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Author Topic: Generator to motor  (Read 21120 times)

rcavictim

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Re: Generator to motor
« Reply #30 on: August 27, 2007, 02:22:22 PM »
With all due respect dskira I think you are looking to wear the wrong clothes to this party.  Seeing as you are not starting out with very much power efficiency is important!  Also consider that a water environment and electricity has it`s own set of health hazards.  Would you not consider the sheer symplicity and light weight of a space saving hydraulic drive system?  Tiny hydraulic pump on the listeroid, control valving and lever wherever yoiu want, tiny hydraulic motor on the propeller, hydraulic reservoir tank somewhere else and BTW it could be a source of some emergency fuel for the listeroid someday if you ever ran out of fuel and became stranded at sea!
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Andre Blanchard

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Re: Generator to motor
« Reply #31 on: August 27, 2007, 04:07:31 PM »
I think if I were going to do a hydraulic drive system on a boat the hydraulic fluid at the top of the list would be water.
Every hydraulic system I have seen has had some small leaks, at quick couplers, filters changes, etc. and if a hose blows you can pump out a lot of oil in a real short time.  Makes a mess in the boat and some of it is going to end up in the water the boat is floating in.

In a small boat I would likely just use a normal water pump on the engine or maybe two pumps so you can select high volume low pressure or high pressure low volume.  Then just put a water turbine on the prop shaft, a second one for reverse, then select different combinations of pumps and nozzles for different speed ratios.
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rcavictim

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Re: Generator to motor
« Reply #32 on: August 27, 2007, 10:27:03 PM »
Well let`s not dismiss magnetohydrodynamic drive either!   :D

As far as jet drive you have enough power there to easily power several dental water picks.
-DIY 1.5L NA VW diesel genset - 9 kW 3-phase. Co-gen, dual  fuel
- 1966, Petter PJ-1, 5 kW air cooled diesel standby lighting plant
-DIY JD175A, minimum fuel research genset.
-Changfa 1115
-6 HP Launtop air cooled diesel
-Want Lister 6/1
-Large DIY VAWT nearing completion

dskira

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Re: Generator to motor
« Reply #33 on: August 28, 2007, 03:10:40 AM »
I agree with you Rcavictim, but I didnd't find a professinal of hydraulic which is not against the hydraulic propulsion, and I don't know why! and hydraulic is not generating the electrical power for the "hotel" consumption. "hotel" means all the isde and outside lamps, fridges and so on.

Doug

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Re: Generator to motor
« Reply #34 on: August 28, 2007, 03:24:25 AM »
That Brings up another option.

Hydraulic pump and motor......

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rcavictim

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Re: Generator to motor
« Reply #35 on: August 28, 2007, 03:51:46 AM »
That Brings up another option.

Hydraulic pump and motor......



Doug,

Yer not paying attention.  Now WHAT did I JUST say?   ::)

See top post this page.   :D
« Last Edit: August 28, 2007, 03:53:19 AM by rcavictim »
-DIY 1.5L NA VW diesel genset - 9 kW 3-phase. Co-gen, dual  fuel
- 1966, Petter PJ-1, 5 kW air cooled diesel standby lighting plant
-DIY JD175A, minimum fuel research genset.
-Changfa 1115
-6 HP Launtop air cooled diesel
-Want Lister 6/1
-Large DIY VAWT nearing completion

Doug

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Re: Generator to motor
« Reply #36 on: August 28, 2007, 04:01:38 AM »
You know I just had a thought.....

What if you took a hydraulic pump and a motor off something and used that?????? ::)

Hmm time for the sober second thought button eh?

Doug
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rcavictim

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Re: Generator to motor
« Reply #37 on: August 28, 2007, 04:31:23 AM »
Well I suppose you could run the listeroid to pump coolant for the control panel gauges of a small nuclear plant.  This fellow made some comment about electricity for the hotel, so I think maybe he is building a large dock with a propeller on it.
-DIY 1.5L NA VW diesel genset - 9 kW 3-phase. Co-gen, dual  fuel
- 1966, Petter PJ-1, 5 kW air cooled diesel standby lighting plant
-DIY JD175A, minimum fuel research genset.
-Changfa 1115
-6 HP Launtop air cooled diesel
-Want Lister 6/1
-Large DIY VAWT nearing completion

dskira

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Re: Generator to motor
« Reply #38 on: August 28, 2007, 02:30:20 PM »
"hotel" means all the isde and outside lamps, fridges and so on.

mike90045

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Re: Generator to motor
« Reply #39 on: August 28, 2007, 08:24:10 PM »
Quote
  "hotel" means all the isde and outside lamps, fridges and so on.   

Uhhh,  how big is this lister ?   motive power  AND lights, fridges & whatnot.   Nav radio, running lights? life vests anybody?

dskira

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Re: Generator to motor
« Reply #40 on: September 04, 2007, 01:38:21 AM »
Yes the power necessary start to be slightly higher than anticipated. I thought the 20hp Listeroid two cylinder will fit the bill. The power beside the motor, is quite intermitant, the lights obviously part of the night, and that its not much consumption , the nav station run in 12DC volt, and the fridge, which is a isolated box with cool plates doesn't ask for much energy. The hot water and the heating system will come from a diesel stove with a gravity system. No power necessary there.
But it still a work in progress, and having everything from the same main power source will be really nice.