Study on high altitude experimental of TTC air floating turbine cooler in Pod ECS
Adopting air floating bearing to upgrade the TTC(cooling Turbine to power Turbine to Compressor type)turbine cooler and optimizing the aerodynamic performance and start-up characteristics of the turbine cooler were introduced in this pa-per,turbine cooler can start up and operate when its income pressure achieves 8 kPa on ground.A high-altitude negative pres-sure simulation test was conducted on the environmental control system(ECS)based on the flight conditions of the electronic pod.Experimental results indicate that cooling power and air flow increase with flight Mach number,environmental control system with such turbine cooler has maximum cooling power when flight altitude increases,which is in alignment with traditional turbine cool-er with rolling bearing.The results show that the TTC turbine cooler equipped with air floating bearing can meet the requirements of airborne engineering applications.
AirborneEnvironmental control systemAir floatingTurbine coolerHigh-altitude test
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