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Stuart R (Scunnered) - BPL Forum Member

My Locale Scotland
About Me "When you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind; it may be the beginning of knowledge, but you have scarcely in your thoughts advanced to the state of science, whatever the matter may be."
Sir William Thomson (Lord Kelvin) 1883

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All Forum Posts by Stuart R

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Re: Single AA battery headlamps
I don't know what the current state of the market is, but a few years ago the only solution was to make your own. This uses a single AA and drives a full 1 Watt into the LED when on high. This ...

In GEAR » Single AA battery headlamps
September 18, 1:10am

Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: Small gas canister (50g)
>>"You may be aware that as a canister is used in an upright position, the propane will get used up very quickly (due to it's higher vapour pressure) and soon the canister will conta...

In GEAR » Small gas canister (50g)
September 13, 1:49pm

Re: Small gas canister (50g)
I emptied one of these to accurately measure the weight of the empty canister: 23.7g What was interesting: I emptied the contents into another partially empty canister which contained a butane/p...

In GEAR » Small gas canister (50g)
September 13, 1:21pm

Re: Re: Re: Reflected heat
Anodised aluminium has a much higher emissivity than shiny titanium: http://www.engineeringtoolbox.com/emissivity-coefficients-d_447.html Some paints can be higher still. Anodised (or painted) ...

In GEAR » Heat Exchanger pot for melting snow
September 10, 2:06am

Re: Re: Re: Re: Re: Re: Re: Re: Small gas canister (50g)
I still assert that the boiling point of a 80/20 mixture is around -15C. The canister needs to be at least 5C warmer than the boiling point to have sufficient pressure to operate a stove, so aroun...

In GEAR » Small gas canister (50g)
September 01, 9:59am

Re: Re: Re: Re: Re: Re: Small gas canister (50g)
It's not that simple: you need to account for the vapour pressure and the molar fraction of each component in the liquid mixture.

In GEAR » Small gas canister (50g)
September 01, 6:40am

Re: Re: Re: Re: Small gas canister (50g)
www.go-system.co.uk/media/gosystem/brochures/GoSystem-Professional-and-DIY.pdf Regarding boiling points, yes pure n-butane is -0.5C but my point is that the gas in butane canisters is not pure -...

In GEAR » Small gas canister (50g)
September 01, 6:02am

Re: Re: Small gas canister (50g)
Woubeir - yes, this looks like old stock. Add - it is still listed in the GoSystem catalogue

In GEAR » Small gas canister (50g)
August 31, 3:37pm

Re: Interesting
"Butane" for use in a canister stove has no requirement to be pure. The Comite Francais du Butane et du Propane proscribes the properties of commercial Butane which it defines (in French...

In GEAR » Small gas canister (50g)
August 31, 3:35pm

Small gas canister (50g)
I found this gas canister in my local hardware store. It has a standard threaded resealable Lindal valve. The canister body is a single piece of aluminium, like a deodourant spray. It contains 50g...

In GEAR » Small gas canister (50g)
August 31, 12:53pm

All Reader Reviews by Stuart R

Showing 1 - 1 of 1 | Page: 1
 

Review

Category

Coleman Exponent Non-stick Cook Kit
At first glance this looks like just another anodised aluminium cook set, but on closer inspection you will find that these pots have a real standout feature. There is a spiral groove machined or stam...

In Cookware - Other
March 29, 12:43pm