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Messages - veggie

Pages: 1 [2] 3 4 ... 37
16
Waste Motor Oil / Re: filtration by "settling out"
« on: March 28, 2020, 02:31:29 PM »
WMO is a moving target. It's made up of all kinds of oils, additives, solvents and even anti-freeze.
The varying concentrations of these components means that every user will have a different base fuel to compare to others.
What works for one person may fail miserably for another even though the engines are prepared identically. Why, because the fuels are almost guaranteed to be different (even though they are both WMO).
If your oil is free from other contaminants and is non-synthetic, you may have good luck using it as a fuel if you clean it adequately.
Some people add 10% gasoline to reduce the viscosity.
Just for contrast, here are nominal flash points for various fuels and oils..

Flash Point Under Compression Ignition:
===============================
Diesel #1 ---100f
Diesel #2 ---125f
Kerosene ---150f
Biodiesel ---260f
Motor oil --- 450 f
Petroleum synthetics--- 485f
PAO Synthetics ---525f
Olafin Ester Synthetics ---725f

As you can see, the high end synthetics have a strong resistance to auto-ignition. (Diesel=100f vs. Olafin Synthetics=725f)
That's why synthetic oil works well in severe heat applications.
One can clearly see the massive difference in "burnability" (if that's a word ?) and how varying concentrations of these oils could drastically effect the combustion process.

17
Straight Vegetable Oil / Re: How long does WVO last ?
« on: March 28, 2020, 01:58:13 PM »

Good info Glort, thanks  ;)

18
Straight Vegetable Oil / How long does WVO last ?
« on: March 27, 2020, 10:46:45 PM »
I have some WVO stored in a tote for 4 years now.
I does not smell bad or "painty".
It's de-watered and filtered before being stored.
Stored outdoors in the shade and it freezes every winter.
But I fear that this stuff must have a shelf life?  ???

What's your experience with the life of WVO ?

19

Maybe dieselgman south west of you.
Gary had many original Listers and clones in inventory.
Although he is getting out of the business, he many have some to liquidate.

20
Listeroid Engines / Re: What are you guys using for fuel tanks?
« on: March 18, 2020, 06:20:47 PM »
I use an oil reservoir used on hydraulic systems. Available in many sizes.
They are available in many shops and have the fill/drain ports already in place.

>> click picture to enlarge <<

21
Changfa Engines / Re: AIr Cooled Chinese L186 Diesel Injector Pump R&R
« on: March 16, 2020, 10:09:11 PM »

I would suggest that the RA Lister company did extensive testing to find the optimal flywheel weight and diameter to balance the line between too much resistance to combustion acceleration vs. having enough inertia to carry good power through the next combustion cycle.

22

Would it make sense to use use variable resistors (dial pots)  for the upper/lower band setting?
That would allow the user to tune the system to the Array and Heating element.

23
Changfa Engines / Re: AIr Cooled Chinese L186 Diesel Injector Pump R&R
« on: March 15, 2020, 11:33:04 PM »

Good catch hwew. I personally have only seen numbers in the 18 - 20 range.
(Except for the advanced computer controlled variable timing automotive diesel engines. VW, BMW, Merc)
 

24
Changfa Engines / Re: AIr Cooled Chinese L186 Diesel Injector Pump R&R
« on: March 15, 2020, 02:51:42 PM »

So these engine are only running only 12 to 14 degrees advance according to that manual.
I would have thought they would run 18 to 20 like most diesels I am familiar with.
I suppose the short stroke has something to do with it.
It doesn't explain why they knock an hammer so much.

Glort, from your experience, where is a good zone to target in order to quiet them down?
Something like 9 to 11 degrees?

25
Changfa Engines / Re: AIr Cooled Chinese L186 Diesel Injector Pump R&R
« on: March 13, 2020, 11:06:13 PM »
Agreed, very simplistic

26
Hi Glort
How do you determine the best wattage rating for the heating element? Or does it not matter with your system?

27
Changfa Engines / AIr Cooled Chinese L186 Diesel Injector Pump R&R
« on: March 11, 2020, 08:04:21 PM »
Far anyone who is planning to replace an injector pump or modify the injection timing by adjusting the shim pack thickness you may find this helpful.

https://www.youtube.com/watch?v=a1ZrAAYGt40

28

Interesting experiment.
My understanding of what you are doing is limited.
Does your assembly do a better job of using power when the panels are not in the sweet spot?

29
This is my method of using PV to heat water.
It is a very small system with a 1500 watt, 120 volt AC element. Could be scaled up to a larger system I suppose.
Self modulating, and pushes power to the heating element only when the sun is shining and the grid tie inverter is making adequate power.
Arduino controller and AC wattage sensor from eBay.
It eliminates the need to control DC power with relays.

30
General Discussion / Re: It's miniaturisation gone mad!
« on: February 27, 2020, 09:43:01 PM »
Wondering ... could these be used as a PM generator ?
With the appropriate rectification of course.

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