UK Karting - Notice Board (General Karting) : Re: Mr Funnel

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Re: Mr Funnel
Posted by 'JonWright' on 15 Jun 2010 @ 10:33

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JonWrightJoined: February 2009
Total Posts: 2
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Its about a hundred years since my chemistry O level... here goes!
I expect it works on a couple of principles based around the different properties of the filtrants -
1. the imiscibility of a polar covalent solvent (water) and a non-polar hydrophobic covalent solvent (aliphatic hydrocarbons in this case) so buzzin is right up to a point - the first principle is to allow the water to drop out to the bottom as it has a higher SG.
2. Low ability of a pure covalent solvent to form a stable suspension with insoluble (principally ionic) matter - grit and crud drops to the bottom and is too massive to pass through the filter anyway
3. The weak inter-molecular bonds (hydrogen bonding) that give water its unique properties to hold it together more strongly than its molecular structure indicates - and gives rise to-
4. The very different surface tension of water and hydrocarbons - Water is much higher
I would guess that a filter like this can only work if there is a great degree of insolubility between the two elements - so if you put in a load of a surfactant and form micelles, or an alcohol, which water and fuel are miscible with, the water properties are changed enough so it would go through the filter with the fuel.

Message Thread:

Mr Funnel by 'PaulGibson' (14 Jun 2010 @ 11:57)

Re: Mr Funnel by 'davidmc' (14 Jun 2010 @ 12:42)

Re: Mr Funnel by 'JonWright' (14 Jun 2010 @ 14:34)

Re: Mr Funnel by 'bigp' (14 Jun 2010 @ 16:47)

Re: Mr Funnel by 'richydehav' (14 Jun 2010 @ 16:57)

Re: Mr Funnel by 'JonWright' (14 Jun 2010 @ 21:45)

Re: Mr Funnel by 'buzzinrussell' (14 Jun 2010 @ 22:56)

Re: Mr Funnel by 'Danlee' (14 Jun 2010 @ 23:40)

Re: Mr Funnel by 'buzzinrussell' (15 Jun 2010 @ 0:25)

Re: Mr Funnel by 'Danlee' (15 Jun 2010 @ 8:09)

Re: Mr Funnel by 'JonWright' << You are here!

Re: Mr Funnel by 'PaulGibson' (15 Jun 2010 @ 11:48)

Re: Mr Funnel by 'Danlee' (15 Jun 2010 @ 12:28)

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