TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
8
efficiency is easier to adjust since the
fuel quantity in the combustion chamber
remains constant and predictable.
Fuel efficiency.
High combustion
efficiency is also determined by
consistently low moister content of
pellets (consistently under 10% as
opposed to 20% to 60% moisture content
of the logs). Low moisture content,
controlled fuel portions and precise air
setting means high combustion efficiency
and very low carbon oxides in the flue
gases.
i
When purchasing pellets, ask
for
conformity
declaration
and certificate issued by an
accredited
laboratory
and
make sure the fuel meets the
requirements indicated in the
manual. If you purchase large
amount of pellets (bulk supply
for the entire heating season
for example), ask your supplier
to provde accurate and true
information about the storage
conditions.
Table 2. European Certification of Wood Pellets for Heating Purposes
Parameters
Units
ENplus-A1
ENplus-A2
EN-B
Diameter
mm
6 (± 1)
8 (± 1)
6 (± 1)
8 (± 1)
6 (± 1)
8 (± 1)
Lenght
mm
15 ≤ L ≤ 40
1)
15 ≤ L ≤ 40
1)
15 ≤ L ≤ 40
1)
Bulk dentsity
kg / m
2
≥ 600
≥ 600
≥ 600
Calorific/heating value
MJ / kg
≥ 16,5-19
≥ 16,3-19
≥ 16,0-19
Humidity /moisture
Ма .-%
≤ 10
≤ 10
≤ 10
Dust
Ма .-%
≤ 1
3)
≤ 1
3)
≤ 1
3)
Mechanical durability
Ма .-%
≥ 97,5
4)
≥ 97,5
4)
≥ 96,5
4)
Ash
Ма .-%
2)
≤ 0,7
≤ 1,5
≤ 3,5
Melting point of ash
°C
≥ 1200
≥ 1100
-
Chlorine content
Ма .-%
2)
≤ 0,02
≤ 0,02
≤ 0,03
Sulfur content
Ма .-%
2)
≤ 0,03
≤ 0,03
≤ 0,04
Nitrogen content
Ма .-%
2)
≤ 0,3
≤ 0,3
≤ 1,0
Copper content
mg / kg
2)
≤ 10
≤ 10
≤ 10
Chromium content
mg / kg
2)
≤ 10
≤ 10
≤ 10
Arsenic content
mg / kg
2)
≤ 1,0
≤ 1,0
≤ 1,0
Cadmium content
mg / kg
2)
≤ 0,5
≤ 0,5
≤ 0,5
Mercury content
mg / kg
2)
≤ 0,1
≤ 0,1
≤ 0,1
Plumbum content
mg / kg
2)
≤ 10
≤ 10
≤ 10
Nickel content
mg / kg
2)
≤ 10
≤ 10
≤ 10
Zinc content
mg / kg
2)
≤ 100
≤ 100
≤ 100
1) Not more than 1% of the pellets may be longer than 40 mm, max. Length 45 mm;
2) Dry weight;
3) Particles <3.15 Mm, particulate matter, before handing over the goods;
4) Measurements with lignotester limit value ≥ 97,7% by weight.