VDI 4610 Blatt 2:2014-03

This standard applies to thermal insulation at operational installations in industry and in the building services. To be able to calculate the overall heat loss of an installation, the heat losses via thermal bridges must also be known. This standard, therefore, provides formulae and tables for thermal bridges. Because of the multitude of diverse components and modalities of installation related thermal bridges, the thermal bridges catalogue cannot claim completeness. For the manifold components, such as flanges and fittings, marketable versions have been selected. Installation related thermal bridges like supports and suspensions have been limited to standard constructions. Special solutions cannot be covered in this standard and need to be calculated individually using the so called fin equation according to Annex B of the standard, or the finite element method. In addition to the heat loss flow coefficients, normalised/dimensionless temperatures are also given.