At the beginning of 2014, 700 meters of HOBAS GRP Pipes DN 1400 and DN 2200, 11 bends DN 2200, 9 tees, and a custom-made Y 2200/1400 mm were delivered to the new CCPP in Bouchain. Since the pipeline installation was part of a bigger project, the schedule had to be strictly observed – penalties for delays would have been very expensive. The logistics on site were also very challenging: The construction area was strictly guarded, and deliveries could only be made at fixed times.
The pipeline was laid in open trench under the constant supervision of HOBAS Engineers. Due to the rather mediocre soil conditions on site, the cooling loop had to present a longitudinal flexibility at some key points. The use of short pipes and the admissible angular deflection of the HOBAS FW Coupling enabled the necessary flexibility and helped avoid high stresses.
Thanks to their high chemical resistance, light weight, long lifetime, plus the possibility for tailor-made fittings...
...HOBAS Products meet the high demands of EDF and represent and ideal solution for this application.
Some laminating also had to be realized on site. Four lamination experts from HOBAS Germany were entrusted with this since they have the necessary skills, safety know-how, and equipment to work in confined spaces. They did an excellent job in building laminates with a very high load capacity, which also passed the final pressure test with flying colors.
After the successful completion of the project in August 2015, the Bouchain CCPP ranks among the most efficient power plant systems in the world. It avoids more than 50 % of CO2 emissions in comparison to a coal-fired power plant and it features 2/3 less nitrogen oxide emissions and no sulphur oxide emissions. Its capacity of 510 megawatts equals the energy consumption of 600,000 houses. And the efforts of HOBAS France also paid off in further respects: The organization obtained a special certification by EDF, which authorizes it to be one of EDF’s suppliers and entitles HOBAS Engineers to bring in their expertise at EDF’s plants.