better designs, faster.
Improve the thermal design of your
electronics systems with rapid, automated
maintenance, it can be a nightmare
for the thermal engineer. Not only
do electric aircraft have fewer places
to dump waste heat, but the subsystems that are converting from
hydraulics to electric power now are
generating electric waste heat that
wasn’t there before.
“Aircraft today are very electric,
and rely less and less on engine
power and more and more on secondarily generated power,” points
out Meggitt’s Janicki. “Active
cooling needs to dump
the heat into the fuel.
That’s fine until you
start running low on fuel.
Good thermal management is
very benign; nobody cares about it
until something breaks down. It can
ruin your whole mission.”
An aircraft fuel system also is
a viable option for dumping waste
heat, and this practice is com-
mon. Still, what happens when the
aircraft starts to run low on fuel?
Not only is the aircraft’s range
severely cut back, but its ability to
cool electronics also is diminished.
Could a tactical aircraft running low
on fuel also have to compromise the
capability or range of its sensors to
avoid overheating its electronics?
“It’s a very serious system prob-
lem,” says Michael Humphrey,
key account manager for
and global support
at the Parker Hanni-
fin Corp. Aerospace Group
in Alexandria, Va. “All systems
like this need to look hard at the
capacity of the system, and what if
you are putting a thermal on your
COTS high-performance embedded
computing systems typically use conduction
and convection cooling, but systems
designers must have places for the heat to go.