how much HP does an automotive A/C system use ? 2 maybe 3 HP ?
your engine just idling is producing way more than that
its not about engine HP
its all about pulley ratio and 'alternator RPMs'
the 'current design' alternators in production need more RPMS to produce max output
but it doesn't have to be that way
ken white wrote:
MrWizard wrote:
Mexi
is entirely right
you have a 300~500 HP combustion engine sitting there
if the pulley diameter and electrical characteristics are correctly designed you can get mucho amps at idle
just remember a 6.5 HP engine can create almost 4KW of power when used in a genset
1 HP = 700+ watts
you only need to use about 7HP (or less) from that BIG engine to produce 4KW of power
Yep, 1 HP is equal to about 746 Watts...
Unfortunately the high HP numbers are developed at higher RPM's and not at idle.
