Pellets are noble granulated fuel for usage in automatic boilers and fireplaces.
Pellets are made from wood material - usually from raspings - scrap material from timber production.
Standard values according to
Specifications for pellets quality
ÖNorm M 7135
DIN 51731
DIN plus
Diameter
mm
4 -10 mm
4 - 10 mm
-
Length
mm
5 x D1
<50
5 x D1
Density
kg/dm3
>1,12
1,0 - 1,4
>1,12
Water content
%
< 10
< 12
< 10
Ash
%
< 0,50
< 1,50
< 0,50
Calorific value
MJ/kg
> 18
17,5 - 19,5
> 18
Sulfur
%
< 0,04
< 0,08
< 0,04
Nitrogen
%
< 0,3
< 0,3
< 0,3
Chlorine
%
< 0,02
< 0,03
< 0,02
Attrition
%
< 2,3
-
< 2,3
Additives supporting Pelletscreation
%
< 2
(2
< 2
(1 max. 20% quantity of pellets can have length within 7,5 multiple of pellet diameter
(2 DIN disallows additives, however this ban will be suspensed by regulation for small heating units.
In boilers KP line is possible to burn also pellets, with quality that do not match above standards.
In case of doubts it is recommended to consult usage of substandard pellets with the boiler producer.
Optimal burning results could be reached with usage pellets which matche above standards.
Fuel delivery:
- freely bulk - transport in tank with pneumatic emptying
- PE / PP bags 15 - 25 kg
- Bags Bigbag 800 - 1200 kg
Storage of fuel
Pellets in PE / PP bags - in common storage areas - without flowing or spraying water, in common airline humidity.
Freely bulk pellets - in seasonal silos, which are specially made for this purpose
Orientation fuel consumption
For 1 kW needed heat output of boiler we count for guidance on pellets consumption in quantities c. 320 kg / year, i.e. 0,5 3 / year
Space needed for storage of year fuel consumption (in seasonal bin)
For 1 kW needed heat output of boiler we count for guidance with c. 1,2 m3 space in storage room
THE EUROPEAN REGIONAL DEVELOPMENT FUND AND THE MINISTRY OF INDUSTRY
AND TRADE OF THE CZECH REPUBLIC SUPPORT INVESTMENT IN YOUR FUTURE.