Will do. My son Jeremy got some nice photos as well. The thing I liked is that the gas plant looks quite modern.
It has a series of squat tanks with manometers on the side which I presume are filled with water and the gas is bubbled through them sequentially. Yes? I met one of the partners last night and he told me the engine was 135 KW. Their charge per ton is amazingly low - about $60 for clean unpolished rice. This is no doubt reflecting the fact they don't pay much for motive power. I have also seen several engine and cattle drawn stove vending 'trucks' absolutely loaded with stoves. There are perhaps 6 types available for charcoal and wood. The $4 stove lasts about 9 months and the $10 about 2 years. There are different sizes but the upper limit is not so big. Above they use fixed stoves. Pots run up to 80-100 litres. Last night I made and demonstrated an ingiting cone as discussed previously here. The demonstration of low smoke ignition and the ability to burn very small amounts at a high heat has already sparked discussion of how to introduce this in the form of a permanent feature of the stove. All the charcoal stoves are metal-clad terracotta. No one seems to be processing the char fines into briquettes. Lots of room for improvement. Regards Crispin -----Original Message----- From: "Tom Miles" <[email protected]> Date: Thu, 1 Nov 2012 20:52:54 To: <[email protected]>; 'Discussion of biomass cooking stoves'<[email protected]> Subject: RE: [Stoves] Rice hull gasifier milling rice Crispin, Please send photos and we'll put them on the website. I'd love to see them. I haven't heard of a rice mill powered with a gasifier since a Chinese gasifier was used in Mali for several years. Many thanks Tom -----Original Message----- From: Stoves [mailto:[email protected]] On Behalf Of Crispin Pemberton-Pigott Sent: Thursday, November 01, 2012 8:26 PM To: Stoves Subject: [Stoves] Rice hull gasifier milling rice Dear Gasifying Friends I just stopped at a rice milling plant that is about 20 km outside Battambang. It processes about 1.9 tons per hour. It is all flat belt driven and a lot of it is made of wood. The power plant is an internal combustion engine of about 200 HP. It runs on gas. The gas is supplied by a rice hull gasifier at the back of the building where there is literally a mountain of rice hull. The gasifier looks quite modern and operates in a way that is day-and-night continuous. The rice hull is fed into the vertical reactor by an auger. The reaction zone position is not exactly constant but is maintained within certain limits. The ash/char is dropped off the top into a shallow pond to quench it. I see no reason why a small stove could not be operated in the same manner: TLUD with episodic feeding from below via a plunger of some sort. Rice hull flows easily. If the primary air control is adequate a range of 1 to 4 kW would be perfect. If anyone is interested I took pictures of the whole gas system and power plant. Regards Crispin at km post 271 outside Battambang _______________________________________________ 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/
