WP2 of CANDHy project started with the analysis of the materials present in the natural gas distribution network of EU countries, including Ukraine and the UK. A total of 29 countries have been analysed, reporting an overall length of 2,471,198.91 km of natural gas distribution network.
For this network, not only the pipe materials present were analysed, to establish which materials should be tested in the experimental campaigns, but also other aspects such as the odorant used in the network, the nominal diameter, thickness and installation time of the pipes, the materials used in the accessories and the auxiliary elements installed in the network and the welding material. These aspects were examined in order to be able to determine the operating conditions of the gas grid materials.
To obtain all this information, with the highest level of detail, Redexis together with FHa, RINA and SIDSA developed a survey that was sent to several DSOs and National Gas Associations, along with GERG. The survey was sent to a total of 43 entities from several countries, and the information obtained represented the grid of the following countries: Austria, Belgium, Germany, Greece, Italy, Portugal, Slovakia, Spain and Ukraine.
For the first analysis of the grid, the pipe materials were divided into steel materials, non-steel metallic materials and non-metallic materials, in order to know how much of the network is built by each type.
This document reports the results obtained.
