Orlanski Orligno 600, Instruction Manual & Service Manual

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4. Gasification process
Gasification hot air blower ORLIGNO 600 must operate in specified conditions.
Optimal hot air blower temperature is 85 - 90 °C. At lower temperatures gasification process is not
running correctly – hot air blower cannot reach nominal power and fuel usage is relatively higher.
Wood drying in loading chamber is crucial stage in gasification process – at lower temperatures
hot air blower cannot reach right temperature and gasification process is disturbed. Main source
of heat in Orligno 600 is gas flame created during gasification process, if main conditions won’t be
met for proper gasification process, amount and quality of flame will be inadequate.
Essential factor influencing right gasification process is quality, moisture content and type of burned
wood. The best is hardwood (beech, oak, harnbeam) with moisture content 15-20%. Lenght of
wood should be the same as depth of loading chamber. Usage other types of wood like spruce is
acceptable, however heat exchanger pollution will increase and time between boiler stoking will
decrease. In order to determine proper moisture content it is recommended to use moisture meter
(pic. 3)
Appropriate wood assures correct boiler operation. Usage of wood with different parameters other
than recommended will affect proper work of boiler.
Tree’s chopping off
O
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um
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umi
di
ty
Outside drying
- in months
Wood humidity [%]
Pic.2 Wood humidity chart
Pic.3 Moisture meter
Main fuel wood logs, wood in halves and quarters
alternative fuel
small pieces of wood, shavings, briquettes
must be burned together with wood logs
lenght 50 cm
diameter 15 - 25 cm
moisture content 15 - 25 %
calorific value 4,1 - 4,4 kW
Fuel specification