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Post by Deleted on Apr 26, 2020 20:26:52 GMT
Thanks, I'm toying with the idea of rebuilding some type of Lister for fun(?) and getting the most in the way of charging ability out if it (so it actually has a potential function).
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Post by Deleted on Apr 26, 2020 20:33:41 GMT
Not sure which one you have but I had a Lister LR1 ex cement mixer which was limited to 1.5hp. never investigated if it could do more. They are usually about 4.5hp I think.
To extract good amounts DC power I think you will need a ramp-up regulator system of some sort.
I was advised on an American forum that one can use a sliding rheostat for this but I never investigated it further.
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Post by Telemachus on Apr 26, 2020 20:34:44 GMT
Thanks, I'm toying with the idea of rebuilding some type of Lister for fun(?) and getting the most in the way of charging ability out if it (so it actually has a potential function). Depends on the lister, but some have the alternator pulley on the camshaft, which is of course 1/2 crankshaft rotational speed. So off to a bad start! You can improve the pulley ratio either by increasing the engine pulley diameter or reducing the alternator pulley diameter. Trouble is, if you do the latter you end up with a tiny pulley that strains the belt and anyway, there is insufficient length of belt in contact with the pulley to transfer the load. The only viable solution is to increase the engine pulley diameter.
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Post by Deleted on Apr 26, 2020 20:50:41 GMT
Thanks, I'm toying with the idea of rebuilding some type of Lister for fun(?) and getting the most in the way of charging ability out if it (so it actually has a potential function). Depends on the lister, but some have the alternator pulley on the camshaft, which is of course 1/2 crankshaft rotational speed. So off to a bad start! You can improve the pulley ratio either by increasing the engine pulley diameter or reducing the alternator pulley diameter. Trouble is, if you do the latter you end up with a tiny pulley that strains the belt and anyway, there is insufficient length of belt in contact with the pulley to transfer the load. The only viable solution is to increase the engine pulley diameter.
How about this?  |
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Post by Deleted on Apr 26, 2020 20:52:43 GMT
A noisy anchor. Quite tidy though, big pulley for something maybe that's to account for the Telemachus half speed output! |
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Post by Telemachus on Apr 26, 2020 20:54:22 GMT
Depends on the lister, but some have the alternator pulley on the camshaft, which is of course 1/2 crankshaft rotational speed. So off to a bad start! You can improve the pulley ratio either by increasing the engine pulley diameter or reducing the alternator pulley diameter. Trouble is, if you do the latter you end up with a tiny pulley that strains the belt and anyway, there is insufficient length of belt in contact with the pulley to transfer the load. The only viable solution is to increase the engine pulley diameter.
How about this? Yea pretty sure the air cooled listers have the pulley on the camshaft and that pic looks like the pulley shaft isn't on the crankshaft. |
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Post by Deleted on Apr 26, 2020 21:31:17 GMT
How about this? Yea pretty sure the air cooled listers have the pulley on the camshaft and that pic looks like the pulley shaft isn't on the crankshaft. Well as I recall from my SR2-powered boat, that's the shaft that the hand-crank handle went onto. Not that it confirms whether or not its the crankshaft of course...and yes Andrew, the SR2 is a noisy thing. Although most of the row is about exhaust, so with a probably non-cheap muffler things could be calmed down a bit. It was just the size of the pulley for illustrative purposes...I believe that's the only possible location for any such thing though. I was imagining something with less bulk hence the LR1 notion. What a pity D-series engines run on petrol! |
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Post by Deleted on Apr 27, 2020 4:06:47 GMT
I had an SR2 in my first narrow boat. Did many hours of cruising in that boat. It was noisy.
I'm not sure an exhaust muffler would make a great deal of difference overall to the clattering which is part of running an air cooled unit.
The D series are lovely little engines. Always fancied running one of those as a charging set. But not a diesel.
Another interesting option for a small charging set is to make use of the engine from a traffic light generator. Usually they seem to be little air/oil cooled Kubota OC series diesels.
If done right these can be quietened down by using some sort of intercooler system to cool the cooling air using water. Allowing the unit to be encased in a box of some sort. This is what Mastervolt did with the old Whisper 3500 diesel generator.
A bit technical but results in a nice compact package.
The MASE IS2.5 is another example which uses a Yanmar L48 and a air/water heat exchanger thereby allowing it to be encased and sea/river water cooled.
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Post by Deleted on Apr 27, 2020 5:03:46 GMT
Its funny you should say that, there is a fair selection of small Kubota units around right now. Maybe there often is. It makes more sense, parts would be a damn sight easier to come by! BTW, the base idea was to come up with a genset that could be bolted down in a narrowboat-sized engine space. I hadn't considered water-cooled items but if it could be integrated into the existing cooling furniture that would be very good, perhaps even tying it in to the calorifier circuit if your boat had one.
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Post by Deleted on Apr 27, 2020 5:27:38 GMT
I reckon the ideal solution would be to run a diesel generator and route the cooling circuit through radiators and calorifier.
This could be the winter power supply with the summer coming from the solar.
One of my weaknesses is execution of plans so I would probably never do this but it does seem to be a very nice option.
Not sure how easy it would be to get the coolant flow correct but suspect it would be manageable. Just have a shutdown circuit to protect from overheating, like small diesel generators have.
ETA obviously the normally water cooled exhaust would need to be routed through a silencer and out the side or through top of cabin with a lagged flexible pipe of some sort but that's doable.
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Post by Deleted on Apr 27, 2020 6:01:40 GMT
If it was quiet enough (rubber mounts?) it could be the perfect summertime solution to lots of hot water...
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Post by kris on Apr 27, 2020 7:45:24 GMT
I reckon the ideal solution would be to run a diesel generator and route the cooling circuit through radiators and calorifier. This could be the winter power supply with the summer coming from the solar. One of my weaknesses is execution of plans so I would probably never do this but it does seem to be a very nice option. Not sure how easy it would be to get the coolant flow correct but suspect it would be manageable. Just have a shutdown circuit to protect from overheating, like small diesel generators have. ETA obviously the normally water cooled exhaust would need to be routed through a silencer and out the side or through top of cabin with a lagged flexible pipe of some sort but that's doable. This is what id like to do with my inbuilt diesel generator, but I’ve not got round to it yet. I used to have a lister LR1 spinning a 55amp alternator it was a great thing. I used it for four winters to generate my electricity. It was the cheapest generator to run I’ve ever had. I shouldn’t have sold it really but I needed the space. |
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Post by Deleted on Apr 27, 2020 15:54:34 GMT
A working DC charging set is something to keep I reckon.
I've got a non working HFL DC traveler genny. Kubota EB200 engine horizontal single and a big double belted alternator plus the automatic ramp-up regulator for it. I have had it running a few years ago. Second hand purchase it was running perfect about 4 years ago then I left it.
Proper bit of gear but I can't get it to deliver fuel through the HP pump.
I guess it could be stuck.
Might be a strip down job.
The Lister is a more sensible unit in the sense that it won't stop working before the world runs out of diesel.
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Post by peterboat on Apr 27, 2020 17:34:53 GMT
A working DC charging set is something to keep I reckon. I've got a non working HFL DC traveler genny. Kubota EB200 engine horizontal single and a big double belted alternator plus the automatic ramp-up regulator for it. I have had it running a few years ago. Second hand purchase it was running perfect about 4 years ago then I left it. Proper bit of gear but I can't get it to deliver fuel through the HP pump. I guess it could be stuck. Might be a strip down job. The Lister is a more sensible unit in the sense that it won't stop working before the world runs out of diesel. There will always be cooking oil for the lister, My whispergen doesnt like full biodiesel it clogs up the evaporator, I have filled the tank with kero so that has helped the problem |
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Post by JohnV on Apr 27, 2020 18:23:50 GMT
A working DC charging set is something to keep I reckon. I've got a non working HFL DC traveler genny. Kubota EB200 engine horizontal single and a big double belted alternator plus the automatic ramp-up regulator for it. I have had it running a few years ago. Second hand purchase it was running perfect about 4 years ago then I left it. Proper bit of gear but I can't get it to deliver fuel through the HP pump. I guess it could be stuck. Might be a strip down job. The Lister is a more sensible unit in the sense that it won't stop working before the world runs out of diesel. There will always be cooking oil for the lister, Shhhhhhh !!! don't tell everyone  |
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