Biopowered - vegetable oil and biodiesel forum
General => Wiki and forum discussion => Topic started by: Julian on March 04, 2013, 12:29:27 AM
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I've just found a page started by falcon over a year ago.
Ron, from the stats, it would seem you were on line yesterday. Looks like you were having trouble uploading photos and abandoned the page. It was a shame, because it looks like a good idea which could be of use to quite a few folks.
Anyhow, I've taken the liberty of uploading a couple of your photos and laid out the page here ... http://www.biopowered.co.uk/wiki/Viscosity_cup
Let me know if you think it's OK.
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I've just found a page started by falcon over a year ago.
Ron, from the stats, it would seem you were on line yesterday. Looks like you were having trouble uploading photos and abandoned the page. It was a shame, because it looks like a good idea which could be of use to quite a few folks.
Anyhow, I've taken the liberty of uploading a couple of your photos and laid out the page here ... http://www.biopowered.co.uk/wiki/Viscosity_cup
Let me know if you think it's OK.
That's a good idea, I shall be looking for a suitable ladle now.
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blending biodiesel with miss fuels will never be the same viscosity of 100% keresene would it?
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Can think of some useful applications for this: For example comparative viscosity tests with bio after different processes.
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Can think of some useful applications for this: For example comparative viscosity tests with bio after different processes.
It could also be used to monitor the effects temperature has on bio and veg in the winter,
after a while it should be possable to evaluate at what viscosity the filter will start to block.
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As this seems to be generally accepted as a good idea by many, would it make sense to try and establish a "standard hole" for a specific volume ladle?
That way, if we established a "standard" temperature, we could compare viscositys between members (within reason)
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Presumably shape also has an effect on the drain duration (wide and short vs thin and tall)?
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For accurate viscosity comparison, brewer to brewer, a standard cup will be needed.
Perhaps the top of the ubiquitous 2ltr pop bottle with a standard hole size in the cap.
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A standard container would be a good idea.
Don't those pop bottles deform too easly?
Using some type of packaging would mean it's widly available though.
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Presumably shape also has an effect on the drain duration (wide and short vs thin and tall)?
good piont also amount of oil needs to be the very same level in everybody cup aswell as being the very same cup as mentioned. i see this on a run of the mill 200 ltr drum, when full 200 ltr and you open the crud valve i can shoot a jet 2 foot in a downward arc, half full onlt achieves a 1 foot and so on... the downward force acting on the amount of volume makes a diff.
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It's the height of the head that makes the difference, 100L and 50L will produce the same pressure at the bottom for the same given head (no smutty remarks needed).
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8) lol hehe
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I have one from my spray kit i used it when testing the coldflows
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Keith, your avatar looks lie RM in a goldfish bowl.
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Just been looking at the winter addatives page and it's obvious KH used a viscosity cup for the tests.
What did you use Keith?
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Just been looking at the winter addatives page and it's obvious KH used a viscosity cup for the tests.
What did you use Keith?
You've answered your own question, a viscosity cup.
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Doh, silly me!
So they're all the same dimensions with the same size hole then?
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Doh, silly me!
So they're all the same dimensions with the same size hole then?
Dimensions are irrelevant, A viscosity cup is a viscosity cup innit.
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Thought we were trying to arrive at standard cup or container. If you are only making comparisons with the same cup, yes, I'd agree.
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For a standard cup how about a length of copper pipe with a drilled stop end?
Dick
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Nice and standard, but this is one for paint ...
(http://image.classictrucks.com/f/37211743/1205clt-05+12-spray-gun-tips+viscosity-cup.jpg)
I'd guess we need to be looking for a similar shape. I recon the cone is preferable to a flat bottom to ensure all the fluid gets drained. I think Jim was on the right track with a pop bottle.
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Nice and standard, but this is one for paint ...
(http://image.classictrucks.com/f/37211743/1205clt-05+12-spray-gun-tips+viscosity-cup.jpg)
I'd guess we need to be looking for a similar shape. I recon the cone is preferable to a flat bottom to ensure all the fluid gets drained. I think Jim was on the right track with a pop bottle.
Hear what you say but a 22mm stop end is no flatter than a pop bottle lid and can be domed out if wanted. The hole size, which I think is the most important for uniformity, will also be more accurate when drilled in copper than plastic.
Dick
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I feel like i might be missing somthing, but i think that the chance of making a 'standard' by drilling holes is, well, unlikley?
Isnt the key to just calibrate whatever container is made? Ie find the level that it needs to be filled to to empty in 25 seconds with a 25sec sample / temp?
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I feel like i might be missing somthing, but i think that the chance of making a 'standard' by drilling holes is, well, unlikley?
Isnt the key to just calibrate whatever container is made? Ie find the level that it needs to be filled to to empty in 25 seconds with a 25sec sample / temp?
I think a standard sized hole is the starting point, different sized holes will have different effects as the viscosity changes and while any hole can be calibrated to one viscosity, as you say, there is no guarantee that two with different sized holes will remain calibrated with different viscosities. With a standard hole the device can be tuned as you suggest.
Realistically I think it unlikely that we will be able to rely on data from different cups when the viscosities are close together.
Dick
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Nice and standard, but this is one for paint ...
(http://image.classictrucks.com/f/37211743/1205clt-05+12-spray-gun-tips+viscosity-cup.jpg)
I'd guess we need to be looking for a similar shape. I recon the cone is preferable to a flat bottom to ensure all the fluid gets drained. I think Jim was on the right track with a pop bottle.
I did reply on page 1, yes a cup very similar to that pictured from my spray set
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As i have already posted up findings with my cup would it make sense to base it around that one?
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Missed that, sorry ... so how big is your hole!
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Missed that, sorry ... so how big is your hole!
I will put a drill bit up it tomorrow!
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Missed that, sorry ... so how big is your hole!
I will put a drill bit up it tomorrow!
Don't forget to warm it up and mind your haemorrhoids when inserting.