Nitrogen filled coller

[nugent]

Just got access to a nitrogen generator,, is it worth me filling my new tubes,

I know lots of tyre depots give you the option now, less expanding in heat and slower loss due to bigger molecules,

Did a search and just found a good slanging match over it , has this moved on now, do people get benefits from it or not ?

Or will I die if I rip the side out of it on a mooring!

[HughN]

Originally Posted by nugent

Or will I die if I rip the side out of it on a mooring!

Nope. Air is 79% Nitrogen anyway.

[Pikey Dave]

Being as air is 79% nitrogen anyway I can't see much benefit in replacing the 21% O2 with N2. If it costs nowt, it won't do any harm & will be an interesting experiment. I've never had problems with the tubes going down, they hold air from year to year. If you were talking Helium, that would be different, H2 molecules are tiny & will actually pass through the tube material.

[chewy]

Stand by what I said before regards nitrogen and it collecting on deck.

[Pikey Dave]

Originally Posted by chewy

Stand by what I said before regards nitrogen and it collecting on deck.

I thought I had a Deja Vu moment

[chewy]

Yup lol

[GordyP]

Can I have the O2 that your not going to be using? That would be lovely.

[HughN]

Originally Posted by Pikey Dave

If you were talking Helium, that would be different, H2 molecules are tiny & will actually pass through the tube material.

Except Helium is He: Hydrogen exists as H2

[colcreate]

Originally Posted by nugent

Just got access to a nitrogen generator,, is it worth me filling my new tubes,

I know lots of tyre depots give you the option now, less expanding in heat and slower loss due to bigger molecules,

Did a search and just found a good slanging match over it , has this moved on now, do people get benefits from it or not ?

Or will I die if I rip the side out of it on a mooring!

They might get bent if you come up north to fast.......

[Bigmuz7]

Originally Posted by HughN

Except Helium is He: Hydrogen exists as H2

And you wouldnt want that in there ... might give you a better lift off the top of a wave mind you

[thomas]

ATS offered to fill my new tyres with nitrogen, they said they would maintain they're pressure, the bloke then said I could come in once a month to get them topped up for free, I said if they maintained pressure why would I need to, he looked stumped.

[Ginkgo]

Air has water vapour in it. This expands a lot with heat and contracts with cold. The Nitrogen will be dry and will maintin a more constant pressure regardless of the temperature.

[Pikey Dave]

Originally Posted by HughN

Except Helium is He: Hydrogen exists as H2

Aye my bad, typo

[Pikey Dave]

Originally Posted by Ginkgo

Air has water vapour in it. This expands a lot with heat and contracts with cold. The Nitrogen will be dry and will maintin a more constant pressure regardless of the temperature.

Air can be dried, diving air is VERY dry.

[GJ0KYZ]

Oh the huge manatee, the huge manatee...

[Wightdiver]

Originally Posted by Ginkgo

Air has water vapour in it. This expands a lot with heat and contracts with cold. The Nitrogen will be dry and will maintin a more constant pressure regardless of the temperature.

Are you sure about this? My understanding is that water volume is not significantly affected by temperature. If it was our central heating systems would explode, and kettles would overflow?

[Festinghouse]

jeeez... thats why there is a max fill mark on a kettle, and things such as 'expansion' (note that name) tanks on car coolant systems!

[Peter_C]

Air is 78% nitrogen, and O2 does cause degradation to many rubber and plastic items (Albeit mostly in higher concentrations of O2). If it is free, why not fill with nitrogen? If it requires doing any kind of extra work or driving, forget about it.

I have a 5,000 psi compressor that produces very dry air @32% O2, and the only time I would ever consider using it in my tubes, is in an emergency while out on the water. Otherwise I just use a hand pump.

[lakelandterrier]

Originally Posted by Ginkgo

Air has water vapour in it. .

yes but not a lot of it! Air is according to my 1980-something O level notes circa 79% nitrogen, 19% oxygen & bits of other stuff inc. some CO2. The other stuff in will depend on local conditions.

However if anything there must be more CO2 in the air now - as we now have global warming which we didn't back ten.

Then again I never was very good at science

Can't see it would make a significant difference, but I'm no scientist.

[thomas]

Here you go, study this...... Thermal expansion - Wikipedia, the free encyclopedia

All the info is there and makes a more interesting Saturday night than watching the X Factor.