When you talk about business,i believe you need to do a SWOT analysis,to see if its viable. Are kenyans ready to leave free air and come and buy your nitrogen for their tires. Even the president's cars are inflated with air not Nitrogen

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@ pm,

the advantages are many but the real reason why nitrogen gas is still not available in our filling stations is the cost factor.....the cost of its manufacture and packaging is astronomical by the standards of an ordinary kenyan...and air is free...


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Personally i'll need more convincing to use the Nitrogen because i think i'm ok checking my tires fortnightly and filling up with the free air. Nevertheless i dont dispute that Nitrogen might be superior.

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@Djinn,first,a bit of correction from my previous post - air consists of - about 1% of water in form of vapor plus other gases, about 21% oxygen which escapes about 4 times more than nitrogen,and 78% nitrogen which is non-flamable and dry ...

That said,nitrogen filled tyres are most suitable for tropical climates because it does not make tyres expand due to varying temparatures,nitrogen is a poor heat conductor,safety is another added plus for nitrogen inflated tyres due to stable tyres and less prone to expansion & therefore blown tyres ... nasgar,airlines,military (us and others) use nitrogen in tyres ... tires will run cooler and at a more consistent pressure than if they were filled with air.

I have a few problems with this:

First it sounds like a 'Mouse-Milk' kind of product. They say that mouse milk is very similar to human mother's milk. Thus if the mother of a child dies,you can feed the infant on mouse milk and s/he will grow normally. The only problem is that it is very difficult to catch one mouse...and you need thousands to feed a human baby....and also you need to make sure that your 1,000 mice are all female and have recently given birth!!!

Of course,it will be easier to look for another breast-feeding human mother and she will only be too glad to feed the extra child....or if in town,buy formula!!!!

Now,the science is not convincing. @pm says that Nitrogen is a poorer conductor of heat than air. This is not true. Thermal conductivity of air is 0.024 W/(mK)....and that of Nitrogen is 0.024W/(mK). They are identical!!!!!!

Their thermal expansions coefficients are also identical; that is,they expand at the same rate as the temperature is increased.

The slower deflation is due to the fact that air has a higher moisture content. This moisture condenses under pressure thus causing the deflation.

Finally,@pm writes ... in most gas stations these days you have to pay about $.75 to inflate tyres,to fill your tyres with nitrogen is about $10.00 and you'll not need to be checking air for a while ... .....

Now in Kenya,air pressure is completely free of charge and you can fill up as many times as you wish as frequently as you need. Many times I have gone with a 'slow puncture' for weeks,just topping-up every two or three days.

Thus,this will only work if petrol stations start charging for pressure.....now that will be the day!!!!



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