I.R.I.S. QP-1800 - Manual (Page 22)

QuietPower 1800 Inverter Owner’s Manual Rev 15 OCT 01 Page 22
Energy Flow
The only energy source put into
your military vehicle enters in the
form of diesel fuel
1) Some of this energy is
converted by the engine to
mechanical energy for motion
2) Some of this mechanical
energy is converted by the
alternator to electrical energy
3) A fraction of this electrical
energy is stored in the batteries for
future use (such as starting)
4) Some of this energy
can be converted by the
QuietPower from 24
VDC to 115 VAC
(with ~ 90% efficiency)
Energy Storage
1) When the vehicle is running, the
alternator provides most of the
current demanded by the
connected electrical systems
2) The excess current flows into the
storage batteries to:
•a) deliver electrical power when the
vehicle is not running
•b) supply surge currents exceeding the
nominal output of the alternator