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 > Lightweight Generator From Israel

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time2roll

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Posted: 06/11/20 09:16pm Link  |  Quote  |  Print  |  Notify Moderator

EVs run on 400 to 800 volt batteries. Solar generating systems are being built well over 100 MW and the newest providing power at under 2 cents per kWh.

Actually I can't imagine a 22 lb generator will satisfy a remote village (as said in the link) for very long. Still need to truck in fuel at still more cost.

Otherwise for RV use let us know when Amazon has some to ship.


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Ed_Gee

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Posted: 06/11/20 09:35pm Link  |  Quote  |  Print  |  Notify Moderator

time2roll wrote:

EVs run on 400 to 800 volt batteries. Solar generating systems are being built well over 100 MW and the newest providing power at under 2 cents per kWh.

Actually I can't imagine a 22 lb generator will satisfy a remote village (as said in the link) for very long. Still need to truck in fuel at still more cost.

Otherwise for RV use let us know when Amazon has some to ship.


1) the comparison to solar was with regard to powering a vehicle.... not a village. You can't fit a 100kW solar system on a car!

2) where do you get "22 pounds" ?? The 16kW generator engine weighs 120kG !

And further, a 16kW very fuel efficient generator will go far to help a simple village off the grid..... even if they have to truck in a few hundred gallons of fuel every month or so.


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patperry2766

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Posted: 06/11/20 10:19pm Link  |  Quote  |  Print  |  Notify Moderator

Ed_Gee wrote:

time2roll wrote:

EVs run on 400 to 800 volt batteries. Solar generating systems are being built well over 100 MW and the newest providing power at under 2 cents per kWh.

Actually I can't imagine a 22 lb generator will satisfy a remote village (as said in the link) for very long. Still need to truck in fuel at still more cost.

Otherwise for RV use let us know when Amazon has some to ship.


1) the comparison to solar was with regard to powering a vehicle.... not a village. You can't fit a 100kW solar system on a car!

2) where do you get "22 pounds" ?? The 16kW generator engine weighs 120kG !

And further, a 16kW very fuel efficient generator will go far to help a simple village off the grid..... even if they have to truck in a few hundred gallons of fuel every month or so.


The article DOES say 22 lbs in the 2nd paragraph. It does say later in the article that then engine for the generator is 100 kG.


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Posted: 06/12/20 03:34am Link  |  Quote  |  Print  |  Notify Moderator

Here's a couple of YouTube videos showing the concept for "free piston engine linear generator":

https://www.youtube.com/watch?v=QUbBqSu9Hdc

https://www.youtube.com/watch?v=u4b0_6byuFU


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bucky

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Posted: 06/12/20 04:50am Link  |  Quote  |  Print  |  Notify Moderator

Seattle Steve wrote:

The biggest problem with a generator from Israel is that after 8 days you have to cut the plug off.


I just spit coffee thru my nose.


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naturist

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Posted: 06/12/20 11:32am Link  |  Quote  |  Print  |  Notify Moderator

never mind





time2roll

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Posted: 06/12/20 02:35pm Link  |  Quote  |  Print  |  Notify Moderator

Ed_Gee wrote:

1) the comparison to solar was with regard to powering a vehicle.... not a village. You can't fit a 100kW solar system on a car!

2) where do you get "22 pounds" ?? The 16kW generator engine weighs 120kG !

And further, a 16kW very fuel efficient generator will go far to help a simple village off the grid..... even if they have to truck in a few hundred gallons of fuel every month or so.
Did you even read the link?

STBRetired

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Posted: 06/12/20 03:32pm Link  |  Quote  |  Print  |  Notify Moderator

Noticed how much the 2 cylinder motor was shaking the test fixture. The 4 cylinder version looked much less vibration prone, but there would need to be some kind of mechanical linkage between the 2 banks to keep them synchronized.

Interesting concept.


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profdant139

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Posted: 06/12/20 05:46pm Link  |  Quote  |  Print  |  Notify Moderator

Here is a short video made by the manufacturer:

Product Overview

And here is their video focusing on the technology:

Short tech video

I tried to find out if these things are for sale yet but came up empty.

At 220 pounds, they could be decent built-in generators for larger RVs -- but sixteen KW is more than enough!

I wish they would make a three thousand watt mini version!!


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jodeb720

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Posted: 06/13/20 08:51am Link  |  Quote  |  Print  |  Notify Moderator

For those of us who have been looking for power generation without much noise, this is very similar to a linear Generator that NASA has developed for power on remote bodies (E.g. Moon/Mars).

They have coupled the power production to a Stirling Engine cycle. Heat is derived from decaying plutonium (which, if memory serves, about 700F degrees.

I went down this path trying to use the water heater on propane to drive the Stirling cycle, and use the water heater tank as a heat sink - as well as to heat the RV.

I eventually gave up because the BTU to watts conversion was too poor compared to a standard generator. Also the prototype was noisy - as noisy as a inverter generator.

It was an interesting exercise though and I learned a lot in terms of mechanical engineering and thermodynamics.

if you Google NASA Linear alternator or NASA Stirling power you'll find the link to the NASA site where they discuss at great lengths power production on remote bodies. None of the linear generators need oil - they use a spring and diaphragm design on linear bearings.

josh

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