Pressed Wood Briquettes In Accordance With Din En Iso 17225-3; Recommended Fuel - HDG Euro 30 Operation Manual

A
SH CONTENT
L
ENGTH AND DIAMETER
W
ATER CONTENT
A
SH CONTENT
For operating the boiler in an environmentally-friendly way, a low
ash content is required. At the same time, this also minimizes the
content of elements critical for combustion. Inorganic substances
which are aerosol forming, such as potassium, chlorine or sodium are
the main factors determining dust emissions in combustion. These
elements are predominantly found in the needles, leaves and bark of
the tree. Well-prepared, pure wood types, such as delimbed energy
wood without needles, leaves and only a minimal proportion of bark,
have the lowest content of elements critical for combustion. They are
therefore recommended for use in residential boiler systems.
The ideal ash content is a maximum of 1.0% by weight (A1.0) which
complies with property class A1. When using wood chips with a
higher ash content (property class A2 and B1/2) , secondary
measures (filter technology) may be necessary for complying with
the dust emission values according to the 1st Federal Emission
Control Ordinance (2nd stage).
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RESSED WOOD BRIQUETTES IN ACCORDANCE WITH
17225-3
Pressed wood briquettes are pressed shavings, with or without
various forms of additives, with a diameter of more than 25 mm.
Essential criteria for the definition of the property classes are the
length and diameter, moisture content and ash content of the fuel.
• D100/L500
The diameter of the briquettes must not exceed 100 mm and the
length must not exceed 500 mm.
The water content must not exceed a maximum of 12 % (M12) for
property class A1 and a maximum of 15 % (M15) for property class A2
and B.
The ideal ash content is a maximum of 1.0% by weight (A1.0) which
complies with property class A1. When using pressed wood
briquettes with a higher ash content (A2 and B) , secondary measures
(filter technology) may be necessary for complying with the dust
emission values according to the 1st Federal Emission Control
Ordinance (2nd stage).
If shavings are used as fuel for the HDG Euro 30/40/45/50, this will
lead to a reduction in the nominal thermal power.
R
ECOMMENDED FUEL
It is important that fuel is used according to HGD fuel specifications
in order to guarantee compliance with emission limit values
according to the 1st Federal Emission Control Ordinance (1st and
2nd stage). In particular, all fuel requirements concerning size, water
3 Mode of operation – Fuel quality requirements
DIN EN ISO
21