| Gallery, Projects and General > How do I?? |
| I need help with tuning a propane burner. |
| << < (2/3) > >> |
| sparky961:
The burner will function very differently with a "flare" on it, or inside of a smaller chamber. You may want to try putting it inside a pipe about twice the diameter of the end, and maybe about 1-2 times the D inside it. |
| vtsteam:
Pure guesswork , but looks to me like your square air opening is too far back to benefit from the gas jet, so the jet isn't pulling much air in. Is it possible to put in a good size spacer to move the jet orifice back without making a whole new tube? You could also make a split ring of a short bit of tube to slide over the main tube and adjust the air orifice size and position with it after you move the gas jet back. ps. If you haven't already, flare the end of your small gas inlet pipe, where the tubing and hose clamp (jubilee clip?) attach -- a hose clamp can't really hold fast onto a smooth pipe. Wouldn't want that hose to come off. :( |
| andyf:
I don't know if you are trying it out in an unheated environment, but the vapour pressure of propane at 0°C is only about 2/3 of its vapour pressure at 30°C, and as you draw propane off from the bottle at 0°C, the bottle will slowly cool down to below 0C. Thus, the ambient temperature will affect on the propane pressure at your nozzle. Not a very big effect, of course; we don't see 30°C very often in the UK. I've never seen this book, except in recommendations: "Gas burners for forges, furnaces and kilns" by Michael Porter, but maybe it would help if you can locate a copy. Andy |
| Pete49:
--- Quote from: andyf on March 27, 2013, 07:57:15 PM ---I've never seen this book, except in recommendations: "Gas burners for forges, furnaces and kilns" by Michael Porter, but maybe it would help if you can locate a copy. Andy --- End quote --- The book is available via amazon and is a handy reference book for $20. The link is http://www.amazon.com/Gas-Burners-Forges-Furnaces-Kilns/dp/1879535203 Pete |
| S. Heslop:
--- Quote from: vtsteam on March 27, 2013, 07:42:41 PM ---Pure guesswork , but looks to me like your square air opening is too far back to benefit from the gas jet, so the jet isn't pulling much air in. --- End quote --- I don't understand why opening the choke would blow the flame out in this instance. Maybe I could try rolling a flare. |
| Navigation |
| Message Index |
| Next page |
| Previous page |