Carbon Cycle Chemical Reactions Involved: Photosynthesis: Air and water molecules and the energy from the sun to produce a simple sugar such as glucose and oxygen molecules as a by product. During photosynthesis plants use carbon dioxide and produce oxygen.
Similar to shore power for ships, a ground power unit (GPU) may be used to supply electric power for an aircraft on the ground, to sustain interior lighting, ventilation and other requirements before starting of the main engines or the aircraft auxiliary power unit (APU).
Aircraft equipped with Single Battery. Primary electrical power is provided by two engine integrated drive generators. (IDGs) which supply three-phase, 115 volt, 400 cycle alternating current. Each. IDG supplies its own bus system in normal operation and can also supply essential.