- Jun 15, 2010
- Reaction score
Hi Steamchick,Interesting Jack. I didn't know they could quote "temperature" for combustion, as (in my un-educated stupidity) I thought the gas burned the Hydrogen in the first part of the reaction, then C + O = CO and finally CO + O2 to CO2 in the final stage of combustion. So in my mixed-up mind all hydrocarbon fuels are different calorific values but temperature is a product of how the gases mix and how fast each reaction occurs at each stage..?
Thanks Murph. I'm trying to get a UK supplier to supply the cup-washers I want. Fettle-box came back with "closed for a week". I'm cutting washers from my welding gauntlets at the moment - but the leather only lasts a few years compared to bought cup washers.
As I have inherited 5 paraffin blow-lamps, fuel is relatively cheap and easy to manage, and for my jobs the Propane and Petrol Blow-lamps are powerful and reliable and adequate heat sources, I'll not be trying any other fuels for a while. I did have a problem this last week trying to do a titchy little aluminium soldering job with Butane. So cold (below 3 degrees in my garage) that the butane canisters just failed to boil enough gas to feed the blow-lamp! But it was just enough to pre-heat the petrol blow-lamp which easily did the job (almost too much heat - high risk of melting the aluminium!).
Stay safe! - and warm.
talking about gas freezing I have a couple of anecdotes. I used to crew a sailing boat on the Norfolk and Suffolk Broads/river complex for a friend who owned the boat, a lovely ex hire boat of the Leading Lady class of Herbert Woods, Potter Hiegham, 32 ft long, 12ft beam and 400 sq feet of bermuda rigged sail - but that's beside the point. We often went in the winter months when the wannabee sailor holiday crowd were sparse or non existant and huge flocks of starlings would entertain us with their sky dances (aka murmurations). the gas cooker in the galley was powered by Butane which often froze, as did the Broad itself, (as well as my sleeping bag which would get soaked by the evaporation dripping from the cabin roof overnight). To combat thfrozen gas, Dave - the boats owner - could only get a faint flame from the burner and would then place the cylinder on that flame until the gas started to boil and produce a decent pressure. Fair gave me a fright the first time he did it in the cramped galley but I got used to it eventually.
Another time some workmen were doing something in the village to do with footpaths and using one of those triple burner heads, again in winter and the propane froze due to the cold external temperature and the rate of evaporation of the gas with the high consumprtion burners. The outside of the bottle was white with frost at that stage. Their solution was to get hold of bbq charcoal and buit a fire on the verge on which to warm the cylinder and noncholantly carry on with their work. as for cold workshop I've only managed to stay out there for about 30 minutes at a time and had to retreat to the house for a defrost on several days recently.
Stay safe, healthy and warm