[Stoves] Three (?) Stoves from Rockworks

[Crispin Pemberton-Pigott]

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.

 

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.

 

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. 

 

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.

 

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.

 

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. <http://www.rocketworks.org/> 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

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20130219/a0eed9bb/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: RocketWorks Stove.jpg
Type: image/jpeg
Size: 659933 bytes
Desc: not available
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20130219/a0eed9bb/attachment.jpg>