Richard did post a full reply to this enquiry, just not sure that it got posted on to the people in question? Kind regards Adrian
Sent from my iPhone On 20 Feb 2013, at 2:43 AM, [email protected] wrote: > Crispin and list (maybe) adding Richard Pocock) > > A nice site for this stove is www.rocketworks.org/ (same as Crispin gave > last year and below) > > Few questions below > From: "Crispin Pemberton-Pigott" <[email protected]> > To: "Stoves" <[email protected]> > Sent: Tuesday, February 19, 2013 3:47:12 PM > Subject: Re: [Stoves] Three (?) Stoves from Rockworks > > Dear Friends > > An update on at least one version of the stove referred to below. This stove > is from a company called Rocket Works though from a technical perspective it > is not a classic Rocket stove by several measures. You can draw your own > opinion of course. > [RWL: I'd like to hear your set of differences. I wonder where this > fits in the range described by Nordica at last ETHOS meeting in terms of > dimension ratios.] > > The picture attached was passed around in the public domain so it is OK to > talk about it. It is interesting from a couple of perspectives. One is that > it produces very little charcoal, meaning it burns the whole fuel. This is > different from most Rocket stoves and in ones that have a similar layout but > have a grate. Rocket stoves tend to produce charcoal which sits on the bottom > of the stove under fuel. I would say this produces about ¼ as much and > maintains a high combustion efficiency. > [RWL: This is first time I have heard this about charcoal and Rockets. > Can some users describe the maximum amount they have ever retrieved?] > > The PM emitted on high power (using ≈12% moisture fuel) is similar to that of > high end fan stoves like the Oorja burning pellets and the Philip Stove > burning chopped wood, territory thought by some to be reserved for stoves > with blowers. I am not saying such performance from a side-feeder was > unexpected, but it is unexpected that it would be so soon. Clearly they have > been playing around with it a lot. The high power PM level would place it at > the upper end of Tier 3, right at the edge of Tier 4. > [RWL: How can I find the full set of data you are reporting here? > > It has some measure of preheating of the primary air and definitely preheated > secondary air with a side-feed of stick fuel. From the look of the structure > it will not be hot to the touch (most of it) and the cost (and mass) is > obviously low. Two of its technical advances are evident in the photos on > their website. > [RWL: This is the first time I have heard of a rocket having separate > primary and secondary air supplies. Can you or Richard describe these > features some more. Agreed on the nice feature of the wire mesh. Cost? > > One of the principles is the South African Richard Pocock who we know from > solar cooker days. That name may ring a bell with a few of you. Perhaps he > will provide some technical and performance details. > [RWL: I also hope so.] > > Regards > Crispin > > > > Date: Tue, 11 Dec 2012 22:06:43 +0800 > Subject: [Stoves] Three (?) Stoves from Rockworks > Dear Friends of Rocketry > There are some all-metal Rocket stoves at http://www.rocketworks.org/ > featuring a new wrinkle on the under-air pathway. They are made in South > Africa. They have a gel fuel insert that makes it a dual fuel stove. > Performance of both not yet known. > Regards > Crispin > > > _______________________________________________ > 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://www.bioenergylists.org/ >
_______________________________________________ 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://www.bioenergylists.org/
