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Forum: Electrical: Batteries, Generators & Solar

22-02-2013, 11:42

Replies: 57

Efficient battery driven air condition for Lagoon 450 catamaran

Views: 18,902

Posted By sailorchic34

Re: Efficient battery driven air condition for Lagoon 450 catamaran

That's still a 230V system that inverts the A/C to DC to run a DC motor at variable speed. That AC to DC inverter will cost you about oh 3-6% in efficiency loss but makes up in part load...

Forum: Electrical: Batteries, Generators & Solar

22-02-2013, 09:40

Replies: 57

Efficient battery driven air condition for Lagoon 450 catamaran

Views: 18,902

Posted By sailorchic34

Re: Efficient battery driven air condition for Lagoon 450 catamaran

Well yes if nothing else were running then 1000 amp bank would give you 800 ish amps down to the OP 80% discharge. Probably a little less due to the high discharge rate. So you could get 3 hours if...

Forum: Electrical: Batteries, Generators & Solar

22-02-2013, 09:02

Replies: 57

Efficient battery driven air condition for Lagoon 450 catamaran

Views: 18,902

Posted By sailorchic34

Re: Efficient battery driven air condition for Lagoon 450 catamaran

Air conditioning is just an energy hog. Even a 24k BTU chiller system will run 200-275 amps per hour on a 12V system. This for the refrigerant compressor, two water pumps, (raw and chilled) and for...

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