building materials, construction materials, hard bricks, Hot Disk TPS, insulation, soft bricks, soft soil, Thermal Conductivity, thermal envelope, thermal management

A combined finite-discrete element method for calculating the effective thermal conductivity of bio-aggregates based materials

Author(s): Arnaud Alzina, B. Nait-Ali, D. S. Smith, F. Pennec, H. De Baynast, N. Mati-Baouche, N. Tessier-Doyen

This study used a two part process to create a system that would predict the thermal conductivity of insulated building materials containing plant materials. A finite-discrete element method was used ...

Keywords: , 3D optical scanner, building materials, discrete element method, finite-element method, hetergeneous materials, Hot Disk TPS, insulation, plant material, sunflower pith, Thermal Conductivity

Thermal Load Calculations of Multilayered Walls

Author(s): B. M. Suleiman

This study was performed in an effort to improve the comfort and thermal design of Libyan houses by analyzing the current thermal resistance (R-values) of the most commonly used building ...

Keywords: building envelope, construction, Hot Disk TPS, insulation, masonry, multi-layered walls, seasonal temperature variation, Thermal Resistance

Use of silicon carbide sludge to form porous alkali-activated materials for insulating application

Author(s): E. Joussein, E. Prud'homme, S. Rossignol

In an effort to be more environmentally friendly, the construction industry is investing more in 'green' concretes and insulation materials. The purpose of this research was to create a porous ...

Keywords: alkali-activated materials, concrete, construction, environmentally friendly construction materials, Geopolymer, geopolymer concrete, insulation, porosity, Scanning Electron Microscope, Scanning electron microscope (SEM), SEM, silicon carbide sludge, Thermal Conductivity, thermal performance

Effect mechanism of mixing on improving conductivity of asphalt solar collector

Author(s): C. J. Sun, M. Y. Chen, N. Tang, P. Pan, S. P. Wu

Asphalt solar collector (ASC) is a conductive asphalt concrete and an eco-friendly method to de-ice roadways. This study examined if the addition of conductive fillers and various mixing parameters could ...

Keywords: Asphalt, Asphalt solar collector (ASC), Carbon Fiber, Carbon fibers, Computed tomography (CT), concrete, conductive, Fillers, graphite, Hot Disk, insulation, Microstructure, Mixing parameters, Orthogonal, powder, Scanning Electron Microscopy (SEM), Temperature, Thermal Conductivity, Transient plane source (TPS), Transient plane source (TPS) method, Volume

Determination of specific heat capacity by transient plane source

Author(s): Axel Berge, Bijan Adl-Zarrabi, Carl-Eric Hagentoft

This study developed a model that used a transient plane source (TPS) sensor to measure the specific heat capacity of anisotropic materials. The underside of a sample holder with a ...

Keywords: anisotropic, Conductance, Heat Capacity, Hot Disk, insulation, isotropic, Sensors, Steel, System, Thermal Conductivity, Thermal Diffusivity, Thermal Properties, thermal properties measurements, Transient plane source (TPS)

Ultralight nanofibre-assembled cellular aerogels with superelasticity and multifunctionality

Author(s): Bin Ding, Jianlong Ge, Jianyong Yu, Xiaomin Tang, Yang Si

Due to their high compressibility and resilience, nanofibrous aerogels (NFAs) have been proven to have positive insluative impacts on various applications with electronics and material damping. Up until this study, ...

Keywords: Aerogel, damping materials, FIBER NFAs, Hot Disk, insulation, Thermal Conductivity, thermal insulation, Transient Plane Source, Transient plane source (TPS) method, Ultralight nanofibre

Novel fire testing frameworks for Phase Change Materials and hemp-lime insulation

Author(s): M. S. McLaggan

To maximize the energy efficiency of a building, and to minimize its carbon footprint, novel insulants have been extensively studied. Novel insulants such as phase change materials (PCMs) and hemp-lime ...

Keywords: building materials, energy consumption, Fire testing, Hemp-lime, Hot Disk, insulation, pcms, phase change materials, smouldering combustions, Thermal Conductivity, Transient Plane Source, Transient plane source (TPS) method

Keyword: insulation