Bombardier Successfully Tests Non-temperature-restricted APU
Bombardier Aerospace recently completed a non-temperature-restricted bleedless auxiliary power unit starting test, following a 10-hour cold soak at -40 degrees F and using a starter/generation system and lithium-ion battery system. The Safran Microturbo e-APU system included a starter generator and power electronics from Thales and a Saft Li-ion battery system. The prototype equipment was designed for business jets, Bombardier said. The tests were conducted at the Safran Turbomeca cold-chamber facility in Pau, France. Key benefits include reduced fuel burn and emissions, lower weight, longer APU life and unrestricted operation at extremely low temperatures.