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Initial work in the OnCord project has started. A Kick-off meeting was held and all partners had the opportunity to introduce themselves and to discuss their role in the project. The project website was set up, and a data-sharing system provided to enhance communication among the partners. The requirements for common test fuels, i.e. coals, biomass and SRF materials and a database of fuel properties were agreed. The arrangements for the procurement and distribution of the fuel samples were planned. The analysis and initial testing of some of the fuels has been done and the data are available to partners. The requirements for online corrosion sensors and other instrumentation (flue gas analysis, online particle measurement system, deposit probes etc.) were discussed. The relevant test materials to be mounted on the corrosion sensors and material loss probes have also been discussed. The small-scale test facilities are being prepared for the experiments planned in the first part of the project, and the initial steps of planning for the subsequent larger scale tests has commenced. Boundary conditions, geometric data and model parameters have been collected for modelling of the pulverized fuel systems. Initial discussions were held on the modelling activities on the circulating fluidized bed site of the project. The identification of the host sites for the plant scale testwork has commenced, and discussions are being held with the site operators. The new partner Bilfinger (Babcock Borsig Steinmueller, BBS) has been integrated in the project and will take over the part of Corrmoran (Corr).

The corrosion performance of three different superheater austenitic steels (TP347HFG, HR3C and Sanicro 25) has been determined in laboratory tests under simulated oxy-fuel conditions (60 CO2 - 4 O2 - bal N2/Ar vol%) with three levels of H2O (0, 10 and 30 vol%), with and without a synthetic carbonate based deposit (85 CaCO3 - 15 CaSO4 wt%) at 650ºC for 168, 500 and 1000 hours. The results obtained from oxy-fuel conditions are compared with corresponding tests simulating conventional air-combustion and co-combustion in air (with and without the 85CaO-14CaSO4-1KCl synthetic deposit). The results from the 168 h tests in a moist and a high CO2 atmosphere showed clear corrosion of TP347HFG. In addition, carburisation was observed already in the 168 h tests with the CaCO3-CaSO4 deposits. The HR3C and Sanicro 25 performed better than TP347HFG. However, growing oxide nodules could be observed already after 168 h in some cases with HR3C and Sanicro 25. A clear oxide layer was observed on all materials after 168 h exposures in air, while oxy-fuel conditions with water vapor caused significant corrosion only to the TP347HFG.