That is great Neil, In terms of "pot stability" how did you decide what 'safe' was? The tendency to tip can be measured in a couple of ways. One is striking the pot square on with a weight on a rope - a tried and true repeatable impact. Another is to tilt the whole stove. What's your preference? What assessment would you trust? I know there is a stove tilt test here and there but the only practical one would have a full pot in place, if safety is the goal. South Africa has a 4-way tilt with pot, right Prof Lloyd? I'll have a look. The advantage of a tilt is simple repeatability and the advantage of an impact is that it reproduces the most likely real-life cause of a dangerous situation. Another test could be a string attached to the upper limit of a large, full pot, and measure the horizontal pull required to get it to tip over at the worst pot rest orientation. The pot size would have to be related to the 'rated pot size for the stove. I am suggesting this could be a size at a standard heat flux rate. That ties the pot size to the kW. Something to think about. We are discussing it now. Suggested methods welcome. Regards Crispin in Jakarta >>Q10>>>
I solved the problem of stove tipping on rough camping ground recently. I made a simple uninsulated tincanium rocket stove for our children camping at Reading Festival England where only fires are allowed for cooking, no gas stoves due to past delinquency with gas cannisters! For the top plate I made the simple interlocking cross pieces that Tom Reed uses in the woodgas campstove, only a really tight fit so that they grip the can well. This permitted a slight oversize to the cross, overhanging the sides of the chimney for greater pot stability. For the base stabiliser I used two metal rods inserted through tight fitting drilled holes at right angles just above the base can rim. The second inserted rod a slight banana shape, enough to clear the first rod. The resulting slight turn down into the ground of the second rod proved useful as it permitted insertion into the ground with pressure from a boot or hit with a stone until the stove was very firm. All very crude and simple, but effective, and it worked very well for them with no incidents, becoming the envy of their fellow campers, ("where did you get boiling water from?!"). Best wishes, Neil Taylor _______________________________________________ Stoves mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org for more Biomass Cooking Stoves, News and Information see our web site: http://stoves.bioenergylists.org/ | ||
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