Re: A great homebrew generator plan

Posted by T_Bone on December 07, 2004 at 05:45:09 from (4.240.39.6):

In Reply to: A great homebrew generator plan posted by Jake In Colorado on December 06, 2004 at 19:05:54:

Hi Jake,

"One day in math class"

Well then here's some numbers to work with;

1hp = 746w

A alternator has pumping losses so figure 85% efficiency. Makes maximum wattage at 2000rpm for automobil types. A typical alternator output is
rated at 13.6v@130amps.

A voltage regualtor for deep cycle battery's is 95% efficient.

V-belts are 93% efficient

Invertors are typicaly 90% efficient.

Maximum battery drain is 75% of max rated amperage for a lead acid deep cycle battery's. Absolute discharge is 50%. Typical T-105 6v golf cart battery's are 105amp/hr rated at 20a/hr discharge rate.

From the above numbers, Now tell me how many watts your invertor will output and for how long ?

T_Bone

Follow Ups:

• Re: A great homebrew generator plan MIke (WA) 18:22:14 12/07/04 (0)

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