yes, you have understood what i am looking for.... a diesel turning an ME0913 so that the power produced can then be utilized to charge a battery bank/house load OR be sent directly to another ME0913 which is the propulsion motor.... in effect you would have a 48v buss that everything attaches to one way or another.... i can build my own controller to integrate everything
i understand what you are saying about increased efficiency if one goes from the diesel directly to the prop via a clutch or whatever but i believe it will be a very rare indeed WHENEVER i use the diesel at all.... the diesel is basically a standby emergency system for when the batteries run out OR some extraordinary circumstance like dead calm or fighting a storm or tide occurs..... only the tide is completely predictable so i would avoid this of course but IF the need for enhanced power arose then with a bit of planning ahead it would be possible to draw energy from both the batteries and the diesel in order to give just a slight extra punch for a brief period of time.... because use of the engine at all would be really rare i'd just as soon not have it connected directly, via clutch, transmission or in any way at all to the prop... engine alignment in terms of the diesel becomes meaningless which is nice and proximity of diesel to the prop is freed up
mainly regeneration would be done in order of preference by sailing, wind/solar, shore power and then the diesel
From: Mike Gunning <mike@electricyachtssocal.com>
To: electricboats@yahoogroups.com
Sent: Thursday, September 20, 2012 1:16 PM
Subject: [Electric Boats] Re: ME0913 as generator?
Michael,
If I understand what you are asking for is to put 2 ME9013 into the system. In that case you are looking for is a classic serial hybrid system using an installed diesel converted to a dedicated generator with power going into a battery bank. The second ME9013 serial electric propulsion motor will then drive the shaft and prop. I am still not clear but do you also what the generator to directly drive the propulsion system without going into the battery bank? Do you want a propulsion battery bank?
Not so sure how you would manage the later system. It also seems that you are duplicating the most reliable part of the system and still have a single point of failure with the diesel and would still always have the diesel on while pushing the boat.
Our system allows the diesel to (1) drive the boat, (2) drive the generator only(with clutch) power into the battery bank or (3) do both. The single ME9013 as a motor will only pull power out of the batteries.
Mike
Electric Yachts of Southern California
--- In electricboats@yahoogroups.com, Michael Mccomb <mccomb.michael@...> wrote:
>
> additional explanation....
>
> not so interested in a pass through type situation where the diesel recharges the batteries as a by product of boat propulsion with a clutch or some such device directly connecting the diesel to the drive shaft but rather i'd like to have a completely separate system where the diesel ONLY turns an ME0913 to generate power which may in turn be used to power house load, recharge batteries or directly power the propulsion ME0913.....  I realize that there is an efficiency loss by going diesel to gen to electric motor but i am willing to  live with that
>
>
> ________________________________
> From: Michael Mccomb <mccomb.michael@...>
> To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
> Sent: Wednesday, September 19, 2012 8:34 PM
> Subject: [Electric Boats] ME0913 as generator?
>
>
> Â
> could someone please speak to the thought of utilizing an ME0913 attached to an engine as a  generator....  these are fairly inexpensive yet powerful engines and doing so would allow a single motor to serve as a spare for both the electric propulsion system and the genset which charges the batteries
>
If I understand what you are asking for is to put 2 ME9013 into the system. In that case you are looking for is a classic serial hybrid system using an installed diesel converted to a dedicated generator with power going into a battery bank. The second ME9013 serial electric propulsion motor will then drive the shaft and prop. I am still not clear but do you also what the generator to directly drive the propulsion system without going into the battery bank? Do you want a propulsion battery bank?
Not so sure how you would manage the later system. It also seems that you are duplicating the most reliable part of the system and still have a single point of failure with the diesel and would still always have the diesel on while pushing the boat.
Our system allows the diesel to (1) drive the boat, (2) drive the generator only(with clutch) power into the battery bank or (3) do both. The single ME9013 as a motor will only pull power out of the batteries.
Mike
Electric Yachts of Southern California
--- In electricboats@yahoogroups.com, Michael Mccomb <mccomb.michael@...> wrote:
>
> additional explanation....
>
> not so interested in a pass through type situation where the diesel recharges the batteries as a by product of boat propulsion with a clutch or some such device directly connecting the diesel to the drive shaft but rather i'd like to have a completely separate system where the diesel ONLY turns an ME0913 to generate power which may in turn be used to power house load, recharge batteries or directly power the propulsion ME0913.....  I realize that there is an efficiency loss by going diesel to gen to electric motor but i am willing to  live with that
>
>
> ________________________________
> From: Michael Mccomb <mccomb.michael@...>
> To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
> Sent: Wednesday, September 19, 2012 8:34 PM
> Subject: [Electric Boats] ME0913 as generator?
>
>
> Â
> could someone please speak to the thought of utilizing an ME0913 attached to an engine as a  generator....  these are fairly inexpensive yet powerful engines and doing so would allow a single motor to serve as a spare for both the electric propulsion system and the genset which charges the batteries
>
__._,_.___
.
__,_._,___
No comments:
Post a Comment