GTD will develop the electrical interface system with the control bank for the Ariane 6’s launch complex, ELA-4. The system consists in implementing the acquisition of all the electrical components of the fluid processes and to connect them with the communication network of the Ariane 6 Control Bench.GTD’s participation is worth 2M€ and the work is scheduled to be completed by 2019.The system will guarantee the control of about 10.000 inputs/outputs built on the ground fluid process system and connect them with the Control Bench Ariane 6 , installed in the Operational control rooms in Guyana Space Center.This electrical interface system comprises the equipment and the installations necessary for the preparation and launch operations during the phases in which Ariane 6 is located in the integration zone and in the launch pad during the countdown period. These operations will be related to the fluid processes and the interconnection systems of the launcher.These processes are remotely supervised and controlled by the “Ariane 6 Control Bench”, powered by GTD as well.The ELA 4 fluid systems include the distribution lines (and the corresponding storage tanks facilities) to transport the fluids used for fueling the Ariane 6 launcher.The different fluid systems concerned are as follows: Conventional Fluid systems: Process water, Gaseous helium, Gaseous nitrogen, Gaseous hydrogen, Gaseous oxygen, Compressed air, Propane, Igniting Gas Feeding System (IGFS), Analysers Cryogenic fluids system: Liquid hydrogen and Liquid oxygenThe assembly, integration and testing of the Ariane 6 launcher, both in the Assembly Building and on the launch pad, as well as its preparation and final chronology phases on the launch pad, require the following fluid systems: - Liquid Hydrogen, to load the LH2 tanks of the Lower and Upper Liquid Propulsion Modules on the launch pad. - Liquid Oxygen, to load the LO2 tanks on the launch pad. - Gaseous Hydrogen, to load the GO2 tank on the launch pad. - Gaseous Oxygen, to load the GH2 tank on the launch pad. - Gaseous Helium (600 bar), to prepare and pressurize for Lower Stage and Upper-Stage High Pressure helium vessels preparation and pressurization in Launch Pad. - Gaseous Helium (600 bar), to prepare and pressurize the high-pressure spheres. - Gaseous Helium (200 bar), for Lower and Upper Stage preparation. - Gaseous Nitrogen (250 bar), for Lower and Upper Stage preparation. - Compressed Air, for Lower Stage, Upper Stage and CS preparation. - Process water, for high-pressure injection to dampen the vibrations on the launch pad generated by the Ariane 6 launcher during engine ignition and take-off operations. - Propane System, for Lower Liquid Propulsion Modules. - Analyzer System to check fuel leaks during the chronology stage and to analyse purity of lines before preparation and take-off operations on the launch pad.
