that Poly-Énergie has been involved with since the 1980s. The 840-unit residence, which has heating demands of 10 MWh, comprises three main elements: boiler, pipes, and substations. The 5-MW boiler plant, which will house four wood pellet Pyrotec KPT1250 boilers of 1,250 kWh each and one emergency natural gas boiler of 5-kWh capacity, is under construction. The boilers are due for delivery in January 2011, with completion expected four to six weeks later. The boiler room will be located in a multi-residential building and boast low-temperature stack emissions. Simon Koeb, business unit manager for Biomass Commercial, Viessmann, de-scribes gasification as a two-stage process: the fuel is first pre-dried and gasified in the burner trough, after which the gas is mixed with a controlled amount of air to achieve its full combustion. EVENTS BOARD JANUARY 10-12, 2011 Pacific West Biomass Conference & Expo Seattle, WA www.biomassconference.com/pacificwest JANUARY 25-26, 2011 Energy from Biomass & Waste London, UK www.ebw-uk.com JANUARY 26-29, 2011 Central European Biomass Conference Graz, Austria www.biomasseverband.at/biomasse?cid=41143 JANUARY 31-FEBRUARY 4, 2011 CanBio Mission to Wood Energy Solutions Koli, Finland www.canbio.ca/events/finland11/finland11_announcement.php Image: Viessmann Group MARCH 2-3, 2011 European Pellet Conference Wels, Austria www.wsed.at More events at canadianbiomassmagazine.com Four Pyrotec boilers will provide biomass-based heating to Cité Verte’s multi-residence community. Horizontal Grinders Just Became Affordable The system will use 2,600 tonnes/year of wood pellets manufac-tured from bark-free softwood residue by Granules LG International Inc. and delivered in 80 semi-trailer truckloads. Because the heating plant will be located among residential buildings, Routhier says that the developers chose a proven boiler technology that can produce energy as cleanly as possible on a large scale. With concern about emissions and reliability on the minds of the public, “we don’t want to go experimental,” he says. Making the system as clean and efficient as possible poses chal-lenges, says Koeb. A heat exchanger was added to the back of the boiler, cooling the exhaust to around 30ºC. “I’ve never really seen anybody do that, and that had some implications for our control sys-tem, where we had to make some adjustments,” he says. The project requires a 2-km twin-pipe Logstor circulating water distribution network of twin pipes, the most efficient district heating supply pipes available. Ranging in size from one to eight inches in diameter, they are more efficient than the usual arrangement of two separate pipes, releasing about 30% less energy to the ground as wa-ter moves between buildings. Aqotec is providing 17 aqoCad district heating substations of 30 to 1,400 kW each and offering advice on their configu-ration. The substations will reduce the amount of piping re-quired on the site and help to reduce overall heat loss. “We have gone to great lengths to install the most advanced neigh-bourhood heating system fed by biomass that I can think of in Can-ada,” says Routhier. • – Colleen Cross www.raycomfg.com : 800.392.2686 Dispose of waste wood without breaking the bank! Finally… there is a horizontal grinder within reach of the small contractor. The new RAYCO RH1754 is the newest addition to RAYCO Manufacturing’s line of environmental equipment. It is designed to be both compact and affordable. Available as either towable or self propelled on a steel tracked undercarriage, the RH1754 allows easy transportation from job to job and can be maneuvered and operated on small jobsites, inaccessible to larger machines. This unit is highly productive and capable of grinding a wide variety of wood waste materials. Ideal for processing tree limbs and brush, sawmill waste, dimensional lumber scraps, pallets, and for re-grinding wood chips. It offers an eco-nomical solution for reducing wood waste, lowering dumping costs, and creating high quality mulch. Contact your authorized RAYCO dealer for more information or call 800.392.2686 for a dealer near you. pantone pantone 485 1235 pantone 485 Canadian BIOMASS 23
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