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Evaluation of Commercially Available Small Scale Biomass Electrical Generation Technologies Appropriate to the Yukon

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Evaluation of Commercially Available Small Scale Biomass Electrical Generation Technologies Appropriate to the Yukon ( evaluation-commercially-available-small-scale-biomass-electr )

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design this is not considered a serious issue as the engines are standard GM V8 engines with relatively low cost ~$10k. - Spanner has a requirement for air changes per hour in unit room to prevent build-up of noxious gases - No emissions or ash disposal issues (chips have little ash) - Chip drying is accomplished by very low level heat – in most cases operator vents room air from where room is located into the bottom of a trailer which has been equipped with a slotted base plate – the warm air goes up thru the load of chips - Visits highlighted the need to have a “champion” operator who has “ownership” of the system – this is the approach which needs to be followed if Yukon is to install one unit – it is doubtful that government buying a unit and dropping it into a community as a demonstration will work – fuel feed and condition is such a critical issue that someone who “cares” must monitor this aspect and make sure it is done correctly, this is not onerous and require a lot of time but it must be done correctly. Ankur Ankur (India) is a supplier of downdraft gasifier systems in the range of 5-850 kWe, with custom- built units up to 2.2 MWe available. Ankur has over 50 installations worldwide, mostly in third world countries. Ankur’s syngas cleaning system includes a cyclone, a Venturi water scrubber and various levels of particulate filters (wood chips, sawdust and a fabric filter). The cleaning is rudimentary and the systems typically have high labour costs due to frequent engine teardowns. Treatment of contaminated water from the scrubber unit also requires considerable attention. Given the level of attention required, even though the system is commercially demonstrated worldwide it has not been installed in Canada and the unit is not recommended for remote communities in the Yukon. The system is available in Canada through Aboriginal Ankur Corporation. http://aboriginalankur.com/ Babcock Vølund Babcock Vølund (Denmark) developed a fixed bed updraft gasifier system starting in 1996 in Harboøre, Denmark (with substantial government subsidy). The Harboøre gasifier was operated on heat-only mode (6.5 MWth for district heating) for four years until the syngas was deemed clean enough for the 1.5 MWe Jenbacher engine which since then has operated for over 75,000 hours. The technology is now licensed to JF Engineering Corp. of Japan and they are planning units in the 2-3 MWe range. Biomass Canada Ltd Biomass Canada Ltd. is an Edmonton-based developer of a catalytic (a fixed bed of Ni-Co balls is part of thee bed) downdraft gasification system. During operation the catalyst bed acts as a tar cracker with temperatures in the 2000 C range. The company has received funding from the Alberta Government for a 2MWe demonstration unit which at this writing is not yet complete. Nexterra Nexterra is a Vancouver-based supplier of modular updraft gasifier systems and has to date sold eight commercial systems to supply up to 3 MWth of heat per module. In 2012, Nexterra completed the installation of a 2MWe CHP demonstration at the University of British Columbia. 13

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Evaluation of Commercially Available Small Scale Biomass Electrical Generation Technologies Appropriate to the Yukon

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