Micro-gasification: Cooking with gas from biomass - Amper

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Micro-gasification: Cooking with gas from dry biomass A similar design is manufactured in Indonesia since 2009. Towards the end of 2010 the production is expected to scale-up considerably to a capacity of 10,000 stoves per month. MJ Rice Husk Gas Stove (Indonesia) Model RHGS 140-62D Target area: Indonesian rural villages near rice husks with access to electricity Fuel type: Rice husks Designed by: Prof. Alexis Belonio Retail price: USD 25-30 Numbers sold: 500 units Start of production: First started to develop the model in 2007, now it is in its 2nd generation Manufactured by: PT Minang Jordanindo Approtech Contact: Mr. Bima Tahar Source: A Belonio Address: Adhi Graha Building 15 th floor, Suite 1502 A, Ji. Gotot Subroto Kav 56, Jakarta 12950, Indonesia Phone 021-5262525, Fax 021-526 24 16 Production capacity: 40 units per month Short Description: Width 300 mm, Length 300 mm, Height 780 mm, Weight 6.0 kg Power heat output 1 kWt Features: Air supply: 16-watt, 220 volt computer fan; airflow can be varied by rotating the air shutter ring; gas burner is an open-type for ease of char disposal Handling: Lighting at the top with a piece of paper or sprinkling 1 ml kerosene, Start-up time 1 minute, Char removal by tipping over the stove. Char-making ability: Very good, charred rice husk can be used for Bokashi-type soil fertility amendments User feedback: Affordable, cheap to run, uses waste rice husk as fuel, convenient to use, easy to ignite, no smoke during operation, flame intensity can be controlled, easy to load fuel and discharge char Accidents reported: None Performance data: 8 min to boil 1.5 litres of water; Fuel load 0.9 kg; Batch system of about 40 to 60 min per load of rice husks fuel. Further info: http://www.minangjordanindo.com/ricehuskgastove.htm From 2007: http://www.bioenergylists.org/beloniolowcostrhstove http://rolexawards.com/en/the-laureates/alexisbelonio-the-project.jsp Plans on future development of ‗3 rd generation‘ with a thermoacoustic power-source: http://rolexawards.com/en/the-laureates/alexisbelonio-fighting-theblackbeast.jsp Other comments: same manufacturer has a steam-injected version of a rice husk stove which is considerable lower. http://www.minangjordanindo.com/steaminjectedgastove.htm HERA – GIZ Manual Micro-gasification Version 1.01 January 2011 45
Micro-gasification: Cooking with gas from dry biomass A new production of rice-husk gasifiers based on the Belonio-design has just started in September 2010 by Mr. Paul Olivier in a Vietnamese-owned workshop in Dalat (Vietnam). All three gasifiers (reactor diameters of 150, 250 and 500 mm) have the same height (775mm) and share the basic design. All are manufactured from stainless steel and equipped with the same fan, covered by a plate for protection from spills. The speed regulator is mounted on the fan housing. Two heat sink fins on the fan housing block the transfer of heat to the fan and the fan speed regulator. Power supply can be from the grid or for the household-size units via a motorbike battery inexpensively pre-wired for this purpose. The supplied adapter handles all electrical inputs (Vietnam, Laos, Cambodia, USA, Colombia and Europe). The following prices include gasifier (all in stainless steel), fan, speed regulator and adapter. Prices as per December 2010 do not include a battery or battery charger: 150 gasifier (burn rate 2-4 kg biomass/h) = 52 USD 250 gasifier (burn rate 5-10 kg biomass/h) = 92 USD 500 gasifier (burn rate 20-40 kg biomass/h) = 232 USD (for institutions, greenhouses) Models 150 and 250 (Vietnam) Fuel type: Rice and coffee bean husk Designed by: Alexis Belonio Retail price: 52 / 92 USD. Table-high stove top for 1 or 2 pots, enclosures available Numbers sold: Just starting, < 100 Start of production: September 2010 Contact: Paul A. Olivier PhD paul.olivier@esrint.com http://www.esrla.com/ Address: 27C Pham Hong Thai Street, Dalat, Vietnam, Skype: Xpolivier Source: Paul Olivier Louisiana phone: 1-337-447-4124 (rings Vietnam) Short Description: Top-lit updraft combustion unit (reactor), either with incorporated burner unit or a stove top at table height with a main burner for cooking and one pot hole for warming. Stainless steel. Reactor with 150 or 250 mm diameter, 775 mm high. Features: With powerful fan, fan speed controllable by rheostat, powered by a wet-cell motorbike battery (not included). Handling: In operating the stove, one removes the burner and fills the reactor with hulls. The hulls are lit and the burner is put back in place. It takes about 15 seconds for the stove to be fully operational, and over 45 minutes to gasify all of the hulls in the reactor. Generally this is enough time to cook a meal at the cost of about 1.1 cents of a USD. Char-making: Makes good biochar, which can be removed at the bottom of the reactor /combustion unit. Further info: http://www.esrla.com/pdf/gasifier.pdf also featuring drawings and photos of various types of enclosures for safety and stability. A video showing the 150 model is found on http://www.esrla.com/pdf/gasifier.mpg More info on the Model 250 http://www.bioenergylists.org/content/250-gasifier, or see section on gasification in http://www.esrla.com/pdf/composting.pdf Other comments: Contact Paul Olivier for a custom-made offer.paul.olivier@esrint.com The 500 mm diameter model is very suitable to heat greenhouses and to produce larger amounts of biochar, 800 mm unit for 50-100 kg of rice hulls per hour is under development. HERA – GIZ Manual Micro-gasification Version 1.01 January 2011 46
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