K Value Of Glass Wool

Typical thermal conductivity values for glass wools are between 0 023 and 0 040w m k.

K value of glass wool. Rockwool limited registered in england and wales. 972252 pencoed bridgend cf35 6ny united kingdom. Emissions associated with the manufacture of glass wool mostly in energy generation. The process traps many small pockets of air between the glass and these small air pockets result in high thermal insulation properties.

Calculate conductive heat transfer. Glassrock production capacity is 30 000 mt year of rock wool products and 20 000 mt year of glass wool products. In a foam like structure. Notes to the table above.

Glass wool is an insulating material made from fibres of glass arranged using a binder into a texture similar to wool. Glass wool is produced in rolls or in slabs with different thermal and mechanical properties. 2 there is the typical response for mj 02 sample. To compare wool to other common insulators examine the table below here the conductivities are given in watts per meter kelvin w mk where the lower value is the better result insulation material conductivity k value sheep wool insulation certified europewide ce value 0 039 w mk glass wool 0 044 w mk mineral rock wool 0 042 w mk.

Mineral wool insulation thermal conductivity temperature and k values mortar types astm mortar types nitrogen thermal conductivity online calculator figures and tables showing thermal conductivity of nitrogen n 2 at varying temperarure and pressure si and imperial units. Rock wool also known as mineral wool or stone wool is manufactured from molten rock in a furnace through which a stream of air or steam is blown at temperature of about 1600 c. A h 2 tm fa 2 2 specific heat c m f h t q c 2πe ρ 3 thermal conductivity a c m f f t t qh ac 22 πe λ ρ 4 where h is sample thickness ρ is density of material and tm is maximal temperature response for applicated thermal pulse. In general thermal insulation is primarily based on the very low thermal conductivity of gases.

Inorganic rock or slag are the main components typically 98 of stone wool the remaining 2 organic content is generally a thermosetting resin binder an adhesive and a little oil. Gases possess poor thermal conduction properties compared to liquids and solids and thus makes a good insulation material if they can be trapped e g. Mineral wool is made from molten glass stone or slag that is spun into a fiber like structure. Notes on the r value k values of different forms of asbestos.

Uk emissions are within legally defined limits.