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Messages - veggie

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1
+1 for what others have said.
-Running slower is not an issue provided there is sufficient load to generate heat.
 Mine runs at 475 rpm and warms up nicely due to the inline thermostat on the head discharge line.
-Some sort of temperature control to speed up the warming process is helpful (Thermostat).
 Large hoppers with thermosyphon and no thermostat can take ages to build up enough heat in the head to allow complete combustion.

veggie

2
Listeroid Engines / Re: Does water flow around 6/1 posts?
« on: October 08, 2020, 08:28:26 PM »

If I may digress away from the original topic for just a moment ....
BruceM, good to see you posting. I feared the worst.
Welcome back

cheers,
veggie

3
Everything else / Re: Coolant change
« on: September 20, 2020, 07:40:36 PM »


Spotless !
I bet the inside of your engine cooling passages are just as clean.
Nice work.

4
Everything else / Re: Coolant change
« on: September 19, 2020, 05:52:04 PM »

Facebook requires a LOGIN to view the pics   :-[


5
General Discussion / Re: Listeroids at work
« on: September 13, 2020, 01:44:36 AM »

Keep going old girl !!!!!

6
General Discussion / Re: Listeroids at work
« on: September 12, 2020, 04:54:26 PM »
Aaaaahhh ! Come on Mike !!!!

Lets get some pictures of the "Listeroid" at work.  :)
Video of it saving your asses is even better  ;D

That tittle tiny clump of green pixels way in the back corner of the shed ..... is that a listeroid?


But seriously .... Good luck man.

7
Listeroid Engines / Re: 6/1 silencing
« on: September 11, 2020, 04:48:51 PM »
Hi Veggie, please see the text below cut and pasted from the listeroid 6/1 installation manual:

EXHAUST SYSTEM: A standard engine is fitted with an exhaust silencer. If the exhaust piping be extended to
the out side of the building up to a length of 3 meters, the exhaust silencer can be fitted on the end of iron
pipe screw 1 1/2 BSP.
If exhaust system is longer, following pipe size is recommended.
Pipe line: Up to 3 meter 38.0mm (1 , 4) Bore
3 to 6 meter 50.8 mm (2) bore
6 to 10 meters 63.5 mm (2) bore over
10 meters 76.Omm (3) bore
However, keep the exhaust system is as short as possible with a minimum number of bends and must be erected in
easily detachable sections to facilitate cleaning during overhaul. Never embed in concrete. A faulty system
can seriously reduce the power of the engine.

Bob

That's interesting.
Both mikenash and your data do in fact state that the pipe diameter should increase as the run gets longer.
My thinking was that as the outdoor run gets longer the gas would get cooler and contract along the way which would negate the need for larger diameters. I currently use 2" pipe.

I am leaning towards the Garbage Can method suggested by ajaffa1.
Here's an example from our member rbodell... and his is only half buried.
https://www.youtube.com/watch?v=v1ZJ8e3ihZg

... I am also considering this one. It's interesting if you look at what happens when he added the top 2 tires.
They start bouncing slightly. Absorbing the exhaust pulse and taking away the energy.
https://www.youtube.com/watch?v=XZBL5R47E84


8
Listeroid Engines / Re: 6/1 silencing
« on: September 04, 2020, 03:38:24 PM »
Report

Ok ... I tried a third muffler but it hardly made any difference.
The whoosh ... whoosh ... whoosh noise is still prevelent due to the restriction in the mufflers and I don't think the added back pressure is good for the system.

The next thing I am trying is a large pressure dissipation chamber much like some others have done underground but mine will be above ground.
The plan is to use a steel garbage can lined with Roxul fireproof sound insulation. This will allow the exhaust pulse cool to dissipate before leaving the can with much less force.

Design issue !
The muffler is outdoor.
One concern I have is condensation and freezing. Here in the frozen north it is very likely that the engine will be running when the outside temperatures are -15C.
Does anyone know a 'rule of thumb' for how much exhaust water is generated per liter of fuel?
I can put a layer of sand/gravel in the bottom of the chamber and drill drain holes.

cheers
veggie



9
Listeroid Engines / Re: 6/1 silencing
« on: September 02, 2020, 05:52:49 PM »
Another way of reducing gas speed and increasing sound suppression would be to split the pipe and run another one with the mufflers in parallel rather than in series.  If practical, you could cut the pipe you have in half, put in a Y section with a Muffler on each end.

That's a good idea.!
I will look into doing that.

The system is very quite as-is, but neighbors and wife can still here a puff...puff...puff.
I don't mind it of course, but non-lister humans don't necessarily like it.

Digging a hole in my back garden is not an option at this time.

10
Listeroid Engines / 6/1 silencing
« on: September 01, 2020, 03:37:35 AM »
Thoughts ?
I currently have 2 large automotive mufflers in a long 25 ft exhaust system on my Roid. (20 ft of that is outdoors)
The pipe is 2" diameter all the way.
It discharges into my back yard area. Almost silent but not to my satisfaction.
I am considering adding a 3rd large muffler at the end of the run.
Would this be too much back pressure for a Lister type?

cheers

11
Red Stone Engines / Re: Blast from the past
« on: August 25, 2020, 01:01:06 AM »
Those Redstone's are a real beast of an engine.
Could probably run 24/7 for a year or two as long as the oil was changed regularly.
How the heck did you lift it into the back of a van ?  ;D

12
Everything else / Re: Blasphemy..... Solar power.
« on: August 19, 2020, 03:21:14 PM »

Hmmmm.... anyone in your family interested in growing lots of food on a steady basis?

Solar power like you have could run EVERYTHING in a solar powered hydroponics greenhouse.
No soil, no weeds, no tilling.
It could power the pumps, LED lights (during shorter winter days), chillers, fans,  etc....

13
Everything else / Re: Blasphemy..... Solar power.
« on: August 19, 2020, 03:26:56 AM »


Set up a hydrolysis plant and make hydrogen from water !
The energy is now free.

14
mikenash,

Most of the Leese alterators produce 90% of their output at 3000 rpm.
Between 3000 and 6000 there is not much increase.
Their output curve is quite flat past 3000.
If you are driving them at 3000 rpm or greater you will be getting near full output.

Assuming 100 amp alternators at 12 volts X 2 alternators = 2400 watts
Assuming 50% efficiency (The 2x rule of thumb) you will need 4800 watts (4.8kw) or 6.4 HP of engine power
That's full load for your engine.




15


Glort, thanks !

Oh, and they are DIN rail mount too! Excellent

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