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Bulk density of forest energy chips

100%

Gendek A., Aniszewska M., Chwedoruk K.

Annals of Warsaw University of Life Sciences - SGGW. Agriculture

|

2016

|

nr 67

2

Industrial wood chips fractions

88%

Glazar K., Bocianowski J., Wojtkowiak R.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

|

2010

|

tom 09

|

nr 2

5-8

The wood chips (product of chipping) can be assigned for production of particle and fibre boards. The object of the performed investigations was to determine fractions of industrial wood chips. The chips were harvested with chippers of various kinds. The determination of chips fractions was based on 5 fraction classes. In all the samples, fraction 10-35 mm was the most numerously represented. For all the experimental surfaces no statistical substantial differences between < 2 mm fraction and > 50 mm fraction were found. The results of fractions of industrial wood chips dimensions were up to Polish standards of industrial wood chips dimensions.

3

Effect of chipper knives sharpening on the forest chips quality

88%

Gendek A., Nawrocka A.

Annals of Warsaw University of Life Sciences - SGGW. Agriculture

|

2014

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nr 64 Agric.Forest Eng.

4

The effect of feed speed on effectiveness of chip evacuation in drilling of wood materials

88%

Szymanski W., Pinkowski G.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

|

2012

|

tom 80

5

Investigations on the calorific value of forest chips

88%

Gendek A., Zychowicz W.

Annals of Warsaw University of Life Sciences - SGGW. Agriculture

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2014

|

nr 63 Agric.Forest Eng.

6

Convective drying of wood chips at high temperature

88%

Boszko M., Malczewski J., Grabarczyk R.

Annual Review of Agricultural Engineering

|

2006

|

tom 05

7

Efficiency of energy wood chip production from forest biomass

75%

Moskalik T., Borkowska M., Sadowski J., Zastocki D.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

|

2012

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tom 11

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nr 4

Various activities are undertaken worldwide in order to counteract the visible climate changes. One of them is promotion of renewable energy sources. Aims established by the European Commission with respect to increasing the share of energy obtained from RES assume an average increase of up to 20% by the year 2020. Poland, as an EU member state has been obliged to increase the share of energy from RES to 15%. Promoting renewable energy sources contributes to diversification of supplies, thus providing conditions for the development of energetics at a local level. Taking into account Polish conditionings it is believed that biomass, including forest biomass, can be an important renewable energy source. The present study focuses on the problem of efficiency of energy wood chip production from forest biomass utilizing a Bandit 2090 wood chipper. Chipping efficiency, depending on the condition of particular tree stands, ranged from 14 to 17 m3·h-1.

8

Investigation on acetylation degree of marcerized pine wood (Pinus sylvestris L.) dried by different methods

75%

Zawadzki J., Elbe P., Drozdzek M., Gawron J., Klosinska T.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

|

2013

|

tom 84

9

Spoil heaps - influence of ash and bulk weight

75%

Kvietkova M., Gasparik M., Slavik M., Ruman D., Cafourek J.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

|

2015

|

tom 92

10

Colonization by fungi of wood chips stored in industrial conditions

75%

Kropacz A., Fojutowski A.

Drewno. Prace Naukowe. Doniesienia. Komunikaty

|

2014

|

tom 57

|

nr 193

The long-term storage of chips in the form of piles visibly decreases the quality of this material. The aim of the research was to identify the colonization by fungi of forest chips intended for energy purposes and the growth of fungi, as well as the changes they can cause in wood during the storage of chips. The first sample for biological tests was taken when a test pile was being raised on the premises ofa power plant (the initial state) and successive samples were taken from the inside of the pile after 30, 60 and 120 days of storage. The surfaces of the samples were observed using a stereoscopic microscope. Wood inocula, taken from the inside of the samples, were placed on a sterile culture medium, incubated for 10 days, and then observed under a microscope. Numerous filamentous fungi, responsible for the soft rot of wood, were isolated from the samples taken when the pile was raised and after 30 and 60 days of storage; however, no traces of decay in these chips were observed under the microscope. For the first time, fungi belonging to the Basidiomycetes class were observed on chips taken from the pile after 120 days. Hence, it is only after 120 days that some of the changes in chip quality, signalised bya decrease in mass, may be connected with the growth of Basidiomycetes.

11

Compost oversize fraction composition

75%

Stejskal B., Jordankova K.

Infrastruktura i Ekologia Terenów Wiejskich

|

2015

|

nr IV/3

12

Physical and chemical properties of pine wood chips produced from logging residues

75%

Jablonski K., Rozanski H.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

|

2009

|

tom 08

|

nr 2

The paper presents research results into quantities of branches and tree tops forming logging residues as well as the calorific value, moisture and ash contents of chips burned in a fluidal boiler. The results showed that logging residues make up 17% of the above ground tree biomass, which gives about 52.8 t/ha. The calorific value of the wood chips was 7.8 MJ/kg for fresh material, 12.9 MJ/kg for chips after 4 month storage time and 16.2 MJ/kg after storing the chips for 8 months. The ash from chips burned in a boiler with a fluidised bed contained 62% of silicon dioxide, resulting from the filling role of sand in the fluidal bed. The share of CaO was 6%, MgO – 2.8% and N2O – 0.4%.

13

Fuel wood chips fractions

75%

Glazar K.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

|

2006

|

tom 05

|

nr 2

14

Nowosc na rynku. Nowy pomiar podczerwienia wilgotnosci wiorow i wlokien

63%

W K.

Biuletyn Informacyjny Ośrodka Badawczo-Rozwojowego Przemysłu Płyt Drewnopochodnych w Czarnej Wodzie

|

1997

|

tom 38

|

nr 3

144

15

Poddane obrobce zabezpieczajacej wiory drzewne jako izolacja termiczna

63%

W K.

Biuletyn Informacyjny Ośrodka Badawczo-Rozwojowego Przemysłu Płyt Drewnopochodnych w Czarnej Wodzie

|

1995

|

tom 36

|

nr 2

142

16

The effect of amounts of rape straw added to chips on properties of particle boards depending on the type of bonding agent

63%

Dukarska D., Dziurka D., Lecka J., Mirski R.

Electronic Journal of Polish Agricultural Universities. Series Wood Technology

|

2006

|

tom 09

|

nr 3

17

Instalacja ogrzewnicza na zrebki w Erzgebirge [Rudawy Czeskie] na ruchu

63%

W K.

Biuletyn Informacyjny Ośrodka Badawczo-Rozwojowego Przemysłu Płyt Drewnopochodnych w Czarnej Wodzie

|

1995

|

tom 36

|

nr 1

44-45

18

Stump wood as an element of forest biomass to be used for generating energy

63%

Mikolajczak E., Mydlarz K., Popyk W.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

|

2013

|

tom 83

19

Properties of boards manufactured from evening primrose straw particles depending on the amount and type of binding agent

63%

Dukarska D., Lecka J., Czarnecki R.

Electronic Journal of Polish Agricultural Universities. Series Wood Technology

|

2010

|

tom 13

|

nr 1

20

Kompletne instalacje do przygotowywania wiorow

63%

W K.

Biuletyn Informacyjny Ośrodka Badawczo-Rozwojowego Przemysłu Płyt Drewnopochodnych w Czarnej Wodzie

|

1997

|

tom 38

|

nr 3

144-145

Ograniczanie wyników

Bulk density of forest energy chips

Industrial wood chips fractions

Effect of chipper knives sharpening on the forest chips quality

The effect of feed speed on effectiveness of chip evacuation in drilling of wood materials

Investigations on the calorific value of forest chips

Convective drying of wood chips at high temperature

Efficiency of energy wood chip production from forest biomass

Investigation on acetylation degree of marcerized pine wood (Pinus sylvestris L.) dried by different methods

Spoil heaps - influence of ash and bulk weight

Colonization by fungi of wood chips stored in industrial conditions

Compost oversize fraction composition

Physical and chemical properties of pine wood chips produced from logging residues

Fuel wood chips fractions

Nowosc na rynku. Nowy pomiar podczerwienia wilgotnosci wiorow i wlokien

Poddane obrobce zabezpieczajacej wiory drzewne jako izolacja termiczna

The effect of amounts of rape straw added to chips on properties of particle boards depending on the type of bonding agent

Instalacja ogrzewnicza na zrebki w Erzgebirge [Rudawy Czeskie] na ruchu

Stump wood as an element of forest biomass to be used for generating energy

Properties of boards manufactured from evening primrose straw particles depending on the amount and type of binding agent